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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1739 (Vehicle Dynamic Systems) >> Diagnosis And Testing >> Anti-Lock Control >> Pinpoint Tests >> Pinpoint Test D: DTCs C1145, C1155, C1165 and C1175 - Wheel Speed Sensor Input Circuit Failure >> PINPOINT TEST D: DTCs C1145, C1155, C1165 AND C1175 - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURE

PINPOINT TEST D: DTCs C1145, C1155, C1165 AND C1175 - WHEEL SPEED SENSOR INPUT CIRCUIT FAILURE

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: The Flex Probe Kit must be used for all test connections. Use of standard multimeter probes may damage wiring terminals
  1. D1 CHECK FOR FAULT REPEATABILITY 
    • Connect the scan tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the scan tool: Clear the Continuous DTCs.
    • Drive the vehicle at least 16 km/h (10 mph).
    • Retrieve and document continuous DTCs.
    • Is DTC C1145, C1155, C1165 or C1175 retrieved? 

    Yes  : If the active wheel speed sensor tool is available, GO to D2. If the active wheel speed sensor tool is not available, GO to  D4.

    No  : INSPECT the wheel speed sensors, wheel speed sensor wiring and wheel speed sensor tone rings. REPAIR or INSTALL new as necessary. If any other DTCs are retrieved, GO to the ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) CHART .

  2. D2 CHECK THE ABS MODULE OUTPUT USING THE SPECIAL TOOL 
    • Key in OFF position.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Connect the special tool to the wheel speed sensor connectors.
    • Key in ON position.
    • Select the correct system polarity on the special tool and turn the special tool power switch to the ON position.
    • Is the module output LED illuminated? 

    Yes  : GO to D3.

    No  : GO to  D6.

  3. D3 CHECK THE WHEEL SPEED SENSOR OUTPUT WITH THE SPECIAL TOOL 
    • Raise the suspect wheel until it can spin freely. Refer to JACKING & LIFTING .
    • While monitoring the special tool, slowly spin the suspect wheel.
    • Do the sensor output LEDs illuminate and flash and is the current overload LED not illuminated? 

    Yes  : 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.

    No  : If the current level LED is not illuminated and the sensor output LEDs do not illuminate or if the current level LED is illuminated red, INSTALL a new wheel speed sensor. For the front wheel speed sensor, REFER to WHEEL SPEED SENSOR - FRONT . For the rear wheel speed sensor, REFER to WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.

    If the current level LED is not illuminated and the sensor output LEDs illuminate green but do not flash, INSPECT the wheel speed sensor tone ring and INSTALL new if necessary. If the tone ring is OK, INSTALL a new wheel speed sensor. For the front wheel speed sensor, REFER to WHEEL SPEED SENSOR - FRONT . For the rear wheel speed sensor, REFER to WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.

  4. D4 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO VOLTAGE 
    CAUTION: No measurements should be taken with the wheel speed sensor connected. Damage to the wheel speed sensor will result.
    NOTE: Both circuits must be checked for each DTC.
    • Key in OFF position.
    • Disconnect: ABS Module C135.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Key in ON position.
    • For DTC C1145,  measure the voltage between ground and:
      • ABS module C135-34, circuit VCA05, (GY/VT), harness side.
      • ABS module C135-33, circuit RCA19 (VT), harness side.
    • For DTC C1155,  measure the voltage between ground and:
      • ABS module C135-45, circuit VCA03 (VT/WH), harness side.
      • ABS module C135-46, circuit RCA17 (YE), harness side.
    • For DTC C1165,  measure the voltage between ground and:
      • ABS module C135-43, circuit VCA06 (WH/OG), harness side.
      • ABS module C135-42, circuit RCA20 (BN), harness side.
    • For DTC C1175,  measure the voltage between ground and:
      • ABS module C135-36, circuit VCA04 (BU/OG), harness side.
      • ABS module C135-37, circuit RCA18 (BN/GN), harness side.
    • Is voltage present? 

    Yes  : REPAIR the affected circuit(s) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.

    No  : GO to D5.

  5. D5 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO GROUND 
    NOTE: Both circuits must be checked for each DTC.
    • Key in OFF position.
    • For DTC C1145,  measure the resistance between ground and:
      • ABS module C135-34, circuit VCA05 (GY/VT), harness side.
      • ABS module C135-33, circuit RCA19 (VT), harness side.
    • For DTC C1155,  measure the resistance between ground and:
      • ABS module C135-45, circuit VCA03 (VT/WH), harness side.
      • ABS module C135-46, circuit RCA17 (YE), harness side.
    • For DTC C1165,  measure the resistance between ground and:
      • ABS module C135-43, circuit VCA06 (WH/OG), harness side.
      • ABS module C135-42, circuit RCA20 (BN), harness side.
    • For DTC C1175,  measure the resistance between ground and:
      • ABS module C135-36, circuit VCA04 (BU/OG), harness side.
      • ABS module C135-37, circuit RCA18 (BN/GN), harness side.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to D6.

    No  : REPAIR the affected circuit(s) for a short to ground. CLEAR the DTCs. REPEAT the self-test.

  6. D6 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR AN OPEN 
    NOTE: Both circuits must be checked for each DTC.
    • Key in OFF position.
    • Disconnect: ABS Module C135.
    • Disconnect: Suspect Wheel Speed Sensor.
    • For DTC C1145,  measure the resistance between:
      • ABS module C135-34, circuit VCA05 (GY/VT), harness side and RF wheel speed sensor C160-1, circuit VCA05 (GY/VT), harness side.
      • ABS module C135-33, circuit RCA19 (VT), harness side and RF wheel speed sensor C160-2, circuit RCA19 (VT), harness side.
    • For DTC C1155,  measure the resistance between:
      • ABS module C135-45, circuit VCA03 (VT/WH), harness side and LF wheel speed sensor C150-1, circuit VCA03 (VT/WH), harness side.
      • ABS module C135-46, circuit RCA17 (YE), harness side and LF wheel speed sensor C150-2, circuit RCA17 (YE), harness side.
    • For DTC C1165,  measure the resistance between:
      • ABS module C135-43, circuit VCA06 (WH/OG), harness side and RR wheel speed sensor C426-3, circuit VCA06 (WH/OG), harness side.
      • ABS module C135-42, circuit RCA20 (BN), harness side and RR wheel speed sensor C426-1, circuit RCA20 (BN), harness side.
    • For DTC C1175,  measure the resistance between:
      • ABS module C135-36, circuit VCA04 (BU/OG), harness side and LR wheel speed sensor C440-3, circuit VCA04 (BU/OG), harness side.
      • ABS module C135-37, circuit RCA16 (BN/GN), harness side and LR wheel speed sensor C440-1, circuit RCA16 (BN/GN), harness side.
    • Are the resistances less than 5 ohms? 

    Yes  : GO to D7.

    No  : REPAIR the affected circuit(s) for an open. CLEAR the DTCs. REPEAT the ABS self-test.

  7. D7 CHECK FOR SHORTED WHEEL SPEED SENSOR CIRCUITS 
    • For DTC C1145,  measure the resistance between:
      • RF wheel speed sensor C160-1, circuit VCA05 (GY/VT), harness side and RF wheel speed sensor C160-2, circuit RCA19 (VT), harness side.
    • For DTC C1155,  measure the resistance between:
      • LF wheel speed sensor C150-1, circuit VCA03 (VT/WH), harness side and LF wheel speed sensor C150-2, circuit RCA17 (YE), harness side.
    • For DTC C1165,  measure the resistance between:
      • RR wheel speed sensor C426-3, circuit VCA06 (WH/OG), harness side and RR wheel speed sensor C426-1, circuit RCA20 (BN), harness side.
    • For DTC C1175,  measure the resistance between:
      • LR wheel speed sensor C440-3, circuit VCA04 (BU/OG), harness side and LR wheel speed sensor C440-1, circuit RCA16 (BN/GN), harness side.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to D8.

    No  : REPAIR the affected circuit(s) for a short. CLEAR the DTCs. REPEAT the self-test.

  8. D8 CHECK THE ABS MODULE OUTPUT 
    • Connect: ABS Module C135.
    • Key in ON position.
    • For DTC C1145,  measure the voltage between:
      • RF wheel speed sensor C160-1, circuit VCA05 (GY/VT), harness side and RF wheel speed sensor C160-2, circuit RCA19 (VT), harness side.
    • For DTC C1155,  measure the voltage between:
      • LF wheel speed sensor C150-1, circuit VCA03 (VT/WH), harness side and LF wheel speed sensor C150-2, circuit RCA17 (YE), harness side.
    • For DTC C1165,  measure the voltage between:
      • RR wheel speed sensor C426-3, circuit VCA06 (WH/OG), harness side and RR wheel speed sensor C426-1, circuit RCA20 (BN), harness side.
    • For DTC C1175,  measure the voltage between:
      • LR wheel speed sensor C440-3, circuit VCA04 (BU/OG), harness side and LR wheel speed sensor C440-1, circuit RCA16 (BN/GN), harness side.
    • Are the voltages greater than 10 volts? 

    Yes  : INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT  or WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.

    No  : GO to D9.

  9. D9 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Disconnect the ABS module connector.
    • Check for:
      • Corrosion.
      • Pushed-out pins.
      • Spread terminals.
    • Connect the ABS module 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 ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . CLEAR the DTCs. REPEAT the self-test.

    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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