Pinpoint Test F: DTC C1222 - Wheel Speed Mismatch, DTC C1237, DTC C1296, DTC C1297 - Wheel Speed Sensor Signal Fault

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

F1 CHECK FOR DTCs
- Connect the diagnostic tool.
- Key in ON position.
- Retrieve the ABS module DTCs.
- Are DTCs C1145, C1155 or C1230 present?
- Yes : GO to PINPOINT TEST E .
- No : For DTC C1222, GO to F4.
  For DTC C1296 or C1297, GO to F2.
  
  For DTC C1237, GO to F3.
  
  If no DTCs are present, GO to F5.
F2 CHECK THE FRONT WHEEL SPEED SENSOR OUTPUT
- Disconnect: Suspect Wheel Speed Sensor.
- If DTC C1296, connect a fused (5A) jumper wire between the LH front wheel speed sensor, C150-2, circuit 521 (TN/OG), harness side and component side. Connect the automotive meter between the C150-1, circuit 522 (TN/BK), harness side and component side.
  
  Fig 1: Checking Front Wheel Speed Sensor Output
  Courtesy of FORD MOTOR CO.
- If DTC C1297, connect a fused (5A) jumper wire between the RH front wheel speed sensor, C160-2, circuit 514 (YE/RD), harness side and component side. Connect the automotive meter between the C160-1, circuit 516 (YE/BK), harness side and component side.
- Key in ON position.
- Measure the current while slowly spinning the wheel.
- Does the automotive meter switch between 6.3 mA and 15.4 mA?
- Yes : GO to F6.
- No : INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - FRONT, 4X2 , or WHEEL SPEED SENSOR - FRONT, 4X4 . CLEAR the DTCs. REPEAT the self-test.
F3 CHECK THE REAR WHEEL SPEED SENSOR OUTPUT
- Disconnect: Rear Wheel Speed Sensor C455.
- If DTC C1297, connect a fused (5A) jumper wire between the rear wheel speed sensor, C455-1, circuit 518 (LG/RD), harness side and component side. Connect the automotive meter between the C455-2, circuit 519 (LG/BK), harness side and component side.
  
  Fig 2: Checking Rear Wheel Speed Sensor Output
  Courtesy of FORD MOTOR CO.
- Key in ON position.
- Measure the current while slowly spinning the wheel.
- Does the automotive meter switch between approximately 6.3 mA and 15.4 mA?
- Yes : GO to F6.
- No : INSTALL a new wheel speed sensor. REFER to WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.
F4 CHECK FOR CORRECT ABS MODULE CONFIGURATION OPERATION
NOTE: DTC C1222 indicates that there is a problem with the axle configuration in the ABS module.
- Carry out the ABS module configuration. Verify that the vehicle data matches the vehicle options. Refer to MODULE CONFIGURATION .
- CLEAR the DTCs. Carry out the self-test.
- Is DTC 1222 still present?
- Yes : GO to F6.
- No : The system is operating correctly at this time. The concern may have been caused by a mis-configured ABS module.
F5 MONITOR THE WHEEL SPEED SENSOR PIDs
- Enter the following diagnostic mode on the diagnostic tool: ABS Module Wheel Speed Sensor PIDs.
- 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 F6.
- No : INSTALL a new wheel speed sensor in question. REFER to WHEEL SPEED SENSOR - FRONT, 4X2 , WHEEL SPEED SENSOR - FRONT, 4X4 or WHEEL SPEED SENSOR - REAR . CLEAR the DTCs. REPEAT the self-test.
F6 CHECK FOR CORRECT ABS MODULE OPERATION
- Disconnect the ABS connector.
- Check for:
  - Corrosion
  - Pushed-out pins
- Connect the ABS 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 . 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.