FixVault
Home › Hummer › 2008 › H3 Base, Automatic › Repair and Diagnosis › External Pages › Different car › Section 298 (Antilock Brake System) › Diagnostic Information and Procedures › DTC B0827 › Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Canyon and 2009 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the traction control switch.
  2. Test for less than 5 ohms between the ground circuit terminal H and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool BCM TCS Switch State parameter is Released.
    • If not the specified value, test the signal circuit terminal J for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3A fused jumper wire between the signal circuit terminal J and the ground circuit terminal H. Verify the scan tool BCM TCS Switch State parameter is Pressed.
    • 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. Ignition ON, verify the scan tool BCM Traction Switch LED parameter is OFF.
    • If not the specified value, test the signal circuit terminal B for a short to ground. If the circuit tests normal, replace the BCM.
  6. Install a 3A fused jumper wire between the signal circuit terminal B and the ground circuit terminal H. Verify the scan tool BCM Traction Switch LED parameter is ON.
    • 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.
  7. If all circuits test normal, test or replace the traction control switch.
About FixVault