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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1660 (Anti-Lock Brake System) >> Diagnosis And Testing >> Anti-Lock Control >> Pinpoint Tests >> Pinpoint Test F: DTCs C1222, C1296 (LF), C1297 (RF), C1298 (LR) and C1299 (RR) - Wheel Speed Sensor Fault >> PINPOINT TEST F: DTCs C1222, C1296 (LF), C1297 (RF), C1298 (LR) and C1299 (RR) - WHEEL SPEED SENSOR FAULT

PINPOINT TEST F: DTCs C1222, C1296 (LF), C1297 (RF), C1298 (LR) and C1299 (RR) - WHEEL SPEED SENSOR FAULT

WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. 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 multi-meter probes.
  1. F1 RETRIEVE ABS MODULE DTCs 
    • Connect the scan tool.
    • Key in ON position.
    • Are DTCs C1145, C1155 or C1175 present? 

    Yes:  GO to PINPOINT TEST C .

    No:  If DTC C1222 is present, GO to  F6.

    If DTC C1296 and/or C1297 are present and the active wheel speed sensor tool is available, GO to  F2. If the active wheel speed sensor tool is not available, GO to  F5.

    If DTC C1298 and/or C1299 are present, GO to  F5.

    For all other DTCs, GO to the ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX .

  2. F2 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  F4.

    No  : GO to  F3.

  3. F3 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR AN OPEN 
    • Key in OFF position.
    • For DTC C1296,  measure the resistance between:
      • ABS module C135-34, circuit 522 (TN/BK), harness side and LF wheel speed sensor C150-1, circuit 522 (TN/BK), harness side.
      • ABS module C135-21, circuit 521 (TN/OG), harness side and LF wheel speed sensor C150-2, circuit 521 (TN/OG), harness side.
    • For DTC C1297,  measure the resistance between:
      • ABS module C135-18, circuit 514 (YE/RD), harness side and LF wheel speed sensor C160-2, circuit 514 (YE/RD), harness side.
      • ABS module C135-6, circuit 516 (YE/BK), harness side and LF wheel speed sensor C160-1, circuit 516 (YE/BK), harness side.
    • Are the resistances less than 5 ohms? 

    Yes:  GO to  F7.

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

  4. F4 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:  INSPECT the wheel speed sensor tone ring for damage and looseness. INSTALL new components as necessary. If the tone ring is OK, 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 . 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 . CLEAR the DTCs. REPEAT the self-test.

  5. F5 CHECK THE FRONT WHEEL SPEED SENSOR OUTPUT 
    • Key in OFF position.
    • Disconnect: Suspect Wheel Speed Sensor.
    • For DTC C1296: 
      • connect a fused (5A) jumper wire between LH front wheel speed sensor C150 pin-1, component side and LH front wheel speed sensor C150-1, circuit 522 (TN/BK), harness side.
      • connect the automotive meter between LH front wheel speed sensor C150 pin-2, component side and LH front wheel speed sensor C150-2, circuit 521 (TN/OG), harness side.
    • For DTC C1297: 
      • connect a fused (5A) jumper wire between RH front wheel speed sensor C160 pin-1, component side and RH front wheel speed sensor C160-1, circuit 516 (YE/BK), harness side.
      • connect the automotive meter between RH front wheel speed sensor C160 pin-2, component side and RH front wheel speed sensor C160-2, circuit 514 (YE/RD), harness side.
    • For DTC C1298: 
      • connect a fused (5A) jumper wire between RH rear wheel speed sensor C3116 pin-1, component side and RH rear wheel speed sensor C3116-1, circuit 523 (RD/PK), harness side.
      • connect the automotive meter between RH rear wheel speed sensor C3116 pin-2, component side and RH rear wheel speed sensor C3116-2, circuit 524 (PK/BK), harness side.
    • For DTC C1299: 
      • connect a fused (5A) jumper wire between LH rear wheel speed sensor C3117 pin-1, component side and LH rear wheel speed sensor C3117-1, circuit 519 (LG/BK), harness side.
      • connect the automotive meter between LH rear wheel speed sensor C3117 pin-2, component side and LH rear wheel speed sensor C3117-2, circuit 518 (LG/RD), harness side.
    • Key in ON position.
    • Measure the current while slightly rotating the wheel using incremental turns.
    • Does the automotive meter switch between the low state (4 to 8 mA) and the high state (12 to 16 mA)? 

    Yes:  INSPECT the wheel speed sensor tone ring for damage and looseness. INSTALL new components as necessary. If the tone ring is OK, GO to  F7.

    No:  INSTALL a new affected wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT  or WHEEL SPEED SENSOR - REAR, FRONT WHEEL DRIVE (FWD)  or WHEEL SPEED SENSOR - REAR, ALL WHEEL DRIVE (AWD) . CLEAR the DTCs. REPEAT the self-test.

  6. F6 MONITOR THE WHEEL SPEED SENSOR PIDs 
    • Enter the following diagnostic mode on the scan tool: DataLogger/ABS Module PIDs: Left Front Wheel Speed (LF_WSPD), Right Front Wheel Speed (RF_WSPD), Left Rear Wheel Speed (LR_WSPD) and Right Rear Wheel Speed (RR_WSPD).
    • Drive the vehicle at various speeds above 10 km/h (6 mph) while monitoring the PIDs.
    • Do all of the PIDs match? 

    Yes  : GO to  F7.

    No  : VERIFY that the air pressure in all 4 tires is at the specified level, ADJUST as necessary. VERIFY that all 4 wheels and tires are the same size, INSTALL new as necessary.

    If the wheels, tires and tire pressure are OK, INSPECT all 4 tone rings for damage and looseness. INSTALL new as necessary.

    If the tone rings are OK, INSTALL a new wheel speed sensor for those with PIDs that do not match vehicle speed. REFER to WHEEL SPEED SENSOR - FRONT , WHEEL SPEED SENSOR - REAR, FRONT WHEEL DRIVE (FWD)  or WHEEL SPEED SENSOR - REAR, ALL WHEEL DRIVE (AWD) . CLEAR the DTCs. REPEAT the self-test.

  7. F7 CHECK THE ABS MODULE CONNECTORS 
    • Key in OFF position.
    • Disconnect: ABS Module C135.
    • Check the connector for:
      • corrosion.
      • pushed-out pins.
      • spread terminals.
    • Connect: ABS Module
    • Make sure the connector is seated correctly and 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 DTC. 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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