Pinpoint Test G: The Stability/Traction Control System Is Inoperative

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

G1 VERIFY THAT THE SYSTEM CAN BE ENABLED/DISABLED BY THE STABILITY/TRACTION CONTROL SWITCH
- Test drive the vehicle, press the stability/traction control switch and verify that the system can be enabled/disabled by the switch.
- Can the system be enabled/disabled by the switch?
- Yes : EXPLAIN correct system operation to the customer.
- No : GO to G2.
G2 CHECK FOR ABS MODULE, PCM AND IC DTCs
- Connect the scan tool.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self Test - All CMDTCs.
- Are any DTCs present in the PCM, IC or ABS module?
- Yes : For PCM DTCs, REFER to the INTRODUCTION - GASOLINE MODELS article. For IC DTCs, REFER to the DTC Table in MULTIFUNCTION ELECTRONIC MODULES article.
  For ABS module DTCs, GO to the ABS MODULE DTC TABLE .
- No : GO to G3.
G3 VERIFY THE ABS MODULE CONFIGURATION
- Configure the ABS module. Refer to Programmable Module Installation (PMI) in MODULE CONFIGURATION SYSTEM article.
- Test drive the vehicle and verify that the traction control system operates correctly.
- Does the system operate correctly?
- Yes : The concern was due to improper or incomplete ABS module configuration.
- No : GO to G4.
G4 CHECK THE SIGNAL CIRCUIT FOR A SHORT TO GROUND
- For vehicles with navigation:
- Disconnect: FCIM C2403.
- For all other vehicles:
- Disconnect: HVAC-Dual Automatic Temperature Control (DATC) C228C (vehicles without navigation).
- Disconnect: IC C220.
- Measure the resistance between IC C220-18, circuit CCA15 (YE/GY), harness side and ground.
  
  Fig 1: Measuring Resistance Between IC C220-18, Circuit CCA15 (YE/GY) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10, 000 ohms?
- Yes : For vehicles equipped with navigation, GO to G5.
  For vehicles without navigation, GO to G6.
- No : REPAIR circuit CCA15 (YE/GY). CLEAR the DTCs. REPEAT the self-test.
G5 CHECK FOR CORRECT FCIM OPERATION
- Disconnect: FCIM C2403.
- Check for:
  - corrosion.
  - pushed-out pins.
  - spread terminals.
- Connect the FCIM 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 FCIM. REFER to INFORMATION SYSTEM AND ENTERTAINMENT SYSTEM article. CLEAR the DTCs. REPEAT the self-test. 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. TEST the system for normal operation.
G6 CHECK FOR CORRECT HVAC-DATC OPERATION
- Disconnect: HVAC-DATC C228C.
- Check for:
  - corrosion.
  - pushed-out pins.
  - spread terminals.
- Connect the HVAC-DATC 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 HVAC module. REFER to HVAC - CLIMATE CONTROL SYSTEM article. CLEAR the DTCs. REPEAT the self-test. 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. TEST the system for normal operation.