Programming Powertrain Control Module
NOTE:
If the PCM and the Sentry Key Immobilizer Module (SKIM) are replaced at the same time, program the VIN into the PCM first. All vehicle keys will then need to be replaced and programmed to the new SKIM. See PROGRAMMING SENTRY KEY IMMOBILIZER MODULE .
NOTE:
The Sentry Key Immobilizer System (SKIS) secret key data is an identification code that is unique to each SKIS. This code is programmed and stored in the PCM, SKIM and ignition key transponder chip. When replacing the PCM it is necessary to program the secret key data into the PCM.
NOTE:
PCM and the Transmission Control Module (TCM) are incorporated into one control module. After replacing PCM, reprogram pinion factor and perform shift quality quick learn procedure. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
- To program PCM, connect DRBIII® to Data Link Connector (DLC). DLC is located below instrument panel, near steering column. See Fig 1. Place transmission in Park or Neutral. Turn the ignition on, with the engine off.
- Using DRBIII®, select THEFT ALARM, SKIM then MISCELLANEOUS.
- Select PCM REPLACED.
- Enter secured access mode by entering the vehicle four-digit PIN.
- Press ENTER to transfer the secret key (the SKIM will send the secret key to the PCM).
NOTE:
If 3 attempts are made to enter the secure access mode using an incorrect Personal Identification Number (PIN), secured access mode will be locked out for one hour (the vehicle will still run). To exit this lockout mode, turn the ignition to the RUN position for one hour then enter the correct PIN. (Ensure all accessories are turned off. Also, monitor the battery state and connect a battery charger if necessary).