TransGo 2006

Clutch, Band & Solenoid Application Chart Overdrive

Clutch Overrun Roller Clutch

Forward Clutch

Direct Clutch

Intermediate Band

Low/Reverse Band

Low Roller

Park

Reverse Applied Applied

Neutral

Overdrive 1st Speed

Locked Applied Locked

Overdrive 2nd Speed

Locked Applied *OR

Overdrive 3rd Speed

Locked Applied Applied *OR

Drive 1st Speed

Locked Applied Locked

Drive 2 2nd Speed

Locked Applied Applied *OR

Manual Low (1) Locked Applied Applied Locked

*OR = Overrunning Applied** = Applied but ineffective

Overrun Clutch

Applied

Applied

Applied

Overdrive 4th Speed

Applied *OR Applied Applied *OR

Drive 2nd Speed

Applied Locked Applied *OR

Drive 3rd Speed

Applied Locked Applied Applied *OR

Drive 2 1st Speed

Applied Locked Applied *OR

Intermediate Sprag

Locked

*OR

*OR

Locked

*OR

Locked

Intermediate Clutch

Applied

Applied**

Applied**

Applied

Applied**

Applied

Shift Sol A

On

On

On

On

Off

Off

On

On

Off

Off

On

Off

On

Shift Sol B

Off

Off

Off

Off

Off

On

On

Off

Off

On

Off

Off

Off

4L80EGeneral Reference Data

Trans Basic Operation: The 4L80E is a RWD 4 speed unit with TCC. Shift delay, shift feel, and TCC are all electronically controlled by TCM through the use of solenoids mounted on the valve body. Originally designated the 4L80E, other similar model variations are designated as 4L80E-HD, and 4L85E.

Back

Cooler return: Bottom/Front fitting on 91-96 models OR Rear Fitting on 97up models

Mainline Pressure Tap Idle Drive 42-65 Max 165-185 Idle Reverse 120-125 Max 280-305

Input Speed Sensor

Output Speed Sensor

Electrical Connector

Turns

Hold Shaft

Intermediate Sprag Low Roller Turns

Hold Support

Electrical Data Next Page

TransGo 2006

4L80EGeneral Reference Data

Terminal ID 1st Design

Terminal ID 2nd Design

Function Resistance

A A Shift Solenoid A Control (Ground) 20-30

B B Shift Solenoid B Control (Ground) 20-30

C E 12v Supply NA

D N Range Switch A NA

E R Range Switch B NA

F P Range Switch C NA

G L Temp Sensor High 3.5k-4k @ 70F

180-250 @200F H M Temp Sensor Low

J S PWM (TCC) Solenoid Control (Ground) 11-15

K Not Used 12v Supply

L C Force Motor (High)

M D Force Motor (Low)

4.5-6.0

A

C D E

G

M

F

H

L K

J

B

1st Design Case Connector 1991-1993 Flat Blade Terminal Design

A

B C

D

E

L

M

N

P

R

S

2nd Design Case Connector 1993 up Round Pin Terminal Design

Electrical Notes/Data: 1st design (flat blade type terminals) connector had 12 wires including 2 separate 12v supply wires. The 1st design internal harness was discontinued and must be serviced with the 2nd design which also requires a new pigtail to be spliced onto the vehicle harness in place of the original. The 2nd design internal harness uses only a single 12v supply instead of 2 separate ones like the 1st design. When converting a vehicle from 1st design to 2nd design, one of the 12v supply wires (Terminal K) is not used. As a result of the 12v supply consolidation, the 2nd design uses only 11 wires. When comparing the 1st and 2nd designs, the terminal letter designations were changed as well as the locations.

= Checkball