ECM Replacement

WARNING: This page is about a different car, the 2013 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

If the engine control module (ECM) is replaced, the following procedures must be performed:

ECM Reprogramming-Refer to Service Programming System (SPS) .
Theft Deterrent-Refer to Immobilizer System Component Programming (without ATH) , Immobilizer System Component Programming (with ATH) .
Brake Pedal Position Sensor Learn-Refer to Brake Pedal Position Sensor Learn .
The CKP System Variation Learn-Refer to Crankshaft Position System Variation Learn .
The Throttle/Idle Learn procedure-Refer to Q38 Throttle Body: Throttle/Idle Learn .
Engine Oil Life Remaining-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was replaced.
Transmission Fluid Life Remaining-When available, use the scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was replaced.