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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the battery current sensor.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the low reference circuit terminal B and ground.
    • If the greater than the specified range, test the low reference circuit for an open/high resistance the circuit tests normal replace the IPM.
  3. Ignition ON, test for 10 volts between the battery current sensor supply voltage circuit terminal A and ground.
    • If less than the specified range, test the battery current sensor supply voltage circuit for a short to ground or an open/high resistance. If the circuit test normal replace the IPM.
  4. Test for 10 volts between the battery current sensor signal circuit and ground.
    • If less than 10 volts test the battery current sensor signal circuit terminal C for a short to ground or an open/high resistance. If the circuit test normal replace the IPM.
  5. If all circuits test normal test or replace the battery current sensor.
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