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Control Pilot Circuit Testing

  1. Ignition OFF, disconnect the X1 harness connector at the P36 battery state of charge indicator.
  2. Test for less than 10 Ω between the low reference terminal C and ground.
    • If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the K114B hybrid powertrain control module 2.
  3. Disconnect the cordset for at least 10 seconds. While Connecting the cordset and starting the vehicle high voltage battery charging, verify that a test lamp illuminates between the control pilot signal terminal A and ground during the first 5 seconds of the vehicle charging starting.
    • If the test lamp does not illuminate, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K114B hybrid powertrain control module 2.
  4. If all circuits test normal, replace the P36 battery state of charge indicator.
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