C0460
DTC C0460
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 Descriptors
DTC C0460 00
-
Steering Wheel Angle Sensor Malfunction
DTC C0460 4B
-
Steering Wheel Angle Sensor Learn Status Calibration Not Learned
Diagnostic Fault Information
Circuit/System Description
The steering angle sensor receives a 12 V reference voltage from the electronic brake control module (EBCM). The EBCM receives high speed controller area network (CAN) message inputs from the steering angle sensor identifying the position and direction of the steering wheel rotation. The EBCM utilizes this signal to calculate the driver intended driving direction.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
C0460 00
The control module received an invalid steering wheel angle sensor signal.
C0460 4B
The steering wheel angle sensor is not calibrated or calibration is incorrect.
Action Taken When the DTC Sets
* The EBCM disables the stability control and hill start assist for the duration of the ignition cycle.
* The antilock brake system indicator turns ON.
Conditions for Clearing the DTC
* A current DTC clears when the diagnostic runs and passes.
* The EBCM will turn OFF the indicator in the next ignition cycle.
Diagnostic Aids
The car should not pull in either direction causing the steering wheel to be OFF center while driving in a straight line on a level surface.
Reference Information
Schematic Reference
Power Steering Schematics Electrical Diagrams
Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems
Data Communication Schematics [1][2]Electrical Diagrams
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly - Primary
Description and Operation
Power Steering System Description and Operation (Belt Drive EPS) Power Steering System Description and Operation (Belt Drive EPS)Power Steering System Description and Operation (Electronic Power Steering) Power Steering System (Electronic Power Steering)
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 for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool Steering Wheel Angle Position parameter. As the steering wheel is turned, the reading should travel from -550 to +550°.
Circuit/System Testing
1. Ignition ON, verify that DTC C0710 is not present.
• If the DTC is present with any symptom byte, refer to DTC C0710 C0710.
2. Inspect the B99 Steering Wheel Angle Sensor for correct installation.
• If loose or incorrect installation is diagnosed, correct the installation of the component and perform the Steering Angle Sensor Centering Procedures.
3. Ignition OFF, disconnect the harness connector at the B99 Steering Wheel Angle Sensor.
4. Test for less than 5 ohms between the ground circuit terminal 6 and ground.
• If greater than the specified value, test the ground circuit for an open/high resistance.
5. Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 5 and ground.
• If less than the specified range, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K17 Electronic Brake Control Module.
6. If all circuits test normal, replace the B99 Steering Wheel Angle Sensor and verify the DTC does not reset.
• If the DTC resets, replace the K17 Electronic Brake Control Module.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Steering Angle Sensor Replacement Removal and Replacement
* Control Module References Control Module References for EBCM replacement, programming and setup