GM Service Manual Online
For 1990-2009 cars only

The replacement PCM must be reprogrammed and the crankshaft position system variation learn procedure must be performed. Refer to the following procedures:

    • Latest Techline information on PCM re-programming
    • CKP System Variation Learn Procedure
    • Password Learn Procedure

See the Introduction in Powertrain Control Module Description for 2.4L or Powertrain Control Module Description for 2.2L for more information on using the diagnostic functions of the PCM.