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Pinpoint Test F: 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.
  1. F1 CHECK FOR INSTRUMENT CLUSTER DTCs 
    • Connect the diagnostic tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Clear DTCs
    • Enter the following diagnostic mode on the diagnostic tool: Self Test Instrument Cluster
    • Retrieve and record any instrument cluster DTCs.
    • Is DTC C1093 present? 
    1. YES  : Go to  F5.
    2. NO  : For all other instrument cluster DTCs, REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.

      If there are no instrument cluster DTCs present, go to  F2.

  2. F2 CHECK FOR ABS MODULE DTCs 
    • Enter the following diagnostic mode on the diagnostic tool: Self Test ABS Module
    • Retrieve and record any ABS module DTCs.
    • Are any ABS module DTCs present? 
    1. YES  : Go to the ABS Module DTC Chart.
    2. NO  : Go to  F3.
  3. F3 CHECK FOR PCM DTCs 
    • Enter the following diagnostic mode on the diagnostic tool: Self Test PCM
    • Retrieve and record any PCM DTCs.
    • Are any PCM DTCs present? 
    1. YES  : REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.
    2. NO  : Go to  F4.
  4. F4 RECONFIGURE THE PCM 
    • Enter the following diagnostic mode on the diagnostic tool: Reconfigure PCM
    • Reconfigure the PCM and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : Go to  F5.
    2. NO  : The concern has been corrected.
  5. F5 CHECK THE TRACTION CONTROL SWITCH FOR A SHORT 
    • Key in OFF position.
    • Disconnect: Traction Control Switch C280
    • Measure the resistance between traction control switch pin-1 and pin-7 while pressing and releasing the switch.
    • Is the resistance less than 5 ohms with the switch pressed and greater than 10,000 ohms with the switch released? 
    1. YES  : Go to  F6.
    2. NO  : INSTALL a new traction control switch. REFER to Traction Control Switch . TEST the system for normal operation.
  6. F6 CHECK CIRCUIT CCA15 (YE/GY) FOR A SHORT TO GROUND 
    • Disconnect: Instrument Cluster C220
    • Measure the resistance between traction control switch C280-7, circuit CCA15 (YE/GY), harness side and ground.
      • Fig 1: Measuring Resistance
      GF0041431Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  F7.
    2. NO  : REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
  7. F7 ISOLATE THE INSTRUMENT CLUSTER 
    • Connect: Instrument Cluster C220
    • Measure the resistance between traction control switch C280-7, circuit CCA15 (YE/GY), harness side and ground.
      • Fig 2: Measuring Resistance
      GF0041431Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation.
    2. NO  : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article. TEST the system for normal operation.
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