Pinpoint Test I: DTC C1095 - Traction Control Switch Circuit Failure And/Or The Traction Control System Cannot Be Disabled

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

I1 MONITOR THE INSTRUMENT CLUSTER PID
- Key in ON position.
- Monitor the instrument cluster traction control switch status PID while pressing the traction control disable switch repeatedly.
- Does the PID agree with the switch position?
Yes : GO to I6.

No : GO to I2.
I2 CHECK THE TRACTION CONTROL SWITCH INPUT
- Key in OFF position.
- Disconnect: Instrument Cluster C220.
- Measure the resistance between instrument cluster C220-20, circuit 1412 (WH/PK), harness side and ground while pressing and releasing the traction control switch.
  
  Fig 1: Checking Traction Control Switch Input
- Is the resistance less than 5 ohms with the switch pressed and greater than 10,000 ohms with the switch released?
Yes : GO to I3.

No : INSTALL a new traction control switch. REFER to TRACTION CONTROL SWITCH in this article. CLEAR the DTCs. REPEAT the self-test.
I3 CHECK CIRCUIT 1412 (WH/PK) FOR A SHORT TO GROUND
- Key in OFF position.
- Disconnect: Traction Control Switch C2039.
- Measure the resistance between traction control switch C2039-7, circuit 1412 (WH/PK), harness side and ground.
  
  Fig 2: Checking Circuit 1412 (WH/PK) For Short To Ground
- Is the resistance greater than 10,000 ohms?
Yes : GO to I4.

No : REPAIR circuit 1412 (WH/PK) for a short to ground. CLEAR the DTCs. REPEAT the self-test.
I4 CHECK CIRCUIT 1412 (WH/PK) FOR AN OPEN
- Measure the resistance between instrument cluster C220-20, circuit 1412 (WH/PK), harness side and traction control switch C2039-7, circuit 1412 (WH/PK), harness side.
  
  Fig 3: Checking Circuit 1412 (WH/PK) For Open
- Is the resistance less than 5 ohms?
Yes : GO to I5.

No : REPAIR circuit 1412 (WH/PK) for an open. CLEAR the DTCs. REPEAT the self-test.
I5 CHECK CIRCUIT 1205 (BK) FOR AN OPEN
- Measure the resistance between traction control switch C2039-1, circuit 1205 (BK), harness side and ground.
  
  Fig 4: Checking Circuit 1205 (BK) For Open
- Is the resistance less than 5 ohms?
Yes : INSTALL a new traction control switch. REFER to TRACTION CONTROL SWITCH in this article. CLEAR the DTCs. REPEAT the self-test.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
I6 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect: Instrument Cluster C220.
- Check for:
  - corrosion.
  - spread or bent pins.
  - pushed-out pins.
- Connect the instrument cluster connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . CLEAR the DTCs. REPEAT the self-test.

No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.