Circuit/System Testing: Notes

B1516 08

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 greater than the specified range, test the low reference circuit terminal B 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 battery current sensor supply voltage circuit terminal A for a short to ground or an open/high resistance. If the circuit test normal, replace the BCM.
   • If greater than the specified range, test the battery current sensor supply voltage circuit for a short to voltage. If the circuit tests normal, replace the BCM.
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 battery current sensor signal circuit terminal C for a short to ground or an open/high resistance. If the circuit test normal, replace the BCM.
   • If greater than the specified range, test the battery current sensor signal circuit terminal C for a short to voltage. If the circuit tests normal, replace the BCM.
5. If all circuits test normal, replace the battery current sensor.