Service Information

Cruze

Immobiliser System Component Programming - without BTM

This procedure will learn the immobiliser function and require more than 15 minutes to complete. If the battery voltage is low, charge the battery before proceeding with the learn. If the body control module (BCM) or engine control module (ECM) have been replaced, they must be programmed before performing this learn procedure.

Depending on the immobiliser function being learned or the component replaced, different learn functions are required to be performed. These learn functions are as follows:

Function	ECU	Keys	Function description	When the Function Should Be Used	Notes
Program Transponder & Remote Key	--	--	All existing vehicle keys will be invalidated and any desired keys are relearned	All vehicle keys are desired to be invalidated and certain keys relearned or a diagnostic has instructed to perform the learn	-
Program Immobiliser Function	BCM (Body Control Module)	Use Existing Transponder-Keys	The BCM will relearn the immobiliser passwords and data while reusing the existing vehicle keys	The BCM has been replaced and the existing vehicle keys are being reused or a diagnostic has instructed to perform the learn	-
Program Immobiliser Function	BCM (Body Control Module)	Use New Transponder-Keys	The BCM will relearn the immobiliser passwords and data while using new vehicle keys	The BCM has been replaced and new vehicle keys are being used	-
Program Immobiliser Function	BCM (Body Control Module) and ECM (Engine Control Module)	-	The ECM and BCM will learn new immobiliser passwords and data	Both the ECM and BCM have been replaced (this selection will REQUIRE new vehicle keys be used)	Because both the ECM and BCM have been replaced and are learning new immobiliser passwords and data, all vehicle keys must also be replaced
Program Immobiliser Function	ECM (Engine Control Module)	-	The ECM will relearn the immobiliser passwords and data	The ECM has been replaced or a diagnostic has instructed to perform the learn	-

Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) .
Turn ON the ignition, with the engine OFF.
Ensure that all power consuming devices are turned OFF on the vehicle.
Select SPS application and follow the onscreen instructions.
Select Reprogram ECU.
Select IMMO Immobiliser Learn.
Select the appropriate programming function based on the component that was replaced or is being programmed. Refer to the table at the top of this document for assistance in choosing the correct programming function.
Follow the on-screen instructions.
With a scan tool, clear any DTCs.