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Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify if DTC P2534 is set.
  2. Ignition OFF. remove the drive motor generator control module assembly sight shield.
  3. Disconnect the harness connector X1 at the drive motor generator power inverter module (PIM) assembly.
  4. Ignition ON, test for 4.9-5.1 volts between the contactor signal circuit terminal 4 X1 and ground.
    • If less than the specified range, test the circuit for an open or a short to ground. If the circuit tests normal, replace the drive motor generator battery control module.
    • If greater than the specified range, test the control circuit for a short to voltage. If the circuit tests normal, replace the drive motor generator battery control module.
  5. If all circuits test normal, replace the PIM module.
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