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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 355 (Anti-Lock Brake System & Stability Control) >> Diagnosis And Testing >> Anti-Lock Control - Four-Channel >> Pinpoint Tests >> Pinpoint Test S: DTCs C0031:13, C0031:17, C0031:23 (LF), C0034:13, C0034:17, C0034:23 (RF), C0037:13, C0037:17, C0037:23 (LR), C003A:13, C003A:17, C003A:23 (RR) >> PINPOINT TEST S: DTCs C0031:13, C0031:17, C0031:23 (LF), C0034:13, C0034:17, C0034:23 (RF), C0037:13, C0037:17, C0037:23 (LR), C003A:13, C003A:17, C003A:23 (RR)

PINPOINT TEST S: DTCs C0031:13, C0031:17, C0031:23 (LF), C0034:13, C0034:17, C0034:23 (RF), C0037:13, C0037:17, C0037:23 (LR), C003A:13, C003A:17, C003A:23 (RR)

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. S1 CHECK FOR FAULT REPEATABILITY 
    • Ignition ON.
    • Using a scan tool, clear the ABS module DTCs.
    • Drive the vehicle at least 20 km/h (12 mph).
    • Enter the following diagnostic mode on the scan tool: Self Test - ABS Module.
    • Is the DTC still present? 
    1. Yes  : If the Rotunda Active Wheel Speed Sensor Tester is available, GO to S2. If the Rotunda Active Wheel Speed Sensor Tester is not available, GO to  S4.
    2. No  : INSPECT the wheel speed sensors and wheel speed sensor wiring. REPAIR or INSTALL new as necessary. REFER to WHEEL SPEED SENSOR - FRONT, FOUR WHEEL DRIVE (4WD)  or WHEEL SPEED SENSOR - REAR, FOUR-CHANNEL .
  2. S2 CHECK THE ABS MODULE OUTPUT USING THE ROTUNDA ACTIVE WHEEL SPEED SENSOR TESTER 
    • Ignition OFF.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Connect the Rotunda Active Wheel Speed Sensor Tester to the wheel speed sensor connectors.
    • Ignition ON.
    • Select the correct system polarity on the Rotunda Active Wheel Speed Sensor Tester and turn the power switch to the ON position.
    • Is the module output LED illuminated? 
    1. Yes  : GO to S3.
    2. No  : GO to  S5.
  3. S3 CHECK THE WHEEL SPEED SENSOR OUTPUT WITH THE ROTUNDA ACTIVE WHEEL SPEED SENSOR TESTER 
    • Raise the suspect wheel until it can spin freely. Refer to JACKING & LIFTING .
    • While monitoring the Rotunda Active Wheel Speed Sensor Tester, slowly spin the suspect wheel.
    • Do the sensor output LEDs illuminate and flash and is the current overload LED not illuminated? 
    1. 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.
    2. 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. REFER to WHEEL SPEED SENSOR - FRONT, FOUR WHEEL DRIVE (4WD) , WHEEL SPEED SENSOR - FRONT, REAR WHEEL DRIVE (RWD)  or WHEEL SPEED SENSOR - REAR, FOUR-CHANNEL . 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, INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT, FOUR WHEEL DRIVE (4WD) , WHEEL SPEED SENSOR - FRONT, REAR WHEEL DRIVE (RWD)  or WHEEL SPEED SENSOR - REAR, FOUR-CHANNEL . CLEAR the DTCs. REPEAT the self-test.

  4. S4 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO BATTERY VOLTAGE 
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Ignition ON.
    • Measure the voltage between the suspect wheel speed sensor connector, harness side and ground as follows:
      Wheel Speed Sensor Location Wheel Speed Sensor Circuit
      LF C150-1 VCA03 (VT/WH)
      C150-2 RCA17 (YE)
      RF C160-1 VCA05 (GY/VT)
      C160-2 RCA19 (VT)
      LR C440-1 RCA21 (BN/GN)
      C440-2 VCA07 (BU/OG)
      RR C426-1 VCA06 (WH/OG)
      C426-2 RCA20 (BN)
      Fig 1: Measuring Voltage Between Wheel Speed Sensor Connector, Harness Side And Ground
      G08596593Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    1. Yes  : REPAIR the affected circuit(s) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
    2. No  : GO to S5.
  5. S5 CHECK THE WHEEL SPEED SENSOR CIRCUITS FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Disconnect: ABS Module C135.
    • Measure the resistance between the suspect wheel speed sensor connector, harness side and ground as follows:
      Wheel Speed Sensor Location Wheel Speed Sensor Circuit
      LF C150-1 VCA03 (VT/WH)
      C150-2 RCA17 (YE)
      RF C160-1 VCA05 (GY/VT)
      C160-2 RCA19 (VT)
      LR C440-1 RCA21 (BN/GN)
      C440-2 VCA07 (BU/OG)
      RR C426-1 VCA06 (WH/OG)
      C426-2 RCA20 (BN)
      Fig 2: Measuring Resistance Between Wheel Speed Sensor Connector, Harness Side And Ground
      G08596594Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10, 000 ohms? 
    1. Yes  : GO to S6.
    2. No  : REPAIR the affected circuit(s) for a short to ground. CLEAR the DTCs. REPEAT the self-test.
  6. S6 CHECK THE WHEEL SPEED CIRCUITS FOR AN OPEN 
    • Disconnect: Suspect Wheel Speed Sensor.
    • Measure the resistance between ABS module connector C135, harness side and the suspect wheel speed sensor connector, harness side as follows:
      Wheel Speed Sensor Location ABS Module Circuit Wheel Speed Sensor
      LF C135-27 VCA03 (VT/WH) C150-1
      C135-28 RCA17 (YE) C150-2
      RF C135-3 VCA05 (GY/VT) C160-1
      C135-4 RCA19 (VT) C160-2
      LR C135-36 RCA21 (BN/GN) C440-1
      C135-35 VCA07 (BU/OG) C440-2
      RR C135-11 VCA06 (WH/OG) C426-1
      C135-10 RCA20 (BN) C426-2
      Fig 3: Measuring Resistance Between ABS Module Connector C135 And Wheel Speed Sensor Connector
      G08596595Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. Yes  : GO to S7.
    2. No  : REPAIR the affected circuit(s) for an open circuit. CLEAR the DTCs. REPEAT the self-test.
  7. S7 CHECK FOR SHORTED WHEEL SPEED SENSOR CIRCUITS 
    • Measure the resistance between the suspect wheel speed sensor connector, harness side as follows:
      Wheel Speed Sensor Location Wheel Speed Sensor Circuit Wheel Speed Sensor
      LF C150-1 VCA03 (VT/WH)/RCA17 (YE) C150-2
      RF C160-1 VCA05 (GY/VT)/RCA19 (VT) C160-2
      LR C440-1 RCA21 (BN/GN)/VCA07 (BU/OG) C440-2
      RR C426-1 VCA06 (WH/OG)/RCA20 (BN) C426-2
      Fig 4: Checking For Shorted Wheel Speed Sensor Circuits
      G08596596Courtesy of FORD MOTOR CO.
    • Is the resistance greater 10, 000 ohms? 
    1. Yes  : GO to S8.
    2. No  : REPAIR the affected circuit(s). CLEAR the DTCs. REPEAT the self-test.
  8. S8 CHECK FOR CORRECT ABS MODULE OUTPUT 
    • Connect: ABS Module C135.
    • Ignition ON.
    • Measure the voltage between the suspect wheel speed sensor connector, harness side.
      Wheel Speed Sensor Location Wheel Speed Sensor Circuit Wheel Speed Sensor
      LF C150-1 VCA03 (VT/WH)/RCA17 (YE) C150-2
      RF C160-1 VCA05 (GY/VT)/RCA19 (VT) C160-2
      LR C440-1 RCA21 (BN/GN)/VCA07 (BU/OG) C440-2
      RR C426-1 VCA06 (WH/OG)/RCA20 (BN) C426-2
      Fig 5: Checking For Correct ABS Module Output
      G08596597Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. Yes  : INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT, FOUR WHEEL DRIVE (4WD) , WHEEL SPEED SENSOR - FRONT, REAR WHEEL DRIVE (RWD)  or WHEEL SPEED SENSOR - REAR, FOUR-CHANNEL . CLEAR the DTCs. REPEAT the self-test.
    2. No  : GO to S9.
  9. S9 CHECK THE WHEEL SPEED SENSOR OUTPUT 
    • Ignition OFF.
    • Disconnect: Wheel Speed Sensor C150.
    • For LF wheel DTCs, connect a fused jumper wire between LF wheel speed sensor C150-1, circuit VCA03 (VT/WH), harness side and LF wheel speed sensor C150, pin 1, circuit VCA03 (VT/WH), component side.
      Fig 6: Connecting Fused Jumper Between LF Wheel Speed Sensor C150-1 Circuit VCA03 (VT/WH0 And LF Wheel Speed Sensor C150, Pin 1, Circuit VCA03 (VT/WH)
      G08596598Courtesy of FORD MOTOR CO.
    • Connect the automotive meter between LF wheel speed sensor C150-2, circuit RCA17 (YE), harness side and LF wheel speed sensor C150, pin 2, circuit RCA17 (YE), component side.
    • For RF wheel DTCs, connect a fused jumper wire between RF wheel speed sensor C160-1, circuit VCA05 (GY/VT), harness side and RF wheel speed sensor C160, pin 1, circuit VCA05 (GY/VT), component side.
      Fig 7: Connecting Fused Jumper Wire Between RF Wheel Speed Sensor C160-1, Circuit VCA05 (GY/VT) And RF Wheel Speed Sensor C160, Pin 1, Circuit VCA05 (GY/VT)
      G08596599Courtesy of FORD MOTOR CO.
    • Connect the automotive meter between RF wheel speed sensor C160-2, circuit RCA19 (VT), harness side and RF wheel speed sensor C160, pin 2, circuit RCA19 (VT), component side.
    • For LR wheel DTCs, connect a fused jumper wire between LR wheel speed sensor C440-1, circuit VCA07 (BU/OG), harness side and LR wheel speed sensor C440, pin 1, circuit VCA07 (BU/OG), component side.
      Fig 8: Connecting Fused Jumper Wire Between LR Wheel Speed Sensor C440-1, Circuit VCA07 (BU/OG) And LR Wheel Speed Sensor C440, Pin 1, Circuit VCA07 (BU/OG)
      G08596600Courtesy of FORD MOTOR CO.
    • Connect the automotive meter between LR wheel speed sensor C440-2, circuit RCA21 (BN/GN), harness side and LR wheel speed sensor C440, pin 2, circuit RCA21 (BN/GN), component side.
    • For RR wheel DTCs, connect a fused jumper wire between LF wheel speed sensor C426-1, circuit VCA06 (WH/OG) harness side and RR wheel speed sensor C426, pin 1, circuit VCA06 (WH/OG) component side.
      Fig 9: Connecting Fused Jumper Wire Between LF Wheel Speed Sensor C426-1, Circuit VCA06 (WH/OG) And RR Wheel Speed Sensor C426, Pin 1, Circuit VCA06 (WH/OG)
      G08596601Courtesy of FORD MOTOR CO.
    • Connect the automotive meter between RR wheel speed sensor C426-2, circuit RCA20 (BN), harness side and LF wheel speed sensor C426, pin 2, circuit RCA20 (BN), component side.
    • Ignition ON.
    • Measure the current while slightly rotating the wheel using incremental turns.
    • Does the automotive meter switch between the low state (5-8 mA) and the high state (12-16 mA)? 
    1. Yes  : GO to S10.
    2. No  : INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT, FOUR WHEEL DRIVE (4WD)  or WHEEL SPEED SENSOR - REAR, FOUR-CHANNEL . CLEAR the DTCs. REPEAT the self-test.
  10. S10 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Disconnect: ABS Module.
    • Check for:
      • corrosion
      • pushed-out pins
      • spread terminals
    • Connect: ABS Module.
    • Make sure the connector is seated correctly, then operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. Yes  : INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE . TEST the system for normal operation.
    2. 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.