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Home >> Cadillac >> 2006 >> STS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Battery, Charging System And Starting System) >> Diagnostic Information and Procedures >> DTC B1516 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

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 the 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 5 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.
  4. Test for 5 volts between the battery current sensor signal circuit terminal C and ground.
    • If less than 5 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 BCM.
  5. If all circuits test normal test or replace the battery current sensor.
B1516 66

When diagnosing B1516 66 verify that the battery current sensor is installed securely and positioned in the correct current flow direction.

  • If the battery current sensor is not, remove and reinstall the sensor properly.

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