Diagnostic Instructions
DTC Descriptor
DTC C0710 00: Steering Position Signal
DTC C0710 1A: Steering Position Signal Bias Level Out of Range
DTC C0710 1F: Steering Position Signal Intermittent
DTC C0710 52: Steering Position Signal Compare Failure
Circuit/System Description
The steering angle sensor supplies 2 analog inputs, position signal A and position signal B, to the electronic brake control module (EBCM). The 2 input signals are approximately 90 degrees out of phase. By interpreting
the relationship between the 2 inputs, the EBCM can determine the position of the steering wheel and the direction of the steering wheel rotation.
Conditions for Running the DTC
C0710 00
| • | Ignition voltage is greater than 8 volts. |
| • | The steering wheel position sensor has been powered ON for 0.2 second. |
C0710 1A
| • | Ignition voltage is greater than 8 volts. |
| • | The steering wheel position sensor is centered. |
C0710 1F
| • | Ignition voltage is greater than 8 volts. |
| • | The steering wheel position sensor has been powered ON for 0.2 seconds. |
| • | The steering rate of position signal A is less than 80 degrees per second. |
C0710 52
| • | Ignition voltage is greater than 8 volts. |
| • | The steering wheel position sensor has been powered ON for 0.2 second. |
| • | The steering wheel position sensor is centered. |
Conditions for Setting the DTC
C0710 00
Both position signal A and position signal B are greater than 4.9 volts or less than 0.2 volt for 1.6 seconds.
C0710 1A
The steering bias is greater than 40 degrees.
C0710 1F
The difference in the phase angle between position signal A and position signal B is greater than 106 degrees or less than 84 degrees continuously for 0.25 second.
C0710 52
The changes in position signal A or position signal B is greater than 36 degrees between consecutive scans of the signal.
Action Taken When the DTC Sets
| • | The EBCM disables the vehicle stability enhancement system (VSES) for the duration of the ignition cycle. |
| • | The driver information center (DIC) displays the TRAC/STABILITRAK OFF message. |
| • | The ABS remains functional. |
Conditions for Clearing the DTC
| • | The condition for the DTC is no longer present and the DTC is cleared with a scan tool. |
| • | The electronic brake control module (EBCM) automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles. |
Diagnostic Aids
| • | Inspect the vehicle for proper alignment. The car should not pull in either direction while driving straight on a level surface. |
| • | The Snapshot function on the scan tool can help find an intermittent DTC. |
| • | Possible causes for this DTC are the following conditions: |
| - | One of the steering wheel position sensor inputs are open, shorted to ground, or shorted to battery. |
| - | Internal steering angle sensor malfunction |
| - | Noise on the steering wheel position signal circuits |
| - | Yaw and lateral acceleration sensor malfunction causing drifting signal outputs |
| - | Internal EBCM malfunction |
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
ABS Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
for Scan Tool Information
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the steering position sensor.
- Test for less than 5 ohms 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. |
- Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal 1 and ground.
| ⇒ | If less than the specified range, test the 5-volt 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 volt reference circuit for a short to voltage. If the circuit tests normal, replace the EBCM. |
- Verify the scan tool SWPS signal A parameter is less than 0.2 volt.
| ⇒ | If greater than the specified range, test the signal A circuit terminal 5 for a short to voltage. If the circuit tests normal, replace the EBCM. |
- Verify the scan tool SWPS signal B parameter is less than 0.2 volt.
- If greater than the specified range, test the signal B circuit terminal 6 for a short to voltage. If the circuit tests normal, replace the EBCM.
- Install a 3A fused jumper wire between the signal A circuit terminal 5 and the 5-volt reference circuit terminal 1. Verify the scan tool SWPS signal A parameter is greater than 4.8 volts.
| ⇒ | If less than the specified range, test the signal A circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM. |
- Install a 3A fused jumper wire between the signal B circuit terminal 6 and the 5-volt reference circuit terminal 1. Verify the scan tool SWPS signal B parameter is greater than 4.8 volts.
| ⇒ | If less than the specified range, test the signal B circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the EBCM. |
- If all circuits test normal, test or replace the steering position sensor.
Repair Instructions
Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
