LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC B1405 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the battery current sensor.
  2. Ignition OFF, verify a test lamp illuminates between B+ and the low reference circuit terminal B. If the test lamp did not illuminate, test the low reference circuit 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 tests 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.
scientia non olet · About LEMON Manuals