GM Service Manual Online
For 1990-2009 cars only
  1. Take the following steps in order to set-up for the EEPROM Programming.
  2. • The battery is charged.
    • The ignition is ON.
    • The battery and cigarette lighter connection is secure.
    • The Data Link Connector (DLC).
  3. Refer to up-to-date Techline terminal and equipment user's instructions.
  4. If the VCM fails to program, do the following functions:
  5. • Check all the VCM connections.
    • Check the Techline terminal and equipment for the latest software version.
    • Try again to program the VCM. If it fails again, replace the VCM. Refer to VCM Replacement/Programming .
  6. Perform the IAC valve reset procedure with the scan tool. Use misc. test.
  7. For a functional check perform one of the steps:
  8. • Use the Techline terminal and equipment in order to perform the Powertrain On-Board Diagnostic (OBD) System Check or
    • Refer to the Powertrain On Board Diagnostic (OBD) System Check .