GM Service Manual Online
For 1990-2009 cars only

The following service procedures require either a programming or a setup event performed for a complete repair.

ECM Replacement

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

  1. ECM Reprogramming--Refer to Service Programming System (SPS) .
  2. Idle Learn Procedure--Refer to Idle Learn .
  3. 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.
  4. 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.

ECM Reprogramming

    • If the engine control module (ECM) needs to be reprogrammed, refer to Service Programming System (SPS) .
    • 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 reprogrammed.

Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, an Idle Learn Procedure must be performed. Refer to Idle Learn .

    • Throttle body assembly
    • ECM