Pinpoint Test L: The Traction Control System Cannot Be Disabled/Enabled Or The Traction Control System Is Inoperative

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

L1 CHECK FOR DTCs
- Check for any ABS module, IPC or PCM DTCs.
- Are any DTCs present?
- Yes: For ABS module DTCs, REFER to the ABS MODULE DTC CHART .
  For PCM DTCs, REFER to the INTRODUCTION - GASOLINE MODELS .
  
  For IPC DTCs, REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES .
- No: GO to L2 .
L2 CHECK THE TRACTION CONTROL SWITCH
- Disconnect: Traction Control Switch C2267.
- Measure the resistance between traction control switch C2267 pin-1, component side, and traction control switch C2267 pin-7, component side while pressing and releasing the switch.
- Is the resistance greater than 10,000 ohms with the switch released and less than 5 ohms with the switch pressed?
- Yes: GO to L3 .
- No: INSTALL a new traction control switch. REFER to STABILITY/TRACTION CONTROL SWITCH . TEST the system for normal operation.
L3 CHECK THE TRACTION CONTROL SWITCH SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: IPC C220.
- Ignition ON.
- Measure the voltage between traction control switch C2267-7, circuit CCA15 (YE/GY), harness side and ground.
  
  Fig 1: Measuring Voltage Between Traction Control Switch C2267-7, Circuit CCA15 (YE/GY), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is any voltage present?
- Yes: REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
- No: GO to L4 .
L4 CHECK THE TRACTION CONTROL SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Measure the resistance between traction control switch C2267-7, circuit CCA15 (YE/GY), harness side and ground.
  
  Fig 2: Measuring Resistance Between Traction Control Switch C2267-7, Circuit CCA15 (YE/GY), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes: GO to L5 .
- No: REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
L5 CHECK THE TRACTION CONTROL SWITCH GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Measure the resistance between traction control switch C2267-1, circuit GD116 (BK/VT), harness side and ground.
  
  Fig 3: Measuring Resistance Between Traction Control Switch C2267-1, Circuit GD116 (BK/VT), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes: GO to L6 .
- No: REPAIR circuit GD116 (BK/VT). TEST the system for normal operation.
L6 CHECK TRACTION CONTROL SWITCH SIGNAL CIRCUIT FOR AN OPEN
- Measure the resistance between IPC C220-7, circuit CCA15 (YE/GY), harness side and traction control switch C2267-1, circuit CCA15 (YE/GY), harness side.
  
  Fig 4: Checking Traction Control Switch Signal Circuit For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes: GO to L7 .
- No: REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
L7 CHECK FOR CORRECT IPC OPERATION
- Ignition OFF.
- Check IPC C220 for:
  - corrosion.
  - pushed-out pins.
  - spread terminal.
- Connect: IPC C220.
- Make sure the connector is seated correctly then operate the system and verify the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new IPC . REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . 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.