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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC B1516 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the battery current sensor.
  2. Ignition ON, test for 5 volts between the battery current sensor supply voltage circuit, harness side and ground.
    • If the voltage is less than 5 volts, test the battery current sensor supply voltage circuit for a short to ground, a high resistance, an open circuit, or replace the BCM.
  3. Ignition ON, test for 5 volts between the battery current sensor supply voltage circuit and current sensor low reference circuit, harness side.
    • If the voltage is less than 5 volts, test the current sensor low reference circuit for a high resistance, an open circuit, or replace the BCM.
  4. Ignition ON, test for 5 volts between the battery current sensor signal circuit, harness side and ground.
    • If the voltage is less than 5 volts, test the battery current sensor signal circuit for a short to ground, a high resistance, an open circuit, or replace the BCM.
  5. If all 3 circuits test normal, replace the battery current sensor.
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