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Idle Learn Procedure

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT:
    • Ensure the above conditions are met before proceeding with this procedure.
    • Do not perform this procedure if a TP sensor or other TAC system DTCs are set other than P2176. The ECM will not perform the idle learn procedure with a DTC set.
  1. Turn OFF the ignition for 30 seconds.
  2. Turn ON the ignition, with the engine OFF for 60 seconds.
  3. Turn OFF the ignition.
  4. Turn ON the ignition, with the engine OFF.
  5. Clear the DTCs with a scan tool.
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