Pinpoint Test I: The Traction Control System Cannot Be Disabled

CAUTION: Use the correct probe adapter(s) when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.

I1 CHECK CIRCUIT 91-CF54 (BK/WH) FOR AN OPEN
- Key in OFF position.
- Disconnect: Traction Control Switch C2267.
- Measure the resistance between traction control switch C2267-1, circuit 91-CF54 (BK/WH), harness side and ground.
  
  Fig 1: Checking Circuit 91-CF54 (BK/WH) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : GO to I2.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
I2 CHECK THE TRACTION CONTROL SWITCH
- Measure the resistance between traction control switch C2267, pin 1 and pin 2 (component side) while pressing the traction control switch.
  
  Fig 2: Checking Traction Control Switch
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms with the traction control switch pressed and greater than 10,000 ohms with the traction control switch released?
Yes : GO to I3.

No : INSTALL a new traction control switch. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
I3 CHECK CIRCUIT 91S-CF54 (BK/WH) FOR AN OPEN
- Disconnect: ABS Module C135.
- Measure the resistance between ABS module C135-38, circuit 91S-CF54 (BK/WH), harness side and traction control switch C2267-2, circuit 91S-CF54 (BK/WH), harness side.
  
  Fig 3: Checking Circuit 91S-CF54 (BK/WH) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : GO to I4.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
I4 CHECK FOR CORRECT ABS MODULE OPERATION
- Disconnect all ABS connectors.
- Check for:
  - Corrosion.
  - Pushed-out pins.
- Connect all ABS connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
Yes : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE in this article. TEST the system for normal operation.

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.