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Home >> Chevrolet >> 2006 >> Uplander Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 230 (Engine Control System - 3.5L - DTC P0442 To DTC P2A01) >> DTC P0650 >> Circuit/System Testing
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Circuit/System Testing

WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the engine control module (ECM) connector that contains the MIL control circuit.
  2. Jumper the MIL control circuit with a J 36169-A  at the ECM connector to a good ground.
  3. Turn ON the ignition with the engine OFF.
    • If the MIL illuminates replace the ECM.
  4. Test the MIL voltage supply circuit for an open or short to ground.
  5. Test the MIL control circuit for a short to voltage or a short to ground.
    • If the all circuits test OK replace the instrument panel cluster assembly.
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