ATSG Honda BAXA MAXA M6HA

8/10/2019 ATSG Honda BAXA MAXA M6HA

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INDEX

Copyright © ATSG 1999

HOND A ACCO RD BAXA/MAX AHOND A PREL UDE M6HA

OVERVIEW .............. ............... ............... ............... ............ ............... ............... ............... ............... ............... ........ 3CLUTCH APPLICATION CHART............. ............... ............... ............... ............... ............... ............... ............... 4COMPONENT LOCATOR......................... ............... ............... ............... ............... ............... ............... ............... ... 5SOLENOID FUNCTION CHART ............... ............... ............... ............... ............... ............... ............... ............... . 7LOCKUP OPERATION.................. ............... ............... ............... ............... ............... ............... ............... ............... 13

SOLENOID OPERATION................... ............... ............... ............... ............... ............... ............... ............... .......... 14PRESSURE SWITCH DIAGNOSIS ............... ............... ............... .............. ............... ............... ............... ............. 18SPORT SHIFT MODE (PRELUDE ONLY) .............. ............... ............... ............... ............... ............... ............... .. 19GRADE LOGIC CONTROL SYSTEM.......... ............... ............... ............... ............... ............... ............... ............. 20CODE RETRIEVAL PROCEDURE (ACCORD)..... ............... ............... ............... ............... ............... ............... .. 22CODE CLEARING PROCEDURE (ACCORD) ............. ............... ............... ............... ............... ............... ........... 23CODE RETRIEVAL PROCEDURE (PRELUDE)................. ............... ............... ............... ............... ............... ..... 24CODE CLEARING PROCEDURE (PRELUDE)................ ............... ............... ............... ................ ............... ....... 25DIAGNOSTIC TROUBLE CODE DEFINITIONS ............. ............... ............... ............... ............... ............... ..... 26TCM WIRING DIAGRAM AND TERMINAL LOCATIONS (ACCORD)................... ............... ............... ......... 29TCM WIRING DIAGRAM AND TERMINAL LOCATIONS (PRELUDE)................ ............... ............... ........... 30TROUBLE SHOOTING GUIDES ............. ............... ............... ............... ............... ............... ............... ............... .... 31A/T GEAR POSITION SWITCH CONTINUITY CHART.............. ............... ............... ............... ............... ......... 35OIL PRESSURE CHART............... ............... ............... ............... ............... ............... ............... ............... ............... .. 36AUTOMATIC TRANSMISSION FLUID REQUIREMENTS..... ............... ............... ............... ............... ............ 37

TRANSMISSION REMOVAL............. .............. ............... ............... ............... ............... ............... ............... ........... 38DIS-ASSEMBLY END COVER AND IDLER GEARS (BAXA)..... ............... ............... ............... ............... ........... 43DIS-ASSEMBLY END COVER AND IDLER GEARS (M6HA)...... ............... ............... ............... ............... .......... 44GENERAL DIS-ASSEMBLY.............. ............... ............... ............... ................ ............... ............... ............... ............ 46VALVE BODY DIS-ASSEMBLY............... ............... ............... ............... ............... ............... ............... ............... ..... 50INSPECTION AND RE-ASSEMBLY............... ............... ............... ............... ............... ............... ............... ............ 61GENERAL RE-ASSEMBLY............... ............... ............... ................ ............... ............... ............... ............... ........... 85TORQUE CONVERTER AND DRIVE PLATE....................... ............... ............... ............... ............... ............... ... 94TRANSMISSION INSTALLATION......... ............... ............... ............... ............... ............... ............... ............... ..... 95SPECIFICATIONS (BAXA)...... ............... ............... ............... ............... ............... ............... ............... ............... .... 101SPECIFICATIONS (M6HA)....... ............... ............... ............... ............... ............... ............... ............... ............... ... 106SPECIAL TOOLS............. ............... ............... ............... ......... ............... ............... ............... ............... ............... .... 109BULLETINS................... ............... ............... ............. ............. ............... ............... ............... ............... ............... ..... 110

AUTOMATIC TRANSMISSION SERVICE GROUP 18639 S.W. 107TH AVENUEMIAMI, FLORIDA 33157

(305) 670-4161



INTRODUCTIONHONDA ACCORD BAXA/MAXA

HONDA PRELUDE M6HA

DALE ENGLANDFIELD SERVICE CONSULTANT

ED KRUSETECHNICAL CONSULTANT

WAYNE COLONNATECHNICAL SUPERVISOR

PETER LUBANTECHNICAL CONSULTANT

JIM DIALTECHNICAL CONSULTANT

GREGORY LIPNICK TECHNICAL CONSULTANT

JERRY GOTTTECHNICAL CONSULTANT

JON GLATSTEINTECHNICAL CONSULTANT

DAVID CHALKER TECHNICAL CONSULTANT

ROLAND ALVAREZTECHNICAL CONSULTANT

GERALD CAMPBELLTECHNICAL CONSULTANT

1

No part of any ATSG publication may be reproduced, stored in any retrieval system or transmitted in any form or by any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise,without written permission of Automatic Transmission Service Group. This includes all text illustrations,tables and charts.

"ATSG would like to thank Honda Motor Co. for the illustrationsand information contained in this manual."

The information and part numbers contained in this booklet havebeen carefully compiled from industry sources known for their

reliability, but ATSG does not guarantee its accuracy.

Copyright © ATSG 2006

Updated August, 2006

The USA built BAXA and the Japan built MAXA and the M6HA transaxle is part of a new generation of 3 shafttransaxles. The features that make these units unique are the use of 6 solenoids, 2 pressure switches and NO one-way clutches.This new generation transaxle's PCM has a unique solenoid strategy to control shift overlap for upshifts anddownshifts. The PCM also requires a full complement of sensors to control shift timing and shift feel.All pertinent information for tear-down and assembly as well as some electrical diagnosis, covering 1997 to2001 models, has been included in this manual.

AUTOMATIC TRANSMISSION SERVICE GROUP 18639 S.W. 107TH AVENUEMIAMI, FLORIDA 33157

(305) 670-4161

MIKE SOUZATECHNICAL CONSULTANT



HONDA ACCORD BAXA/MAXAHONDA PRELUDE M6HA

SHIFT CONTROLSOLENOID "C"

(SCS"C")BROWN CONNECTOR

SHIFT CONTROLSOLENOID "B"

(SCS"B")BLACK CONNECTOR

CLUTCH PRESSURE CONTROL SOLENOID "B"

(CPCS"B")BLACK CONNECTOR

MAINSHAFT SPEED SENSOR

COUNTERSHAFT SPEED SENSOR

CLUTCH PRESSURE CONTROL SOLENOID "A"

(CPCS"A")BROWN CONNECTOR

3rd GEAR PRESSURE SWITCH

(Accord Only)

2nd GEAR PRESSURE SWITCH

SHIFT CONTROLSOLENOID "A"

(SCS"A")

LOCK-UPCONTROL SOLENOID

(LUCS)

AUTOMATIC TRANSMISSION SERVICE GROUP

Technical Service Information

3



BAXA/MAXA/M6HACLUTCH APPLICATION CHART



4





HONDA PRELUDE M6HACOMPONENT LOCATOR

TRANSMISSIONCONTROL MODULE (TCM)

ENGINE CONTROLMODULE (ECM)

2ND CLUTCH

PRESSURE SWITCH

"A & B" CLUTCHPRESSURE CONTROLSOLENOID ASSEMBLY

SHIFT CONTROLSOLENOID "C"

SHIFT CONTROLSOLENOID "B"

LOCK-UP CONTROL&SHIFT CONTROL

SOLENOID "A" ASSEMBLY

COUNTERSHAFT

SPEED SENSOR

A/T GEAR

POSITION SWITCH

MAINSHAFTSPEED SENSOR

VEHICLESPEED SENSOR



6







8

1 s t C l u t c h

3 r d C l u t c h

3 r d C l u t c h

P r e s s u r e S w i t c h

2 n d C l u t c h

P r e

s s u r e S w i t c h

2 n d C l u t c h

4 t h C l u t c h

" O N "

E N G A G E M E N T F R O M N E U T R A L T O

R E V E R S E A N D R E V E R S E S O L E N O I D A P P L I C A T I O N

N E U T R A L T O R E V E R S E T R A N S I T I O

N

R E V E R S E

S e l e c t o r p o s i t i o n


G e a r

G e a r

P r e s s u r e M o d e


S C S " A "

S C S " A "

S C S " B "

S C S " B "

S C S " C "

S C S " C "

C P C S " A "

C P C S " A "

C P C S " B "

C P C S " B "

L U C

S

L U C

S

D 4

D 4

R R

O F F

O F F

O N

O N

O N

O F F

O F F

O F F

m o d u l a t i n g

O F

F

O F

F

O F F

C P C

L I N E

S u m m a r y : S h i f t S o l e n o i d " C " i s O N w h i c h s h

u t s o f f o i l t o t h e b o r e p l u g s i d e o f t h e R e v e r s e C P C v a l v e . L i n e P r e s s u r e

i s s e n

t t o t h e R e v e r s e C P C v a l v e w h i c h i s c o n t r o l l e d b y t h e m o d u l a t i o n o f C l u t c h P

r e s s u r e C o n t r o l S o l e n o i d v a l v e

" A " . T h i s c o n t r o l s t h e a p p l i c a t i o

n o f t h e 4 t h c l u t c h v i a t h e S e r v o V a l v e

a n d M a n u a l V a l v e .

S u m m a

r y : S h i f t S o l e n o i d " C " i s t u r n e d O F F

w h i c h s t r o k e s t h e R e v e r s e C P C v a l v e . T h i s s w i t c h e s 4 t h c l u t c h p r e s s u r e

f r o m C P C m o d e t o L i n e p r e s s u r e m o d e v i a t h e S e r v o V a l v e a n d M

a n u a l V a l v e .

N E U T R A L


G e a r

P r e s s u r e M o d e S C S " A "

S C S " B " S C S " C "

C P C S " A " C P C S " B " L U C

S

N

N

O F F

O N

O F F

O F F

O F F

O F

F

n / a

SOLENOID CONTROL



SOLENOID CONTROL



9

1 s t C l u t c h

" O N "

3 r d C l u t c h

3 r d C l u t c h


2 n d C l u t c h


2 n d C l u t c h

4 t h C l u t c h

E N G A G E M E N T F R O M N E U T R A

L T O D 4 " 1 s t " G E A R S O L E N O I D A P P L I C A T I O N

N E U T R A L

N E U T R A L T O

D 4 - 1 s t G E A R T R A N S I T I O N

D 4 - 1 s t G E A R




G e a r

G e a r

G e a r




S C

S " A "

S C

S " A "

S C

S " A "

S C S " B "

S C S " B "

S C S " B "

S C S " C "

S C S " C "

S C S " C "

C P C S " A "

C P C S " A "

C P C S " A "

C P C S " B "

C P C S " B "

C P C S " B "

L U C S

L U C S

L U C S

N D 4

D 4

N 1 s t

1 s t

O F F

O N

O F F

O N

O N

O N

O F F

O N

O N

O F F

m o d u l a t i n g

O F F

O F F

O F F

O F F

O F F

O F F

O F F

n / a

C P C

L I N E

S u m m a r y : S h i f t S o l e n o i d s " A " a n d " C " a r e t u

r n e d O N t o c o n n e c t 1 s t c l u t c h a p p l y o i l t o t h e s p r i n g s i d e a n d c e n t e r o f

C P C v a l v e " A . " C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " A " o i l m o d u l a t e s o n t h e b o r e p l u g s i d e o f C P C v a l v e " A "

t o c o n t r o l 1 s t c l u t c h a p p l i c a t i o n . T h e 1 s t c l u t c h i s a p p l i e d w i t h r e d u c e d p r e s s u r e , w h i c h i s C P C m o d e .

S u m m a r

y : S h i f t S o l e n o i d " A " i s t u r n e d O F F w

h i c h s w i t c h e s t h e p o r t o n S h i f t V a l v e " A " f r o m C P C t o L i n e P r e s s u r e .

1 s t C l u t c

h p r e s s u r e i s n o w L i n e P r e s s u r e



SOLENOID CONTROL



10

1 s t C l u t c h

3 r d C l u t c h

3 r d C l u t c h


2 n d C l u t c h


" O N "

2 n d C l u t c h

" O N "

4 t h C l u t c h

" 1 s t " T O " 2 n d " U P S H I F T A N D " 2 n d " G E A R S O L E N O I D A P P L I C A T I O N

D 4 - 1 s t G E A R

D 4 - 1 s t T O 2 n d G E A R T R A N S I T I O N

D 4 - 2 n d G E A R




G e a r

G e a r

G e a r




S C S " A "

S C S " A "

S C S " A "

S C S " B "

S C S " B "

S C S " B "

S C S " C "

S C S " C "

S C S " C "

C P C S " A "

C P C S " A "

C P C S " A "

C P C S " B "

C P C S " B "

C P C S " B "

L U C

S

L U C

S

L U C

S

D 4

D 4

D 4

2 n d

2 n d

1 s t

O N

O N

O F F

O N

O N

O N

O N

O N

O N

O N

m o d u l a t i n g

m o d u l a t i n g

O F F

O F F

O F

F

O F

F

O F F

O F

F

C P C

L I N E

L I N E

S u m m a r y : S h i f t S o l e n o i d s " A " a n d " C " a r e t u r n e d O N t o c o n n e c t 1 s t c l u t c h a p p l y o i l t o t h e s p r i n g s i d e a n d c e n t e r o f

C P C v a

l v e " A . " C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " A " o i l m o d u l a t e s o n t h e b o r e p l u g s i d e o f C P C v a l v e " A "

w h i c h t u r n s 1 s t c l u t c h p r e s s u r e b a c k t o C P C m o d e . C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " B " o i l m o d u l a t e s o n t h e

b o r e p l u g s i d e o f C P C v a l v e

" B " w h i c h c o n t r o l s t h e a p p l i c a t i o n o f

t h e 2 n d c l u t c h .

S u m m a r y : S h i f t S o l e n o i d " C " i s t u r n e d O F

F w h i c h s w i t c h e s 2 n d c l u t c h p r e s s u r e

t o L i n e p r e s s u r e m o d e v i a t h e

M a n u a l v a l v e , a n d c o n n e c t s t h e 1 s t c l u t c h t o a n e x h a u s t v i a S h i f t V a l v e " C . " C l u t c h

P r e s s u r e C o n t r o l S o l e n o i d v a l v e

" A " i s t u r n e d o n t o b l o c k

p r e s s u r e f r o m t h e b o r e p l u g s i d e o f C P

C v a l v e " A . "





11

1 s t C l u t c h

3 r d C l u t c h

" O N "

3 r d C l u t c h


" O N "

2 n d C l u t c h


2 n d C l u t c h

4 t h C l u t c h

" 2 n d " T O " 3 r d " U P S H I F T A

N D " 3 r d " G E A R S O L E N

O I D A P P L I C A T I O N

D 4 - 2 n d T

O 3 r d G E A R T R A N S I T I O N

D 4 - 3 r d G E A R

D 4 - 2 n d G E A R




G e a r

G e a r

G e a r



P r e s s u r e M o d e S

C S " A "

S

C S " A "

S

C S " A "

S C S " B "

S C S " B "

S C S " B "

S C S " C "

S C S " C "

S C S " C "

C P C S " A "

C P C S " A "

C P C S " A "

C P C S " B "

C P C S " B "

C P C S " B "

L U C

S

L U C

S

L U C

S

D 4

D 4

D 4

3 r d

3 r d

2 n d

O N

O N

O N

O F F

O F F

O N

O F F

O F F

O N

O F F

O N

m o d u l a t i n g

m o d u l a t i n g

O F

F

O F

F

O F

F

O N

O F F

C P C

L I N E

L I N E

S u m m a r y : S h i f t S o l e n o i d " B " i s t u r n e d O F

F , w h i c h s t r o k e s S h i f t V a l v e B , t o c o n n e c t t h e 2 n d c l u t c h b a c k t o C P C

v a l v e

" B . " 2 n d c l u t c h p r e s s u r e i s c h a n g e d t o C P C m o d e t h r u t h e m o d u l a t i o n o f C l u t c h P r e s s u r e C o n t r o l S o l e n o i d

v a l v e "

B " a c t i n g o n t h e b o r e p l u g s i d e o f C P C v a l v e " B . " C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " A " a c t i n g o n t h e

b o r e p l u g s i d e o f C P C v a l v e " A " c o n t r o l s t h e a p p l i c a t i o n o f t h

e 3 r d c l u t c h .

S u m m

a r y : S h i f t S o l e n o i d " C " i s t u r n e d O N w h i c h s t r o k e s S h i f t V a l v e " C " a n d s w i t c h e s 3 r d c l u t c h p r e s s u r e t o L i n e

p r e s s u r e m o d e v i a t h e M a n u a l v a l v e ,

a n d c o n n e c t s t h e 2 n d c l u t c h t o a n e x h

a u s t v i a S h i f t V a l v e " C . "

SOLENOID CONTROL



SOLENOID CONTROL



12

1 s t C l u t c h

3 r d C l u t c h

3 r d C l u t c h


2 n d C l u t c h


2 n d C l u t c h

4 t h C l u t c h

" O N "

" 3

r d " T O " 4 t h " U P S H I F T A

N D " 4 t h " G E A R S O L E N O I D A P P L I C A T I O N

D 4 - 3 r d T

O 4 t h G E A R T R A N S I T I O N

D 4 - 4 t h G E A R

D 4 - 3 r d G E A R




G e a r

G e a r

G e a r



P r e s s u r e M o d e S

C S " A "

S

C S " A "

S

C S " A "

S C S " B "

S C S " B "

S C S " B "

S C S " C "

S C S " C "

S C S " C "

C P C S " A "

C P C S " A "

C P C S " A "

C P C S " B "

C P C S " B "

C P C S " B "

L U C

S

L U C

S

L U C

S

D 4

D 4

D 4

4 t h

4 t h

2 n d

O F F

O F F

O N

O F F

O F F

O F F

O N

O N

O F F

O N

O F F

m o d u l a t i n g

m o d u l a t i n g

O F

F

O F

F

O F

F

O F F

O N

C P C

L I N E

L I N E

S u m m

a r y : S h i f t S o l e n o i d " A " i s t u r n e d O F F , w h i c h s t r o k e s S h i f t V a l v e " A , " t o c o n n e c t t h e 3 r d c l u t c h b a c k t o C P C

v a l v e

" A " . " 3 r d c l u t c h p r e s s u r e i s t u r n e d t o C P C m o d e t h r u t h e m o d u l a t i o n o f C l u t c h P r e s s u r e C o n t r o l S o l e n o i d

v a l v e " A " a c t i n g o n t h e b o r e p l u g s i d e o f C P C v a l v e " A . " C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " B " o i l a c t s o n t h e

b o r e p l u g s i d e o f C P C v a l v e " B " w h i c h c o n t r o l s t h e a p p l i c a t i o n o f t h e 4 t h c l u t c h .

S u m m a

r y : S h i f t S o l e n o i d " C " i s t u r n e d O F F

w h i c h s t r o k e s S h i f t v a l v e " C . " T h i s s w

i t c h e s 4 t h c l u t c h p r e s s u r e t o L i n e

p r e s s u r e v i a t h e M a n u a l v a l v e . C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " A " i s O N t o b l o c k p r e s s u r e t o t h e b o r e p l u g

s i d e o f C P C v a l v e " A . " T h e 3 r d c l u t c h i s c o n n e c t e d t o a n e x h a u s t v i a S h i f t V a l v e " C . "



LOCK-UP CONTROLThe Lock-up Solenoid is an 'ON/OFF" solenoid which strokes the lock-up shift valve to turn lock-up "ON".The PCM/TCM controls lock-up apply feel by the use of the A/T Clutch Pressure Control Solenoids actingon the lock-up control and timing valves as soon as the Lock-up Solenoid is turned "ON" providing partialand full lock-up. Accord models attain lock-up in 3rd and 4th gears. Prelude models attain lock-up in 2nd,3rd and 4th gears.

D 4 - 4 t h G E A R - T C C A P P L I E D


G e a r


S C S " A "

S C S " B "

S C S " C "

C P C S " A "

C P C S " B " L U C S

D 4

4 t h

O F F

O F F

O N

m o d u l a t i n g

O N

O F F

L I N E

S u m m a r y : T h e L o c k - u p C o n t r o l S o l e n o i d i s t u r n e d O N w h i c h d r a i n s t h e o i l o n t h e

s p r i n g s i d e o f

t h e L o c k - u p s h i f t v a l v e . T h e c o m p u t e r c o n t r o

l s t h e s w i t c h i n g o f P a r t i a l , H a l f , a n d F

u l l C o n v e r t e r

C l u

t c h a p p l i c a t i o n t h r u t h e m o d u l a t i o n o f t h e C l u t c h P r e s s u r e C o n t r o l S o l e n o i d

v a l v e " A "

a c t i n g o n t h e L o c k - u p t i m i n g a n d c o n t r o l v a l v e . E x a m p l e : W h e n C l u t c h P r e s s u r e C o n t r o l

S o

l e n o i d v a l v e " A " p r e s s u r e i s l o w , a n d t h e L o c k - u p C o n t r o l S o l e n o i d i s O N , t h e T o r q u e

C o

n v e r t e r C l u t c h i s a p p l i e d p a r t i a l l y . W h

e n C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " A "

S u m m a r y : T h e L o c k - u p C o n t r o l S o l e n o i d i s t u r n e d O N w h i c h d r a i n s t h e o i l o n t h e

s p r i n g s i d e o f

t h e L o c k - u p s h i f t v a l v e . T h e c o m p u t e r c o n t r o

l s t h e s w i t c h i n g o f P a r t i a l , H a l f , a n d F

u l l C o n v e r t e r

C l u

t c h a p p l i c a t i o n t h r u t h e m o d u l a t i o n o f t h e C l u t c h P r e s s u r e C o n t r o l S o l e n o i d

v a l v e " B "

a c t i n g o n t h e L o c k - u p t i m i n g a n d c o n t r o l v a l v e . E x a m p l e : W h e n C l u t c h P r e s s u r e C o n t r o l

S o

l e n o i d v a l v e " B " p r e s s u r e i s l o w , a n d t h e L o c k - u p C o n t r o l S o l e n o i d i s O N , t h e T o r q u e

C o

n v e r t e r C l u t c h i s a p p l i e d p a r t i a l l y . W h

e n C l u t c h P r e s s u r e C o n t r o l S o l e n o i d v a l v e " B "

T O R Q U E C O N V E R T E

R C L U T C H E N G A G E M E N T

D 4 - 3 r d G E A R - T C C A P P L I E D


G e a r


S C S " A "

S C S " B "

S C S " C "

C P C S " A "

C P C S " B " L U C S

D 4

2 n d

O N

O F F

m o d u l a t i n g

O F F

O N

O N

L I N E

T O R Q U E C O N V E R T E R

C L U T C H " O F F "


C L U T C H " P A R T I A L A P P L I C A T I O N

"


C L U T C H " H A L F A P P L I C A T I O N "


C L U T C H " F U L L A P P L I C A T I O N "

T C C

C L U T C H

T C C

C L U T C H

T C C

C L U T C H

T C C

C L U T C H



13



SOLENOID CHECK AND OPERATION

LOCK-UP CONTROL AND SHIFT CONTROL SOLENOID "A" OFF

LOCK-UP CONTROL AND SHIFT CONTROL SOLENOID "A" ON



Copyright © 2002 ATSG

1 4 1

1 4 1

LOCK-UP CONTROL SOLENOID

LOCK-UP CONTROL SOLENOID

MODULATING VALVE PRESSURE TO LOCK-UP

SHIFT VALVE (spring side)

MODULATING VALVE PRESSURE TO LOCK-UP

SHIFT VALVE (spring side)

MODULATING VALVE PRESSURE TO SHIFT

VALVE "A"

MODULATING VALVE

PRESSURE TO SHIFT VALVE "A"

SHIFT CONTROL SOLENOID "A"

SHIFT CONTROL SOLENOID "A"

solenoid gasket

solenoid gasket

XBLOCKED

XBLOCKED

X

X

When the Lock-up control Solenoid is OFF, Modulating Pressure is HIGH, which prevents the Lock-up Shift Valve from stroking.

When Shift Control Solenoid "A" is OFF, Modulating Pressure is HIGH, which strokes Shift Valve "A."

When the Lock-up control Solenoid is ON, Modulating Pressure is EXHAUSTED, which allows the Lock-up ShiftValve to stroke.

When Shift Control Solenoid "A" is ON, Modulating Pressure is EXHAUSTED, which allows Shift Valve "A" tobe held to the right by its spring.

CONNECTED

CONNECTED

14







SHIFT CONTROL SOLENOID "B" AND "C" OFF

SHIFT CONTROL SOLENOID "B" AND "C" ON

X

X

X

X

FROM MODULATORVALVE

FROM MODULATORVALVE

FROM MODULATORVALVE

FROM MODULATORVALVE

TO SHIFT VALVE "B" AND SERVO

CONTROL VALVE

FROM SHIFT VALVE "B" AND SERVO

CONTROL VALVE

TO SHIFT VALVE "C" AND REVERSE

CPC VALVE

FROM SHIFT VALVE "C" AND REVERSE

CPC VALVE

SCS "B"ON

(black connector)

SCS "B"OFF

(black connector)

SCS "C"ON

(brown connector)

SCS "C"OFF

(brown connector)

Summary: When Shift Control Solenoid "B" and "C" are OFF, oil from the Modulating valve isapplied to stroke the valves that the solenoids control.

CONNECTED

CONNECTED

CONNECTED

CONNECTED

Summary: When Shift Control Solenoid "B" and "C" are ON, oil from the Modulatingvalve is blocked at the end of the solenoid. The valves, that the solenoids control, are

connected to the exhaust at the top of the solenoid.

15



From Modulating Valve( Solenoid regulator)

From Modulating Valve( Solenoid regulator)

Pressure port

Pressure port

To CPC valve "A" Reverse CPC valve

Shift valve "C"

To CPC valve "A" Reverse CPC valve

Shift valve "C"

To CPC valve "B" Shift valve "C" Shift valve "D"

To CPC valve "B" Shift valve "C" Shift valve "D"

CLUTCH PRESSURE CONTROL SOLENOID AND VALVE OPERATION "OFF"

CLUTCH PRESSURE CONTROL SOLENOID AND VALVE OPERATION "ON"

CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "B"

CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "A"

CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "A"

CLUTCH PRESSURE CONTROL SOLENOID AND VALVE "B"

CLUTCH PRESSURECONTROL

SOLENOIDS "OFF"

CLUTCH PRESSURECONTROL

SOLENOIDS "ON"

X

X

X

X

Clutch Pressure Control Solenoid and Valve "A" supply modulating pressure to CPC valve "A", ReverseCPC valve and Shift valve "C" when "OFF."

Clutch Pressure Control Solenoid and Valve "B" shut off the supply of modulating pressure to CPC valve

Clutch Pressure Control Solenoid and Valve "A" shut off the supply of modulating pressure to CPC valve"A", Reverse CPC valve and Shift valve "C" when "ON."

Clutch Pressure Control Solenoid and Valve "B" supply modulating pressure to CPC valve "B", Shiftvalve "C" and Shift Valve "D" when "ON."




16



CLUTCH PRESSURE CONTROL SOLENOID

VALVE "A" OFF

CLUTCH PRESSURE

CONTROL SOLENOIDVALVE "A" ON


VALVE "B" OFF


VALVE "B" ON

APPLY AIR

PRESSURE HERE

APPLY AIR PRESSURE HERE

AIR WILL EXHAUSTTHRU THIS HOLE

AIR WILL EXHAUST

THRU THIS HOLE

AIR IS BLOCKEDTO THIS HOLE

AIR IS BLOCKEDTO THIS HOLE




CLUTCH PRESSURE CONTROL SOLENOID VALVES "A" AND "B" OFF



CLUTCH PRESSURE CONTROL SOLENOID VALVES "A" AND "B" ON

17






PRESSURE SWITCH CHECK AND OPERATION2nd OR 3rd GEAR PRESSURE SWITCH "OFF"

2nd OR 3rd GEAR PRESSURE SWITCH "ON"

0.L

.001

OFF

OFF

RPM

RPM

RPM

RPM

COM

COM

mA

mA

A

A

V

V

V

V

mV

mV

V

V

mA A

mA A

mA A

mA A

NO PRESSURE APPLIED

40-100 psi.OF PRESSURE

APPLIED

CLOSED AT APPROXIMATLY

40 psi.

SUMMARY: THE 2nd AND 3rd GEAR PRESSURE SWITCHES ARE "OPEN" WITH NO PRESSURE APPLIED

SUMMARY: THE 2nd AND 3rd GEAR PRESSURE SWITCHES "CLOSE" WHEN 40-100 psi. OF PRESSURE IS APPLIED TO THE SWITCH.

18





CLUTCH PRESSURE CONTROLThe PCM/TCM regulates the A/T Clutch Pressure Control Solenoids "A" and "B" thereby controllingall clutch apply pressure via the clutch pressure control (CPC) valves as well as lock-up apply

pressure.

SOLENOID CONTROL

SEQUENTIAL SPORTSHIFT MODE (PRELUDE ONLY)When in the D4 position, while sliding the shift lever to the Sequential Sportshift Mode position, thedriver can use the shift lever to upshift and downshift similar to the operation of a manualtransmission.Pushing the shift lever towards the "+" indicator results in an upshift to the next higher gear.Pushing the shift lever towards the "-" indicator results in a downshift to the next lower gear.The number of the selected gear is displayed in the shift indicator next to the D4 indicator as seenbelow. The transmission does not automatically shift, it remains in the selected gear position.

The transmission will upshift or downshift automatically under the following conditions:1. Downshift from 4th to 3rd when more power is required such as when climbing a hill.2. Provide engine braking when on a steep incline.3. Downshift to 1st gear when the vehicle comes to a stop.4. Under proper conditions, the PCM/TCM will allow a downshift to avoid engine overreving.5. A coast downshift will occur to a lower gear when vehicle speed drops low enough to require the

downshift signal at which time the shift indicator will flash several times to indicate a lower gear position.

SPORTSHIFT MODESHIFT INDICATOR

2

19



GRADE LOGIC CONTROL SYSTEM

The PCM/TCM compares actual driving conditions with memorized driving conditions, by the use of aFuzzy Logic System and input from various sensors to control shifting while the vehicle is ascending ordescending a hill, or during speed reduction.

ASCENDING CONTROLWhen the computer determines that the vehicle is climbing a hill in the D4 or D3 positions, the GradeLogic System extends the engagement area of 2nd and 3rd gear to prevent the transmission fromfrequently shifting between 2nd and 3rd gears, and between 3rd and 4th gears in order to shiftbusyness and to also have adequate power.Shift schedules stored in the computer between 2nd and 3rd gears, and between 3rd and 4th gears,enable the computer's Fuzzy Logic to automatically select the most suitable gear according to how steepthe hill is as shown in the graph below.



20



DESCENDING CONTROLWhen the computer determines that the vehicle is going down a hill in D4 or D3 positions, the closedthrottle upshift speed from 3rd to 4th gear and from 2nd to 3rd becomes faster than the set speed for flat

road driving to widen the 3rd and 2nd gear driving area. This in conjunction with engine braking fromdeceleration lock-up, achieves smooth driving when the vehicle is descending. There a two descendingmodes with different 3rd and 2nd gear driving areas depending on the gradient encountered as seen inthe graph below.

GRADE LOGIC CONTROL SYSTEM

DECELERATION CONTROLWhen the vehicle turns a corner and needs to decelerate first and then accelerate, the computer sets thedata for deceleration control to reduce the number of times the transmission shifts. When the vehicle isdecelerating from speeds above 27 mph (43 km/h), the computer shifts the transmission from 4th to 2ndgear earlier than normal to cope with upcoming acceleration.

IMPORTANT NOTE:

NEVER ROAD TEST A VEHICLE EQUIPPED WITH GRADE LOGIC CONTROL ON ALIFT!

THE VEHICLE WILL SHIFT HUNT AND/OR SKIP A GEAR, THE GRADE CONTROLSYSTEM BECOMES CONFUSED WITH THE WHEELS OFF THE GROUND AND WILLCOMMAND THE SHIFT SOLENOIDS IN SUCH A MANNER THAT IT WILL APPEAR TOBE A TRANSMISSION MALFUNCTION!



21



CODE RETRIEVAL PROCEDURE (ACCORD)

RETRIEVE CODES When the PCM/TCM senses an abnormality, the "D4" Lamp will begin to flash steadily as seen below.

In some instances the "MIL" Lamp will also be illuminated, check for those related codes first.Connect an OBD-II scan tool conforming to SAE J1978, to the Data Link Connector (DLC), as shownbelow, and check for codes in the generic category, and the transmission control system as well asany other system codes that may be pertinent. Also check for recorded freeze frame information andrefer to the code chart shown beginning on page15.

D4 LAMP FLASHESWHEN A FAULT IS

PRESENT

DATA LINKCONNECTOR

(DLC)

OBD-IISCAN TOOL

MILLAMP



22



CLEAR CODES Reset the PCM/TCM memory with the scan tool or remove the 7.5 AMP BACK-UP FUSE from thepassenger side under dash fuse box as shown below.

IMPORTANT NOTE:Remember to obtain the radio anti-theft codes so they may reinstalled in the event they are lost during thecode clearing process.

PASSENGER SIDEUNDER DASH

FUSE BOX

7.5 AMPBACK-UP FUSE

REMOVE THIS FUSETO CLEAR CODES

CODE CLEARING PROCEDURE (ACCORD)



23



CODE RETRIEVAL PROCEDURE (PRELUDE)

RETRIEVE CODES When the PCM/TCM senses an abnormality, the "D4" Lamp will begin to flash steadily as seen below.The Prelude offers two methods of code retrieval:

1. Connect an OBD-II compliant scan tool to the 16 pin Data Link Connector (DLC) shown, below left.2. Locate the 2 pin Service Check Connector, shown below right, and jump the SCS connector with the tool shown or a suitable substitute and read the "flash" codes shown in () found in the code chart beginning on page 15.

16 PINDATA LINK CONNECTOR

FOR SCAN TOOL USE

2 PIN SERVICECHECK CONNECTOR

D4 LAMPFLASHES STEADILY

JUMP SERVICECONNECTOR FOR

FLASH CODES



24



DTC 2

DTC 15

2 SHORT FLASHES

1 LONG FLASH

5 SHORT FLASHES

CODE RETRIEVAL PROCEDURE (PRELUDE)

The "flash" code format is shown directly below. Single digit codes are indicated by individual shortflashes.Two digit codes are indicated by long flashes followed by short flashes.

CODE CLEARING PROCEDURE (PRELUDE)

CLEAR CODES Reset the PCM/TCM memory with the scan tool or remove the 7.5 AMP BACK-UP FUSE from theunder hood fuse box for at least 10 seconds as shown below.

IMPORTANT NOTE:Remember to obtain the radio anti-theft codes so they may reinstalled in the event they are lost during thecode clearing process.

UNDER HOODFUSE BOX

REMOVE 7.5 AMPBACK-UP FUSE

TO CLEAR CODES

7.5



25



*DTC D4 LAMP MIL LAMP SYMPTOM POSSIBLE CAUSE

P0715

(15) ON·Erratic Shifting ·Faulty Mainshaft Speed Sensor

or Circuit

P0720(9) FLASHES ON

·Erratic Shifting·No 4th Gear ·No Lock-up·No Speedometer (Accord Only)

·Faulty Countershaft Speed Sensor or Circuit

P0725(11) OFF OFF

·No Lock-up (Prelude Only) ·Loss of Engine RPM Signal·Faulty Distributor/Ignition Coil·Wire or Connection·Faulty Ignition Coil

P0730(41)

OFF ON

·Failure to shift through the gears·Skipped Shifts

·Mechanically Bad Shift Solenoids·Mechanically Bad A/T Pressure·Control Solenoids·Low Clutch Pressure·Internal Component Slipping

P0740(40)

OFF ON

·Lock-up Clutch Does Not Apply·Lock-up Clutch Does Not Disengage

·Mechanically Bad Lock-up·Control Solenoid·Mechanically Bad A/T Pressure·Control Solenoids·Lock-up Shift, Control or Timing Valve Problems·Faulty Torque Converter ·Faulty Speed Sensor

P0753(7) ONFLASHES

FLASHES

·Does Not Shift, Stuck in 4th Gear ·Fails to Shift to 4th Gear ·Erratic Shifting

·Electrically Bad Shift Solenoid 'A'·Shift Solenoid "A" Circuit Fault

P0758(8)

FLASHES ON

·Electrically Bad Shift Solenoid 'B'·Shift Solenoid "B" Circuit Fault

·3rd Gear Starts·Fails to Shift to 1st or 2nd Gear ·Erratic Shifting

P0763(22)

FLASHES ON

·Electrically Bad Shift Solenoid 'C'·Shift Solenoid "C" Circuit Fault·Faulty 2nd Clutch Pressure Switch·Faulty 3rd Clutch Pressure

Switch (Accord Only)

·Late Shift From N to D or N to R·Excessive Shock or Flare on 1-2,2-3 or 3-4 Shift

·Excessive Shock or Flare on 2-1, 3-2 or 4-3 Shift

P0780(45)

FLASHES ON

·Incorrect Gear Ratio·Mechanical Problem in Hydraulic System

·Mechanical Fault with ShiftSolenoid A, B or C

·Mechanical Fault with A/TPressure Control Solenoid A or B

·Internal Hydraulic Leak

*DTC's in parentheses is the code the D4 Lamp will flash when the 2 pin Service Connector is jumped (Prelude Only), or a Scan Tool capable of displaying flash codes is connected to the16 pin DLC



26

DIAGNOSTIC TROUBLE CODE DEFINITION CHART




P01655(37)**

ON

·Lock-up Does Not Apply ·Short or Open in SEAF Wire

Between TCM Terminal B18 and ECM·Short or Open in SEFA Wire Between TCM Terminal B19 andECM·Faulty ECM

P01705(5)

ON

P01706(6)

OFF ON

P01709(24)

FLASHES OFF

P01738(25) OFFOFF

FLASHES

·Slide, Bump On The 1-2 Shift·Flare On The 1-2 Shift

·2nd Clutch Pressure Switch Circuit Failure·Faulty 2nd Clutch Pressure Switch

P01739(26)

P01750(46)

FLASHES ON

·Incorrect Gear Ratio·Transmission Slipping



FLASHES

·A/T Gear Position Switch Circuit Fault·Faulty A/T Gear Position Switch

·Erratic Shifts·Shift Quadrant Indicator Lamps Do Not Indicate Correct Gear Shift Position·Shift Lever Does Not Operate Properly

·A/T Gear Position Switch Circuit Fault·Faulty A/T Gear Position Switch

·Erratic Shifts·Shift Quadrant Indicator Lamps Do Not Indicate Correct GearShift Position

·Shift Lever Does Not Operate Properly

·Transmission Does Not Shift Into Sequential Sportshift Mode (Prelude Only)

·Mode Switch Circuit Faults·Faulty Mode Switch

OFFOFF

·Slide, Bump On The 2-3 Shift·Flare On The 2-3 Shift

·3rd Clutch Pressure Switch Circuit Failure·Faulty 3rd Clutch Pressure Switch

P01751(47)

FLASHES ON

·Incorrect Gear Ratio·Transmission Slipping


·Mechanical Fault with ShiftSolenoid 'B'


*DTC's in parentheses is the code the D4 Lamp will flash when the 2 pin Service Connector is jumped (Prelude Only), or a Scan Tool capable of displaying flash codes is connected to the16 pin DLC **The D4 Indicator Lamp cannot flash code (37) even when the Service Check Connector is jumped.



27




*DTC's in parentheses is the code the D4 Lamp will flash when the 2 pin Service Connector is jumped (Prelude Only), or a Scan Tool capable of displaying flash codes is connected to the16 pin DLC


P01753(1) ON

·Lock-up Does Not Apply ·Short or Open in Lock-up

Solenoid Circuit·Faulty Lock-up Solenoid

P01768(16)

ON

P01773(23)

P01790(3)

FLASHES ON

FLASHES

FLASHES

·A/T Clutch Pressure Control Solenoid 'A' Circuit Fault·Faulty A/T Clutch Pressure Control Solenoid 'A'

·Excessive Shock or Flares on Shifts·Lock-up Clutch Does Not Operate Smoothly·Lock-up Clutch does Not Apply

·Lock-up Clutch Does Not Apply (Prelude Only)

·Vehicle Speed Sensor Circuit Fault·Faulty Vehicle Speed Sensor

FLASHES ON

·Excessive Shock or Flares on Shifts·Lock-up Clutch Does Not Operate Smoothly·Lock-up Clutch does Not Apply

·A/T Clutch Pressure Control Solenoid 'A' Circuit Fault·Faulty A/T Clutch Pressure Control Solenoid 'A'

FLASHES ON

·Lock-up Clutch Does Not Apply ·Throttle Position Sensor CircuitFault

·Faulty Throttle position Sensor

P01791(4)



28




TCM CIRCUIT DIAGRAM AND TERMINAL LOCATIONS (ACCORD)

2 3 4

121314151617

252627

5 6

1819

282930

20

8

21

9 10

23

32

24

1 2

9

19

10

20

11

3

12

21

4

13

22

5

14

23

16

2425

1718

7 8 1 2 3

1314

25

15

5

16

26

6

17

27

7

18

28

19

8

20

29

9

21

30

10 1

6

1314

7

2 3

8

15

9 10

16

11 12

5

PCM CONNECTOR TERMINAL LOCATIONS

32 PIN 25 PIN 31 PIN 16 PIN

CRUISE CONTROLUNIT

MULTIPLEXCONTROL UNIT(DRIVERS)

D4

D4 INDICATORLAMP

P

R

N

D4

D3

2

1

TRANSMISSIONRANGESWITCH

P R N D3 2 1

A/T GEAR POSITIONINDICATOR

INSTRUMENT CLUSTER

SOLENOID POWERSUPPLY

BRAKE LAMPS

BRAKE SWITCH

B+

DATA LINKCONNECTOR

ENGINE COOLANTTEMPERATURESENSOR

THROTTLEPOSITIONSENSOR

IGNITIONSWITCH

BATTERY

PGM-FIMAINRELAY

PGM-FICONTROLUNIT

TRANSMISSIONCONTROLMODULE

A/T CLUTCHPRESSURECONTROLSOLENOID 'A'

A/T CLUTCHPRESSURECONTROLSOLENOID 'B'

SHIFTSOLENOID 'A'

SHIFTSOLENOID 'B'

SHIFTSOLENOID 'C'

LOCK-UPSOLENOID


COUNTERSHAFT

SPEED SENSOR

2ND CLUTCHPRESSURE SWITCH

3RD CLUTCHPRESSURE SWITCH

A5

B24

B14

A28

D16

D10

D12

D11

D1

D3

D2

D7

B18

B25

B8

B17B8

B10

B1

B9

B21

C28

C27

C18

C26

A10

A32

B20

B22

D5

A9

D6

D9

D8

D14

D15

D13

A14

#13 7.5 AMP FUSE(PASSENGER UNDER DASH FUSE BOX)

#46 15 AMP FUSE(UNDER HOOD FUSE BOX)

#1 15AMPFUSE(DRIVER UNDER DASH FUSE BOX)

#42 50AMP FUSE(UNDER HOOD FUSE BOX)

#41 100AMP FUSE(UNDER HOOD FUSE BOX)



29



TCM CIRCUIT DIAGRAM AND TERMINAL LOCATIONS (PRELUDE)

15 16 17 19 20 21 22 23 25 26 12 13 14 15 16 17 18 19 20 21 22

3 4 5 6 7 8 9 10 11 12 13 1 4 5 7 8 9 10 112

14

T-MODE SWITCH

SHIFT SWITCH

MODE SWITCH

D4

D4 INDICATOR LAMP

D4

D3

P

R

N

2

1

A/T GEAR POSITIONINDICATOR

SHIFT INDICATOR

E N G I N E C O N T R O L M O D U L E ( E C M )

VEHICLE SPEEDSENSOR

THROTTLEPOSITIONSENSOR

DATA LINKCONNECTOR (DLC)

IGNITIONSWITCH

BATTERY

2ND CLUTCHPRESSURE SWITCH

BRAKE LAMPS

BRAKE SWITCH

IGNITIONCOIL

MULTIPLEXCONTROLUNIT

COUNTERSHAFTSPEED SENSOR


LOCK-UPSOLENOID

SHIFTSOLENOID 'C'

SHIFTSOLENOID 'B'

SHIFTSOLENOID 'A'

A/T PRESSURE CONTROLSOLENOID 'B'

A/T PRESSURE CONTROLSOLENOID 'A'

TRANSMISSIONCONTROLMODULE(TCM)

P R N 2 1D3

A12

A25

A23

B20

B4

B7

B18

B19

B5

A13

A26

A14

A21

A20

A19

A10

A11A4

A9

A8

A7

A6

A17

B13

B16

B15

B14

B12

A5

A22

B8

B9

B17

B10

A15

A16

A2

A3

B22

B11

B21

B1

BACK-UP B+

5 VOLT REFERENCE

TPS 5 VOLT SUPPLY

TPS SIGNAL

TPS GROUND

SEAF TRANSMISSION DATA OUTPUT

SEFA PGM-FI DATA INPUT

VSS INPUT

GROUND

GROUND

GROUND

#32 100 AMPFUSE(UNDER HOOD

FUSE BOX)

#14 15 AMPFUSE(UNDER DASH

FUSE BOX)

#43 7.5 AMP FUSE(UNDER HOOD FUSE BOX)

#33 50 AMPFUSE(UNDER HOOD

FUSE BOX)

26 PIN 22 PIN

TCM CONNECTOR TERMINAL LOCATIONS



30



TROUBLESHOOTING GUIDE

PROBABLE CAUSE LIST

ELECTRONIC DEVICE FAMILY TORQUE CONVERTER FAMILY

TRANSMISSION FAMILY

HYDRAULIC CONTROL FAMILY

13 3rd clutch pressure switch defective (ACCORD ONLY)



31




SYMPTOM CHECK THESE ITEMS ON THEPROBABLE CAUSE LIST

CHECK THESE ITEMSON THE NOTES LIST

5, 13, G, J, P, Q, g, h



32




PROBABLE CAUSE LIST

ELECTRONIC DEVICE FAMILY TORQUE CONVERTER FAMILY

TRANSMISSION FAMILY

HYDRAULIC CONTROL FAMILY

13 3rd clutch pressure switch defective (ACCORD ONLY)



33




Flush transmission cooler

NOTES



34



A/T GEAR POSITION SWITCH

1

10

2 34 5 6 7

8 9

GEARPOSITION

TERMINAL 1 2 3 4 5 6 7 8 9 10

P

R

N

D4

D3

2

1

CONNECTOR VIEWOF A/T GEAR

POSITION SWITCH

BATTERY

A/T GEAR POSITION SWITCH CONTINUITY CHECK CHART



35



OIL PRESSURE CHART

ACCORD BAXA/PRELUDE M6HA

SELECTOR

LEVER

POSITION

GEAR PRESSURE

PORT

PRESSURE

IN

PSI

N or P N or P LINE (A)

1

D3 or D4

D4

FIRST 1ST CLUTCH (B)

SECOND 2ND CLUTCH (C)

THIRD 3RD CLUTCH (D)

FOURTH 4TH CLUTCH (E)

4TH CLUTCH (E)R REVERSE

120-130

CONDITIONS

ENGINE @ 2000 RPM

ENGINE @ 2000 RPM, WHEELS FREE





2

120-130

120-130

120-130

120-130

120-130

2ND CLUTCH PRESSURE(MARKED WITH A "C")

LINE PRESSURE(MARKED WITH AN "A")

TCC/SHIFT SOLENOID "A"ASSEMBLY

A/T GEARPOSITION SWITCH

4TH CLUTCH PRESSURE(MARKED WITH AN "E")

1ST CLUTCH PRESSURE(MARKED WITH A "B")

3RD CLUTCH PRESSURE(MARKED WITH A "D")



36



FLUID LEVEL & CAPACITY

NOTE: Use of a fluid other than the recommended fluidmay cause shift quality concerns.If this is so, a friction modifier added to this fluid may benecessary.



37



TRANSMISSION REMOVAL



38




(PRELUDE ONLY)

NOTE: Accords will have a3rd Clutch Pressure Switch to disconnect as well.



39






40






41






42



TRANSMISSION DISASSEMBLY

END COVER & IDLER GEARS

ACCORD BAXA



43





PRELUDE M6HA



44





PRELUDE M6HA LEGEND



45






TRANSMISSION HOUSING

ACCORD BAXA

46







PRELUDE M6HA

FEED PIPESCONTAIN FILTER SCREENS

47







PRELUDE M6HA LEGEND

48






TRANSMISSION HOUSING REMOVAL

49






VALVE BODY

ACCORD BAXA

50






VALVE BODY

PRELUDE M6HA

51






VALVE BODY

PRELUDE M6HA LEGEND

52





VALVE BODY DISASSEMBLY, INSPECTION & REASSEMBLY

ACCORD BAXA & PRELUDE M6HA

53







PUMP CLEARANCE

54







MAIN VALVE BODY

55







MAIN VALVE BODY

No.

1 Lock-up Control Valve Spring

Servo Control Valve Spring

Reverse CPC Valve Spring

Spring

Modulator Valve Spring

Shift Valve C SpringShift Valve D Spring

Shift Valve E Spring

Lock-up Shift Valve Spring2

3

45

6

7

8

Standard (New) mm (in.)

Wire Diameter O.D. Free Length No. of Coils

0.7 (0.028) 42.9 (1.689) 14.2

0.9 (0.035)

6.6 (0.260)

63.0 (2.480) 22.4

0.7 (0.028)

7.6 (0.299)

32.2 (1.268) 13.4

0.7 (0.028)

6.6 (0.260)

35.7 (1.406) 17.20.8 (0.031)

1.6 (0.063)

0.7 (0.028)

0.7 (0.028)

6.6 (0.260)6.6 (0.260)

10.4 (0.409)

6.1 (0.240)

49.1 (1.933)

17.8 (0.701)

35.7 (1.406)

21.7

9.8

7.9

17.2

9

10

Converter Check Valve Spring

Cooler Check Valve Spring

1.1 (0.043)

0.6 (0.024)

6.6 (0.260)

8.4 (0.331)

5.8 (0.228)

33.5 (1.319)

38.2 (1.504)

14.5 (0.571) 6.8

14.0

56





No.

1 Regulator Valve B Spring

Spring

Lock-up Timing Valve Spring

Relief Valve Spring

Stator Reaction Spring

Regulator Valve A Spring2

3

4

5



1.6 (0.063) 9.2 (0.362) 44.0 (1.732) 14.0

1.9 (0.075) 14.7 (0.579) 77.4 (3.047) 15.2

4.5 (0.177) 35.4 (1.394) 30.3 (1.193) 1.92

1.9 (0.035) 6.6 (0.260) 39.8 (1.567) 20.4

0.65 (0.026) 6.6 (0.260) 34.8 (1.370) 15.6



REGULATOR VALVE BODY

MAKE CERTAIN THISORIFICE IS CLEAR

57







SERVO VALVE BODY

No.

1 Shift Valve B Spring

4th Accumulator Spring (PRELUDE)

4th Accumulator Spring (ACCORD)

Spring

3rd Accumulator Spring (PRELUDE)

3rd Accumulator Spring (ACCORD)

CPC Valve B Spring

CPC Valve A Spring

Shift Valve A Spring2

3

4

5

6

7

8



0.8 (0.031) 7.1 (0.280) 40.4 (1.591) 16.9

0.8 (0.031) 7.1 (0.280) 40.4 (1.591) 16.9

0.7 (0.028) 6.1 (0.240) 17.8 (0.701) 7.9

0.7 (0.028) 6.1 (0.240) 17.8 (0.701) 7.9

3.8 (0.150)

3.5 (0.138)

3.8 (0.150)

3.5 (0.138)

19.6 (0.772)

19.6 (0.772)

19.6 (0.772)

19.6 (0.772)

59.8 (2.354)

61.7 (2.429)

59.8 (2.354)

61.7 (2.429)

61.7 (2.429)

7.8

9.6

7.8

9.6

58






ACCORD BAXA

ACCUMULATOR VALVE BODY

No.

1

2nd Accumulator Spring A

2nd Accumulator Spring B

Spring

1st Accumulator Spring A

1st Accumulator Spring B

2

3

4



2.5 (0.098)

2.6 (0.102)

2.7 (0.106)

2.6 (0.102)

12.8 (0.504)

19.6 (0.772)

14.8 (0.583)

21.6 (0.850)

49.5 (1.949)

69.7 (2.744)

51.0 (2.008)

73.2 (2.882)

8.5

10.8

9.6

10.0

59






PRELUDE M6HA

ACCUMULATOR VALVE BODY

No.

1

2nd Accumulator Spring A

2nd Accumulator Spring B

Spring

1st Accumulator Spring

2

3



3.5 (0.138)

2.6 (0.102)

2.8 (0.110)

19.6 (0.772)

14.4 (0.567)

21.6 (0.850)

61.7 (2.429)

51.0 (2.008)

68.2 (2.685)

9.6

11.0

8.9

60





DISASSEMBLY, INSPECTION & REASSEMBLY


MAINSHAFT

2000-01

ACCORD

ONLY

LUBRICATION

PITOT

FLANGE

IDLER

GEAR

TRANSMISSION

HOUSING

BEARING

61







MAINSHAFT CLEARANCE

62







COUNTERSHAFT

63







SECONDARY SHAFT

64







SECONDARY SHAFT CLEARANCE

65







SECONDARY SHAFT CLEARANCE

No. Part No. (Accord) ThicknessPart No. (Prelude)

4.90mm (0.193 in)90406-P6H-00090406-POZ-0001

2 90407-POZ-000 90407-P6H-000 4.95mm (0.195 in)

3 90408-POZ-000 90408-P6H-000 5.00mm (0.197 in)

4 90409-POZ-000 90409-P6H-000 5.05mm (0.199 in)

5 90410-POZ-000 90410-P6H-000 5.10mm (0.201 in)

6 90411-POZ-000 90411-P6H-000 5.15mm (0.203 in)7 90412-POZ-000 90412-P6H-000 5.20mm (0.205 in)

NOTE: The chart above contains the part numbers for the 37x55mm

thrust shim for both the ACCORD and the PRELUDE.

Be sure to order the correct thrust shim for the application you

are working on.

66







1ST/2ND CLUTCH ASSEMBLIES

1.6mm (0.063 in.)

PRELUDE w/6 Frictions

2.3mm (0.091 in.)

ACCORD w/5 Frictions

The 1st clutch piston

does NOT use a reed valve

The 2nd clutch piston

does NOT use a reed valve

67







3RD/4TH CLUTCH ASSEMBLIES

The 3rd clutch piston

DOES use a reed valve

The 4th clutch piston

DOES use a reed valve

68







CLUTCH DRUM ASSEMBLIES

69








70








71








5. Reverse disassembly procedure for assembly.

72








CLUTCH SERVICE LIMIT

1st2nd (Prelude)

2nd (Accord)

1.15 - 1.35 mm (0.045 - 0.053 in.)

3rd4th

1.0 - 1.2 mm (0.039 - 0.047 in.)

0.7 - 0.9 mm (0.028 - 0.035 in.)

0.6 - 0.8 mm (0.024 - 0.031 in.)0.4 - 0.6 mm (0.016 - 0.024 in.)

73








74







DIFFERENTIAL

COMPONENTS BACKLASH INSPECTION

75







DIFFERENTIAL

BEARING REPLACEMENT DIFFERENTIAL CARRIER REPLACEMENT

76







DIFFERENTIAL

TAPERED ROLLER BEARING PRELOAD ADJUSTMENT

77







DIFFERENTIAL

78







DIFFERENTIAL

TAPERED ROLLER BEARING OUTER RACE

79







AXLE SEALS

80







TRANSMISSION CASE & HOUSING BEARINGS

81








82





83




NOTE:

After bearings are installed, make certain there is no

up and down movement of the bearings in the case,

if there is movement, the case will require replacement.





84



PARK MECHANISM





85

TRANSMISSION REASSEMBLY






86







87







88







89







90







91



NOTE: For 2000 and later models, install the pitot flange on the mainshaft idler gear, then install the lubrication pitot pipe

and the pitot pipe on the transmission housing.

LUBRICATION PITOTPIPE

PITOT PIPE

PITOT FLANGE

6 x 1.0 mm

12 N-m(1.2 kgf-m)

(8.7 lb. ft.)



92









93







94



CONVERTER & DRIVE PLATE





95

TRANSMISSION INSTALLATION








96







97







98







99

MAINSHAFT

SPEED

SENSOR

A/T CLUTCH

PRESSURECONTROL

SOLENOIDS

A & B

HARNESS

CLAMPS

3RD CLUTCHPRESSURE

SWITCH

HARNESS

CLAMPS

GROUND

CABLE





100



COOLER LINE CONNECTIONS



101AUTOMATIC TRANSMISSION SERVICE GROUP


SPECIFICATIONS

ACCORD BAXA





SPECIFICATIONS

ACCORD BAXA





SPECIFICATIONS

ACCORD BAXA





SPECIFICATIONS

ACCORD BAXA





SPECIFICATIONS

ACCORD BAXA

105





106

SPECIFICATIONS

PRELUDE M6HA





SPECIFICATIONS

PRELUDE M6HA





SPECIFICATIONS

PRELUDE M6HA

108





SPECIAL TOOLS

ACCORD BAXA/PRELUDE M6HA

109

TOOL NUMBERREFERENCE NUMBER DESCRIPTION QUANTITY



HONDA ACCORD1998 & LATER WITH BAXA/MAXA TRANSMISSION

DELAY IN REVERSE AND 1-2 BIND-UPHARSH DRIVE ENGAGEMENT

COMPLAINT:

CAUSE:

CORRECTION:

The transmission has been overhauled, and after the transmission is installed back intothe vehicle, the transmission delays in reverse and binds up on the 1-2 shift. A harshengagement into drive will also occur.

During the installation of the transmission the connectors for shift solenoids "B" and"C" were switched with the connectors for A/T Clutch Pressure Control solenoids "A"and "B".These connectors are identical in configuration (Refer to Figures 2 & 3) which permits

the cross connection of these solenoid connectors causing the above complaints.

When reconnecting these solenoid connectors, use the chart in figure 1 to insure thecorrect solenoid connections have been made.

NOTE: There are other Honda/Acura transaxles that are very similar to theBAXA/MAXA, causing the same possibility of cross connecting Shift Solenoid "A"and "B" connectors with A/T Clutch Pressure Control Solenoid connectors, these arelisted below:

B7XA...................................................................................1998-01 Honda Accord V6 M6HA......................................................................................1997-01 Honda Prelude

MDWA.................................................................1997-98 Honda Odyssey/Isuzu Oasis B7TA/B7YA.............................................................................1999-01 Honda Odyssey M7ZA...........................................................................................1996-99 Acura 3.0CL B6VA............................................................................................1998-99 Acura 2.3CL M7WA..........................................................................................1999-01 Acura 3.2TL

SOLENOID CONNECTOR WIRE COLORS

A/T CLUTCH PRESSURE CONTROL SOLENOID "A" WHITE AND RED

A/T CLUTCH PRESSURE CONTROL SOLENOID "B" GREEN AND ORANGE

SHIFT SOLENOID "B" GREEN/WHITE AND BLACK

SHIFT SOLENOID "C" GREEN AND BLACK

Figure 1

HONDA ACCORD L4 WITH BAXA/MAXA - SOLENOID CONNECTOR WIRE COLORS



110



HONDA ACCORD1998 & LATER WITH BAXA/MAXA TRANSMISSION

DELAY IN REVERSE AND 1-2 BIND-UPHARSH DRIVE ENGAGEMENT

1 2

1 2

1 2

1 2

SHIFTSOLENOID

"B"

SHIFTSOLENOID

"C"

SHIFTSOLENOID "B"CONNECTOR

SHIFTSOLENOID "C"CONNECTOR

A/T CLUTCH PRESSURECONTROL SOLENOID

"B"


"A"

A/T CLUTCH PRESSURE

CONTROL SOLENOID"A"

CONNECTOR


"B"CONNECTOR

SHIFT SOLENOIDS "B" & "C" CONNECTORS HAVE SAME CONFIGURATION AS A/T CLUTCH PRESSURE CONTROL SOLENOIDS "A" & "B"

A/T CLUTCH PRESSURE CONTROL SOLENOIDS "A" & "B" CONNECTORS HAVE SAME CONFIGURATION AS SHIFT SOLENOIDS "B" & "C"

Figure 2

Figure 3



111



Notes

Documents

ATSG Honda BAXA MAXA M6HA