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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1186 (Anti-Lock Brake System Control) >> Diagnosis And Testing >> Principles of Operation >> Pinpoint Test O: Stability Assist Cannot Be Disabled >> Pinpoint Test O: The Stability Assist Cannot Be Disabled

Pinpoint Test O: The Stability Assist Cannot Be Disabled

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Use the flex probe kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
  1. O1 CHECK THE STABILITY TRACTION CONTROL SWITCH 
    • Key in OFF position.
    • Disconnect: Stability Traction Control Switch C280.
    • Turn the stability traction control switch to the OFF position.
    • Measure the resistance between the stability traction control switch C280-1, circuit 1003 (GY/YE), component side and C280-2, circuit 959 (GY), component side.
      Fig 1: Checking Stability Traction Control Switch
      G03928853Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
  2. O2 CHECK CIRCUIT 959 (GY) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Disconnect: ABS Module C155.
    • Key in ON position.
    • Measure the voltage between the ABS module C155-38, circuit 959 (GY), harness side and ground.
      Fig 2: Measuring Voltage Between ABS Module And Ground
      G03928854Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes  : REPAIR the circuit. TEST the system for normal operation.
    • No  : GO to O3.
  3. O3 CHECK CIRCUIT 960 (BK/LB) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Measure the resistance between the ABS module C155-13, circuit 960 (BK/LB), harness side and ground.
      Fig 3: Checking Circuit 960 (BK/LB) For A Short To Ground
      G03928855Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes  : GO to O4.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  4. O4 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Disconnect all the ABS connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all the 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 . 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.
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