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Makes 🢒 Pontiac 🢒 2006 🢒 GTO 🢒 Bulletins 🢒 No Crank After Reprogramming ECM - keywords P0633 P1629 BCM ECM ecm immobilizer link module PCM PIM stall start

No Crank After Reprogramming ECM - keywords P0633 P1629 BCM ECM ecm immobilizer link module PCM PIM stall start

Subject: No Crank after Reprogramming ECM

Models:2005-2006 Pontiac GTO


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

No crank after reprogramming an Engine Control Module (ECM) / Powertrain Control Module (PCM).

Recommendation/Instructions:

After reprogramming the ECM, it is necessary to link the ECM to the PIM using the following procedure:

  1. First link the BCM to the PIM using the scan tool.
  2. Then link the ECM to the PIM using pass through programming.

If this procedure was not followed then the ECM will have to be reprogrammed again before the ECM and PIM can be linked with the procedure above.

Note:: You must use pass-through programming when linking the ECM to the PIM.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.