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Circuit/System Testing

NOTE: Circuit/System Verification must be performed before Circuit/System Testing.
  1. Ignition OFF, disconnect the harness connector at the S109 Sport Mode Switch.
  2. Test for less than 5 Ω between the ground circuit terminal 3 and ground.
  3. If greater than the specified range, test the ground circuit for an open/high resistance.
  4. Ignition ON, verify the scan tool BCM Traction Control Switch parameter is Inactive.
  5. 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.
  6. Install a 3 A fused jumper wire between the signal circuit terminal 1 and ground.
  7. Verify the scan tool BCM Traction Control Switch parameter is Active.
  8. 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.
  9. If all circuits test normal, test or replace the S109 Sport Mode Switch.
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