Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Buick >> 2012 >> LaCrosse Touring >> Repair and Diagnosis >> External Pages >> Different car >> Section 171 (Antilock Brake System With Traction Control System & Stability Control System) >> Diagnostic Information and Procedures >> DTC B2745 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S48E Multi-Function Switch Module - Center Console.
  2. Test for less than 5 Ω between the ground circuit terminal 2 and ground.
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool BCM Traction Control Switch parameter is Inactive.
    • If not the specified value, test the signal circuit for a short to ground. If the circuit tests normal, replace the K9 Body Control Module.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 7 and ground.
  5. Verify the scan tool BCM 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 K9 Body Control Module.
  6. If all circuits test normal, test or replace the S48E Multi-Function Switch Module - Center Console.
scientia non olet · About Mike's Workshop Manuals