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Home >> Chevrolet >> 2007 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 350 (Antilock Brake System With Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> Traction Off Indicator Inoperative >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
  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 10-13 volts between traction control switch signal circuit and ground.
    • If under 10 volts test for short to ground, open, high resistance or replace BCM.
  3. Ignition ON, measure for 10-13 volts between traction control switch signal circuit and traction control switch ground at switch connector.
    • If under 10 volts test for open or high resistance in traction control switch ground circuit.
  4. Replace traction control switch.
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