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Circuit/System Testing

    WARNING:

    Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

    The High Voltage Disabling procedure will perform the following tasks:

    • Identify how to disable high voltage.
    • Identify how to test for the presence of high voltage.
    • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

    Failure to follow the procedures exactly as written may result in serious injury or death.

  1. Perform the High Voltage Disabling procedure for servicing the T6 Power Inverter Module or T12 Transmission.
  2. Disconnect the X8 harness connector at the T6 Power Inverter Module.
  3. Test for infinite resistance between each of the AC circuit terminals listed below and ground for each phase of the G5 Transmission Fluid Pump - Electric/Auxiliary:
    • X5 Terminal 1 phase U
    • X5 Terminal 2 phase V
    • X5 Terminal 3 phase W
    • If less than infinite resistance 

      Replace the G5 Transmission Fluid Pump - Electric/Auxiliary.

    • Go to next step: If infinite resistance 
  4. Replace the T6 Power Inverter Module.