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Home >> Cadillac >> 2012 >> CTS Base, 2D Coupe, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> Traction Control/Stability Control Indicator Malfunction (Without LSA) >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the Radio/HVAC Control.
  2. Test for less than 5 Ω between the ground circuit terminal 16 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Traction Control Switch parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 14 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 14 and the ground circuit terminal 16. Verify the scan tool Traction Control Switch parameter is Active.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the traction control switch.
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