LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> Brakes >> Antilock Brake System, Traction Control System & Stability Control System >> Diagnostic Information and Procedures >> Traction Off Indicator Inoperative >> Circuit/System Testing

Circuit/System Testing

  1. With the scan tool, select instrument panel special functions Lamp Test. Command the instrument panel lamps ON. Verify traction off lamp turns ON.
    • If the traction off lamp does not turn ON, replace the instrument panel cluster (IPC).
  2. Ignition OFF, disconnect traction control switch connector. Ignition ON, measure for 4.8-5.2 volts between traction control switch signal circuit and ground.
    • If under 4.8 volts test for short to ground, open, high resistance or replace BCM.
    • If over 5.2 volts test for short to voltage or replace BCM.
  3. Ignition ON, measure for 4.8-5.2 volts between traction control switch signal circuit and traction control switch ground at switch connector.
    • If under 4.8 volts test for open or high resistance in traction control switch ground circuit.
  4. Replace traction control switch.
scientia non olet · About LEMON Manuals