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PCM Programming Set Up With Special Tool

  1. Ensure that the following conditions have been met:
    • The battery is fully charged.
    • The scan tool cable connection at the Data Link Connector (DLC) is secure.
  2. Turn OFF the ignition.
  3. Remove the passenger side floor access panel. See.
  4. Remove the splice pack/star connector shorting bars from both splice pack/star connectors. It may be necessary to remove splice pack/star connectors from the mounting positions.
  5. Install the star connector cable No. 1 from the Serial Data Link Tester to the 12-pin splice pack/star connector. This is the connector with 8 or 10 wires.
  6. Install the star connector cable No. 2 from the Serial Data Link Tester to the 12-pin splice pack/star connector. This is the connector with 4 wires.
  7. Select the star connector cable No. 1 on the Serial Data Link Tester toggle switch.
  8. Select position "B" on the Serial Data Link Tester.
Fig 1: Locating & Identifying Splice Pack/Star Connectors In Passenger Floor Access Panel
G00230116Courtesy of GENERAL MOTORS CORP.
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