C0710
DTC C0710
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.
DTC Descriptor
DTC C0710
- Steering Position Signal
Diagnostic Fault Information
Circuit/System Description
The electronic brake control module (EBCM) receives a digital and an analog steering wheel position signal from one sensor. The EBCM uses the steering wheel position sensor signals to perform Vehicle Stability Enhancement System (VSES). The digital data parameter will calibrate to 0° after each key cycle regardless of actual steering wheel position. The EBCM verifies the accuracy of the steering wheel position signal by correlating the digital and analog signals together.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
* Vehicle speed is greater than 15 km/h (9 mph), the steering angle does not change more than 10 degrees in 20 seconds and the yaw rate is 8.6 degrees/sec or more.
* The digital and analog steering wheel position signals do not correlate.
Action Taken When the DTC Sets
* The EBCM disables the VSES for the duration of the ignition cycle.
* A driver information message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present and the DTC is cleared with a scan tool.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 50 consecutive drive cycles.
Diagnostic Aids
* During diagnosis, park the vehicle on a level surface.
* The vehicle should not pull in either direction while driving straight on a level surface.
* Verify the steering wheel and steering wheel position sensor is installed correctly.
Reference Information
Schematic Reference
Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems
Connector End View Reference
Component Connector End Views Connector End Views By Name
Description and Operation
ABS Description and Operation Description and Operation
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
Scan Tool Reference
Control Module References Control Module References
Circuit/System Verification
Test drive the vehicle at a speed greater than 15 km/h (9 mph) and make several turns. The DTC should not reset.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the steering wheel position sensor.
2. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10 ohm between the ground circuit terminal 8 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Test for less than 5 ohm of resistance between the low reference circuit terminal 2 and ground.
• If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
4. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 7 and ground.
• If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal, and the fuse is OK, replace the HVAC relay 87.
5. Test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
• If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
• If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
6. Test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and the signal terminal 6.
• If not the specified range, test the signal circuit for an open/high resistance or short to voltage. If the circuit tests normal, replace the EBCM.
7. Test for 4.8-5.2 V between the signal circuit terminals listed below and ground.
* Phase A terminal 3
* Phase B terminal 4
* Marker Pulse terminal 5
• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the EBCM.
8. Ignition OFF, disconnect the EBCM harness connector.
9. Ignition OFF, test for infinite resistance between the signal circuit terminal 30 and ground.
• If less than the specified range, test the signal circuit for a short to ground.
10. If all circuits test normal, replace the steering wheel position sensor. If the DTC resets, replace the EBCM.
repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Steering Wheel Position Sensor or Steering Shaft Lower Bearing Replacement Steering Wheel Position Sensor or Steering Shaft Lower Bearing Replacement
* Control Module References Control Module References for EBCM replacement, programming and setup