GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1997 🢒 Sonoma Pickup - 4WD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 EEPROM Programming
  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).
  2. Refer to up-to-date Techline terminal and equipment user's instructions.
  3. If the VCM fails to program, do the following functions:
    4. • 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.

    Notice: The ignition should always be OFF when installing or removing the VCM connectors in order to prevent damage.

  4. Perform the IAC valve reset procedure with the scan tool. Use misc. test.
  5. For a functional check perform one of the steps:
    6. • Use the Techline terminal and equipment in order to perform the On-Board Diagnostic (OBD) System Check
    • Refer to Powertrain On Board Diagnostic (OBD) System Check .