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Circuit / System Testing

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  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. If the circuit tests normal replace the BCM.
  3. Ignition ON, test for 4.8-5.2 volts between the battery current sensor supply voltage circuit terminal A and ground.
    • If less than the specified range, test the supply voltage circuit for a short to ground or an open / high resistance. If the circuit test normal replace the BCM.
    • If greater than specified range, test the supply voltage circuit for a short to voltage.
  4. Ignition ON, test for 4.8-5.2 volts between the battery current sensor signal circuit terminal C and ground.
    • If less than the specified range, test the signal circuit for a short to ground or an open / high resistance. If the circuit test normal replace the BCM.
    • If greater than specified range, test the signal circuit for a short to voltage.
  5. If all circuits test normal test or replace the battery current sensor.
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