Under the following conditions, DTCs are set
- The 2 suspect wheel speeds equal zero for 60 seconds.
- The other wheel speeds are greater than 16 km/h (10 mph).
- The other wheel speeds are within 11 km/h (7 mph) of each other.
Diagnose each wheel speed sensor individually.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 3: Measure the resistance of the wheel speed sensor in order to determine if the sensor has a valid resistance value.
- 4: Ensures that the wheel speed sensor is generating a valid A/C voltage output.
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: ABS Schematics Connector End View Reference: ABS Connector End Views | ||||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | |
| 2 | Install a scan tool. Turn ON the ignition. Set up the scan tool snap shot feature to trigger for this DTC. Drive the vehicle at a speed greater than the specified value. Does the scan tool indicate that this wheel speed DTC set? | 8 km/h (5 mph) | Go to Step 3 | Go to Diagnostic Aids |
| 3 | Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information. Disconnect the wheel speed sensor connector. Measure the resistance across the wheel speed sensor. Does the resistance measure within the specified range? | 850-1350 ohms | Go to Step 4 | Go to Step 8 |
| 4 | Spin the wheel. Measure the AC voltage across the wheel speed sensor. Does the AC voltage measure greater than the specified value? | 100 mV | Go to Step 5 | Go to Step 8 |
| 5 | Inspect for poor connections at the harness connector of the wheel speed sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 6 | |
| 6 | Test the wheel speed sensor circuits of the electronic brake control module (EBCM) for the following conditions: An open A short to ground A short to voltage Shorted together Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 7 | |
| 7 | Inspect for poor connections at the harness connector for the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 10 | Go to Step 9 | |
| 8 | Replace the wheel speed sensor. Refer to Wheel Bearing/Hub Replacement - Front (AWD) or Wheel Bearing/Hub Replacement - Front (RWD) in Front Suspension or Wheel Bearing/Hub Replacement - Rear in Rear Suspension. Did you complete the replacement? | Go to Step 10 | ||
| 9 | Replace the EBCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? | Go to Step 10 | ||
| 10 | Use the scan tool in order to clear the DTCs. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset? | Go to Step 2 | System OK | |
DTC C0035-C0051
Circuit Description
The electronic brake control module (EBCM) supplies ground to activate the ABS pump motor. An internal system relay in the EBCM supplies battery positive voltage to the pump motor when the ignition is turned ON. The EBCM monitors pump motor feedback voltage after activation to detect a stalled or binding pump motor.
DTC Descriptors
This diagnostic procedure supports the following DTC
DTC C0110 Pump Motor Circuit
This vehicle has DTCs which include DTC Symptoms. For more information on DTC Symptoms, refer to DTC Symptom Description in Vehicle DTC Information.
| DTC Symptom | DTC Symptom Descriptor |
|---|---|
| 04 | Open |
| 07 | Voltage Above Threshold |
| 61 | Actuator Stuck |
DTC C0110
Conditions for Running the DTC
C0110 04
- System and ignition voltage is between 10.5 and 17 volts.
- The system enable relay is ON.
- The pump motor has been commanded OFF for 2.5 seconds.
C0110 07
- System and ignition voltage is between 10.5 and 17 volts.
- The system enable relay is ON.
C0110 61
- DTC C0110 04 or 07 are not set.
- The system enable relay is ON.
- The pump motor has been commanded ON for .3 seconds.