LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Diagnostic Information and Procedures >> DTC B0827 >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the traction control switch.
  2. Test for less than 5 ohms between the ground circuit terminal 13 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 14 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 14 and the ground circuit terminal 13. 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. If all circuits test normal, replace the traction control switch. If the DTC resets, replace the BCM.
scientia non olet · About LEMON Manuals