Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Buick >> 2008 >> Lucerne CX >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC C0899 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the EBCM.
  2. Ignition OFF, test for less than 3.0 ohms of resistance between the ground circuit terminals 16 and 45 to ground.
    • If greater than the specified range, test the ground circuits for an open/high resistance.
  3. Ignition ON, verify a test lamp illuminates between the Battery Positive Voltage circuit terminals 2 and 31 and ground.
    • If the test lamp did not illuminate, test the Battery Positive Voltage circuits for a short to ground or an open/high resistance.
  4. If the circuits test normal, replace the EBCM.
scientia non olet · About Mike's Workshop Manuals