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Makes 🢒 Cadillac 🢒 2008 🢒 STS 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 DTC C0710

DTC C0710 Without JL7

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

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

    • The ignition is ON.
    • Ignition voltage is greater than 8 volts.
    • The steering wheel position sensor has been powered ON for 0.2 second.

C0710 1A

    • The ignition is ON.
    • Ignition voltage is greater than 8 volts.
    • The steering wheel position sensor is centered.

C0710 1F

    • The ignition is ON.
    • Ignition voltage is greater than 8 volts.
    • The steering wheel position sensor has been powered ON for 0.2 second.
    • The steering rate of position signal A is less than 80 degrees per second.

C0710 52

    • The ignition is ON.
    • 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 SERVICE STABILITY SYS 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

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for Scan Tool Information

Circuit/System Testing
  1. Ignition OFF, disconnect the harness connector at the steering position sensor.
  2. Test for less than 5 ohms of resistance between the low reference circuit terminal 2 and ground.
    3. ⇒If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.
  3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal 1 and ground.
    4. ⇒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.
  4. Verify the scan tool SWPS signal A parameter is less than 0.2 volt.
    5. ⇒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.
  5. Verify the scan tool SWPS signal B parameter is less than 0.2 volt.
  6. 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.
  7. 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.
    8. ⇒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.
  8. 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.
    9. ⇒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.
  9. If all circuits test normal, test or replace the steering position sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Steering Wheel Position Sensor or Steering Shaft Lower Bearing Replacement
    •  Control Module References for EBCM replacement, setup, and programming

DTC C0710 With JL7

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC C0710 09: Steering Angle Sensor Signal Rate of Change Above Threshold

DTC C0710 39: Steering Angle Sensor Signal Internal Electronic Failure

DTC C0710 75: Steering Angle Sensor Signal Above Allowable Range

DTC C0710 4B: Steering Angle Sensor Signal Calibration not Learned

Circuit/System Description

The steering angle sensor measures the steering wheel position with 2 sensing inputs. It communicates the steering angle position and the steering angular velocity on the chassis CAN. The supervisor control module determines the state of health of the steering angle sensor based on the data the sensor is communication and other vehicle data that can be correlated.

Conditions for Running the DTC

C0710 09, 75 or 4B

The steering angle sensor signal rate of change above threshold.

    • The ignition is ON.
    • DTC C0561 71 is not set as a result of a steering angle sensor circuit or internal fault during the current ignition cycle.

C0710 39

The steering angle sensor signal rate of change above threshold.

    • The ignition is ON.
    • Stability control system is enabled and functioning without a current fault set.
    • The power steering control module (PSCM) is functioning without a current fault set.
    • The yaw rate sensor, lateral acceleration sensor, longitudinal acceleration sensor and steering angle sensor have not set a DTC during the current ignition cycle.
    • The vehicle is driving at a speed greater than 6 meters/second (22 Km/h)

Conditions for Setting the DTC

C0710 09

The steering angle sensor signal rate of change above threshold.

C0710 4B

The steering angle sensor signal calibration not learned, or can not be learned.

C0710 39

The steering angle sensor signal internal electronic failure

C0710 75

The steering position signal above allowable range.

Action Taken When the DTC Sets
    • The VSCM disables the vehicle stability enhancement system (VSES) for the duration of the ignition cycle.
    • The driver information center (DIC) displays the SERVICE STABILITY SYS message.
    • The ABS remains functional.

Diagnostic Aids
    • During diagnosis, park the vehicle on a level surface.
    •  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.

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

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for Scan Tool Information

Circuit/System Verification
  1. With the scan tool perform the Steering Angle Sensor Calibration.
  2. Verify the DTC does not reset.

Circuit/System Testing
  1. Ignition OFF, disconnect the harness connector at the steering angle sensor.
  2. Test for less than 1 ohm between the ground circuit terminal 6 and ground.
    3. ⇒If greater than the specified range, test for an open/high resistance in the ground circuit.
  3. Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 5 and ground.
    4. ⇒ If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
  4. Ignition OFF, disconnect the harness connector X3 at the Vehicle Stability Control Module.
  5. Ignition ON, test for 0 volts between the communication circuit terminal 72 and ground.
    6. ⇒If greater than the specified value, test the communication circuit for a short to voltage.
  6. Test for 0 volts between the communication circuit terminal 52 and ground.
    7. ⇒If greater than the specified value, test the communication circuit for a short to voltage.
  7. Ignition OFF, test for infinite resistance between the communication circuit terminal 72 and ground.
    8. ⇒If not the specified value, test the communication circuit for a short to ground.
  8. Test for infinite resistance between the communication circuit terminal 52 and ground.
    9. ⇒If not the specified value, test the communication circuit for a short to ground.
  9. Test for less than 1 ohm between the communication circuit terminals 72 and terminal 3.
    10. ⇒If greater than the specified range, test the communication circuit for an open/high resistance.
  10. Test for less than 1 ohm between the communication circuit terminals 52 and terminal 1.
    11. ⇒If greater than the specified range, test the communication circuit for an open/high resistance.
  11. Test for infinite resistance between the communication circuit 72 and the communication circuit 52.
    12. ⇒If not the specified value, test the communication circuits for a short together.
  12. If all circuits test normal, replace the steering angle sensor.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Steering Wheel Position Sensor or Steering Shaft Lower Bearing Replacement
    •  Control Module References for EBCM replacement, setup, and programming