EEPROM Programming

***FOR UPDATED INFORMATION NOT INCLUDED HERE, REFER TO TECHNICAL SERVICE BULLETIN 53-65-08, DATED JANUARY, 1996***

EEPROM PROGRAMMING PROCEDURE

CAUTION: The software/calibration used for Powertrain Control Module (PCM) reprogramming must match the vehicle application, or improper operation and/or vehicle damage may occur.

^ Battery is charged.
^ Ignition is "ON."
^ Connections to the Data Link Connector (DLC) and battery/cigar lighter secure.
^ Follow the most current GM Techline terminal/equipment instructions.

PCM FAILS TO PROGRAM
If the PCM fails to program, or if Diagnostic Trouble Code (DTC) 51 sets during programming:

^ Check all PCM connections.
^ Check Techline terminal/equipment for latest software version.
^ Repeat reprogramming procedure. If it fails again, replace the PCM. The replacement PCM must be programmed.