ENER-vative PCM VATS AND PASSKEY RELEARN

Replacement of the ECM is not difficult—

disconnect the electrical connectors from the

ECM and replace with the new ECM. Important

Note: if your ECM failed because of an electrical

issue, the new one may also. Find and remedy the

issue before replacing the ECM to avoid another

expensive mistake. There are no refunds on

ECM’s, for obvious reasons out of our control.If

this ECM originally came from your vehicle, it

should work without a relearn procedure.

Otherwise, IF YOU ARE INSTALLING OUR

ECM, YOU MUST FOLLOW THIS

PROCEDURE ONCE INSTALLED TO START

THE VEHICLE.

LBZ/LMM PCM SHOWN

Passkey Security (VATS) Relearn Procedure

01-10

NOTE: The accessory key position is never used in this procedure. If at any time the

vehicle starts and runs normally, you can skip the remaining steps. You are done.

1. Disable your headlamps (parking brake apply, don’t remove any relays or fuses).

2. Attempt to start the vehicle. Vehicle may or may not 'fire' and quit. Release to “run”

position. Some vehicles will not engage the starter. This is normal. DO NOT TURN

OFF KEY YET !!

3. Leave the key in the "on" or “run” position, until the 'security' light goes out or quits

alternately flashing between "Security" and "Battery". This relearn period always takes

10 minutes.

4. After security light off, turn the key to “OFF: Wait 5 seconds.

5. Repeat the above procedure (steps 2 through 4) 2 additional times for a total of 3

start-relearn-attempts, remembering to turn the key to “OFF” (not run) between

each 10 minute relearn procedure. On the third cycle, it will ignore the VIN differences

in the various modules and will start. THIS WILL TAKE 30 MINUTES--NO LESS.

If the 4th start attempt fails to start the vehicle you did one relearn step (or all of them

incorrectly). If you left your headlamps on until the battery went dead and voltage

dropped below 10.5 volts, charge them before proceedng!!

LMM 07.5-10 INJECTOR INFORMATION

FUEL INJECTOR FLOW RATE PROGRAMMING

CIRCUIT / SYSTEM DESCRIPTION

These ECM’s have some special considerations when it comes to fuel injector flow rate

programming. Each injector’s flow rate information and cylinder position are stored in

the memory of both the glow plug control module (GPCM) and the ECM. The fuel

injector flow rate programming typically needs to be done when any of the following

procedures are performed:

The ECM is replaced

The GPCM is replaced

A fuel injector is replaced

If you have received a replacement ECM with factory programming from us, then the

flow rate information has not been programmed, as this information is not in any GM

database. Your dealer can retrieve this data from the GPCM, as can any mechanic with a

tech 2. If the flow rate numbers are not available from either control module, the

numbers will need to be retrieved from each individual injector. However, you may have

no problems skipping this process, as the programming we provide has disabled the

diagnostic associated with it. Determine for yourself if you want to have this done. The

procedures to take care of this are provided here.

PROCEDURES FOR FUEL INJECTOR FLOW RATES

CIRCUIT / SYSTEM VERIFICATION: Review the Display ECM & GPCM Injector

Flow Rates parameter with a scan tool. All cylinders should be programmed with a flow

rate number. Both the GPCM and the ECM should be programmed with the same flow

rate numbers for the corresponding cylinders.

CIRCUIT / SYSTEM TESTING: 1. With the tech 2 scan tool installed, enter the vehicle information and select the

following options: Special Functions/Fuel System/Injector Flow Rate

Programming/Display ECM & GPCM Injector Flow Rates

2. Record all flow rate numbers with the corresponding cylinders from the control

modules.

3. If any injectors have been replaced, go to Reprogram Injector Flow Rates parameter

and enter the flow rate number of the new injector to the corresponding cylinder. The

flow rate numbers of the new injector to the corresponding cylinder. The flow rate

numbers will automatically update both control modules.

IMPORTANT: When installing a new fuel injector, ensure that the IQA data number

from the yellow IQA Data Tag, shipped with the new injector, is programmed to the

correct cylinder

If the ECM was replaced: go to Copy GPCM Flow Rates to ECM parameter and

reprogram the ECM. This will update the ECM with the GPCM flow rate numbers.

If the GPCM was replaced: or the flow rate numbers are not the same for both

modules, go to Copy ECM Flow Rates to GPCM parameter and reprogram the GPCM.

This will update the GPCM with the ECM flow rate numbers.

If both control modules were replaced: go to Reprogram Injector Flow Rates

parameter and enter the previously recorded flow rate numbers or the numbers retrieved

from each individual injector, to the corresponding cylinders.

NOTE: If replacing a PCM with a GM SPO replacement part, after programming, these

modules will learn the incoming fuel continue password immediately upon receipt of a

password message. Once a password message is received, and a password is learned, a

learn procedure must be performed to change this password again. A PCM which has

been previously installed in another vehicle will have learned the programming to learn

the current vehicle password.

WHEN TO RE-LEARN? Use this procedure after replacing any of the following:

The Passlock™ sensor

The BCM

The PCM with a used ECM (new ECM may not require the procedure)

RE-LEARN PROCEDURES There are 2 available methods to perform the programming procedure:

A 10-minute procedure which required a Tech 2 and a techline terminal.

A 30-minute procedure which does not require a tech 2.

TECH 2 LEARN PROCEDURE 1. Connect the Tech 2 to the vehicle.

2. Select Request VTD Info. for SPS under Special Functions in the Body Control

Module menu.

3. Disconnect the Tech 2 from the vehicle and connect it to a techline terminal.

4. On the techline terminal, select Theft Module Re-Learn under Service Programming.

5. Disconnect the Tech 2 from the techline terminal and connect it to the vehicle.

6. Turn ON the ignition, with the engine OFF.

7. Select VTD Re-Learn under Service Programming.

8. Attempt to start the engine, then release the key to ON, vehicle will not start.

9. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn

OFF. The vehicle is not ready to relearn the Passlock™ Sensor Data Code and/or

password in the next ignition switch transition from OFF to CRANK.

10. Turn OFF the ignition, and wait 5 seconds

11. Start the engine, the vehicle has not learned the password.

12. With the Tech 2 scan tool, clear any DTC’s

30-MINUTE SECURITY (VATS) RELEARN PROCEDURE (no tech 2 required)

Note: the accessory key position is never used in this procedure

1. Turn ON the ignition, with the engine OFF.

then

2. Attempt to start the engine (vehicle will not start) then release the key to ON,. Do not

turn the key backwards, just release it.

3. Observe the SECURITY (padlock symbol) light. After exactly 10 minutes, it will turn

OFF.

4. Turn OFF the ignition and wait 5 seconds

5. Repeat steps 2 through 4 two more times for a total of 3 cycles/30 minutes. The

vehicle is now ready to relearn the Passlock™ Sensor Data Code and/or passwords on the

next ignition switch transition from OFF to CRANK.

6. Start the engine. The vehicle has not learned the Passlock™ Sensor Data Code and/or

password. The vehicle learns the Passlock™ Sensor Data Code and/or password on the

next ignition switch transition from OFF to CRANK. You must turn the ignition OFF

before attempting to start the vehicle.

FOLLOWUP: If you have any trouble, common mistakes are not following the

procedure exactly, and low battery voltage. It is ok to do the procedure with a battery

charger attached. But never install an ECM this way.

Usually, all issues are resolved by re-reading and following the procedures exactly.

Contact us at tech@killerbeeperformance.com if you are unable to resolve your issue.