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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1225 (Anti-Lock Brake System - Vehicle Dynamic Systems) >> Diagnosis And Testing >> Anti-Lock Control - Hybrid >> Pinpoint Tests >> Pinpoint Test O: DTC C0030:07; C0031:29, 2F, 64; C0033:07; C0034:29, 2F, 64; C0036:07: C0037:29, 2F, 64; C0039:07; C003A:29, 2F or C003A:64 >> Pinpoint Test O: DTC C0030:07; C0031:29, 2F, 64; C0033:07; C0034:29, 2F, 64; C0036:07: C0037:29, 2F, 64; C0039:07; C003A:29, 2F Or C003A:64

Pinpoint Test O: DTC C0030:07; C0031:29, 2F, 64; C0033:07; C0034:29, 2F, 64; C0036:07: C0037:29, 2F, 64; C0039:07; C003A:29, 2F Or C003A:64

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.
  1. O1 VERIFY ALL WIRING CONNECTIONS 
    • Ignition OFF.
    • Disconnect: ABS Module C155.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Using a good light source, inspect each connector terminal for any corrosion.
    • Inspect both connectors for any pushed-out pins.

      Refer to appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

    • Using a suitable mating terminal, check each female terminal for deformed or enlarged contacts by comparing the mating terminal's fit between each of the following pins:
      • C155-33
      • C155-34
      • C155-36
      • C155-37
      • C155-42
      • C155-43
      • C155-45
      • C155-46
      • Suspect wheel speed sensor, pin-1
      • Suspect wheel speed sensor, pin-2
        Fig 1: Identifying ABS Module C155 And Suspect Wheel Speed Sensor Connector Pins
        G06389132Courtesy of FORD MOTOR CO.
    • Refer to appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.
    • Is each terminal free of corrosion, pushed-out pins or spread terminals? 
    1. Yes:  GO to O2  .
    2. No:  REPAIR the affected terminal(s). CLEAR the DTCs. REPEAT the self-test.
  2. O2 CHECK THE DTCs FROM THE SELF-TEST 
    • Connect: ABS Module C155.
    • Connect: Suspect Wheel Speed Sensor.
    • Review the DTCs retrieved and recorded during Inspection and Verification.
    • Are DTCs C0031:01; C0034:01; C0037:01 and/or C003A:01 present? 
    1. Yes:  GO to PINPOINT TEST N .
    2. No:  If DTCs C0030:07; C0033:07; C0036:07, and/or C0039:07 are present, GO to  O5. If DTCs C0031:2F; C0034:2F; C0037:2F, and/or C003A:2F are present, GO to  O4. If DTCs C0031:29, 64; C0034:29, 64; C0037:29, 64; C003A:29 and/or C003A:64 are present, GO to O3  . For all other DTCs, REFER to the ABS MODULE DTC CHART .
  3. O3 CHECK THE TIRES SIZE AND PRESSURE 
    • Verify that all tires and wheels are the same size and that the inflation pressures are correct as indicated on the Vehicle Certification (VC) label.
    • Are the wheels and tires OK? 
    1. Yes:  GO to O4  .
    2. No:  INSTALL the correct size tire or adjust tire pressure as necessary.
  4. O4 MONITOR THE WHEEL SPEED SENSOR PIDs 
    • Connect the scan tool.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - ABS Module.
    • Drive the vehicle at a constant speed and monitor the following wheel speed sensor PIDs:
      • Left Front Wheel Speed Sensor (LF_WSPD)
      • Right Front Wheel Speed Sensor (RF_WSPD)
      • Left Rear Wheel Speed Sensor (LR_WSPD)
      • Right Rear Wheel Speed Sensor (RR_WSPD)
    • Are all the wheel speed sensor PIDs consistent with the vehicle speed and each other? 
    1. Yes:  CLEAR the DTCs. DRIVE the vehicle. RETRIEVE the DTCs. If DTCs C0031:29, 2F, 64; C0034:29, 2F, 64; C0037:29, 2F, 64; C003A:29, 2F and/or C003A:64 are present, GO to  O14.
    2. No:  GO to O5  .
  5. O5 INSPECT THE WHEEL SPEED SENSOR MOUNTING 
    1. Yes:  GO to  O7.
    2. No:  TIGHTEN the wheel speed sensor to specification. REFER to SPECIFICATIONS . CLEAR the DTCs. GO to O6  .
  6. O6 RECHECK THE WHEEL SPEED PIDs 
    • Connect the scan tool.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: DataLogger - ABS Module.
    • Drive the vehicle at a constant speed and monitor the following wheel speed sensor PIDs:
      • Left Front Wheel Speed Sensor (LF_WSPD)
      • Right Front Wheel Speed Sensor (RF_WSPD)
      • Left Rear Wheel Speed Sensor (LR_WSPD)
      • Right Rear Wheel Speed Sensor (RR_WSPD)
    • Are all the wheel speed sensor PIDs consistent with the vehicle speed and each other? 
    1. Yes:  The system is operating correctly at this time. The concern may have been caused by a loose wheel speed sensor.
    2. No:  GO to O7  .
  7. O7 CHECK THE WHEEL SPEED SENSOR FOR DAMAGE 
    • Ignition OFF.
    • With the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING & LIFTING -- ESCAPE, ESCAPE HYBRID, MARINER & MARINER HYBRID .
      • NOTE: Examine the wheel speed sensor wire carefully with a good light source. Failure to verify damage in the wheel speed sensor wire can lead to unnecessary installation of a new component.
    • Inspect the wheel speed sensor and harness for abrasion, broken connector tabs or water intrusion.
    • Is the wheel speed sensor and harness OK? 
    1. Yes:  GO to O8  .
    2. No:  INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT  or WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.
  8. O8 CHECK FOR WHEEL SPEED SENSOR RING DAMAGE 
    • Inspect the wheel speed sensor ring for damaged or missing teeth. Rotate the wheel to verify that no teeth are missing.
    • Is the wheel speed sensor ring OK? 
    1. Yes:  GO to O9  .
    2. No:  INSTALL a new wheel speed sensor ring. REFER to WHEEL SPEED SENSOR RING - FRONT  or WHEEL SPEED SENSOR RING - REAR . CLEAR the DTCs. REPEAT the self-test.
  9. O9 CHECK FOR BEARING DAMAGE 
    • Inspect the wheel bearings for damage.
    • Are the wheel bearings OK? 
    1. Yes:  If the Active Wheel Speed Sensor Tester is available, GO to O10  .

      If the Active Wheel Speed Sensor Tester is not available, GO to  O12.

    2. No:  INSTALL new wheel bearings as necessary. REFER to FRONT SUSPENSION for front wheel bearings or REAR SUSPENSION for rear wheel bearings. CLEAR the DTCs. REPEAT the self-test.
  10. O10 CHECK THE ABS MODULE OUTPUT USING THE ACTIVE WHEEL SPEED SENSOR TESTER 
    • Ignition OFF.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Connect the Active Wheel Speed Sensor Tester to the wheel speed sensor connectors.
    • Ignition ON.
    • Select the correct system polarity on the tester and turn the tester power switch to the ON position.
    • Is the module output LED illuminated? 
    1. Yes:  GO to O11  .
    2. No:  GO to  O14.
  11. O11 CHECK THE WHEEL SPEED SENSOR OUTPUT WITH THE ACTIVE WHEEL SPEED SENSOR TESTER 
    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. 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. For the front wheel speed sensor tone ring, REFER to WHEEL SPEED SENSOR RING - FRONT . For the rear wheel speed sensor tone ring, REFER to WHEEL SPEED SENSOR RING - REAR . 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.

  12. O12 CHECK THE ABS MODULE OUTPUT 
    • Ignition OFF.
    • Disconnect: Suspect Wheel Speed Sensor.
    • Ignition ON.
    • Measure the voltage between the suspect wheel speed sensor pins, harness side.
      Fig 2: Checking ABS Module Output
      G06094506Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. Yes:  GO to O13  .
    2. No:  GO to  O14.
  13. O13 CHECK THE WHEEL SPEED SENSOR OUTPUT 
    • Disconnect: Suspect Wheel Speed Sensor.
    • For LF wheel speed sensor DTCs  , connect the meter between LF wheel speed sensor C150-1, circuit RCA17 (YE), harness side and LF wheel speed sensor pin 1, component side. Connect a fused jumper wire between LF wheel speed sensor C150-2, circuit VCA03 (VT/WH), harness side and LF wheel speed sensor pin 2, component side.
      Fig 3: Checking Wheel Speed Sensor Output
      G06094508Courtesy of FORD MOTOR CO.
    • For RF wheel speed sensor DTCs  , connect the meter between RF wheel speed sensor C160-1, circuit RCA19 (VT), harness side and RF wheel speed sensor pin 1, component side. Connect a fused jumper wire between RF wheel speed sensor C160-2, circuit VCA05 (GY/VT), harness side and RF wheel speed sensor pin 2, component side.
    • For RR wheel speed sensor DTCs  , connect the meter between RR wheel speed sensor C426-2, circuit RCA20 (BN), harness side and RR wheel speed sensor pin 2, component side. Connect a fused jumper wire between RR wheel speed sensor C426-1, circuit VCA06 (WH/OG), harness side and RR wheel speed sensor pin 1, component side.
    • For LR wheel speed sensor DTCs  , connect the meter between LR wheel speed sensor C440-2, circuit RCA18 (BN/GN), harness side and LR wheel speed sensor pin 2, component side. Connect a fused jumper wire between LR wheel speed sensor C440-1, circuit VCA04 (BU/OG), harness side and LR wheel speed sensor pin 1, 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 to 8 mA) and the high state (12 to 16 mA)? 
    1. Yes:  GO to O14  .
    2. No:  INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT  or WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.
  14. O14 CHECK FOR CORRECT ABS MODULE OPERATION 
    • Ignition OFF.
    • Disconnect: ABS Module C155.
    • Check for:
      • corrosion.
      • pushed-out pins.
      • spread terminals.
    • Connect: ABS Module C155.
    • 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.
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