PCM Replacement/Programming

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 more information on using the diagnostic functions of the PCM.

EEPROM Programming

1. Set-up--Ensure that the following conditions have been met:
- The battery is fully charged and a battery charger is disconnected.
- The ignition is on.
- The Techline equipment cable connection at the DLC is secure.
2. Program the PCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment users instructions.
3. If the PCM fails to program, proceed as follows:
- Ensure that all PCM connections are OK.
- Check the Techline equipment for the latest software version.
- Attempt to program the PCM. If the PCM still cannot be programmed properly, replace the PCM. You must program the replacement PCM.