C0460
DTC C0460
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview)provides an overview of each diagnostic category.
DTC Descriptors
DTC C0460 00
- Steering Position Signal
DTC C0460 42
- Steering Position Signal Initialization Not Accomplished
DTC C0460 4B
- Steering Position Signal Calibration Not Accomplished
DTC C0460 5A
- Steering Position Signal Not Plausible
DTC C0460 71
- Steering Position Signal Internal Failure
DTC C0460 72
- Steering Position Signal Rolling Count Invalid
Diagnostic Fault Information
Circuit/System Description
The electronic brake control module (EBCM) provides the steering angle sensor a 12-volt ignition supply voltage.
The steering angle sensor provides a serial data signal to the EBCM that represents the steering wheel degree of rotation. The EBCM utilizes this signal to calculate the driver intended driving direction.
Conditions for Running the DTC
* Ignition ON.
* Ignition voltage is greater than 10 volts.
Conditions for Setting the DTC
* Steering angle sensor has an internal failure.
* Steering angle sensor has not been initialized.
* Steering angle sensor offset is greater than 15 degrees.
Action Taken When the DTC Sets
* Vehicle stability enhancement system (VSES) is disabled.
* A DIC message and/or a warning indicator may be displayed.
Conditions for Clearing the DTC
* The condition for the DTC is no longer present.
* The EBCM clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.
Reference Information
Schematic Reference
Antilock Brake System Schematics (Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
ABS Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
1. With the scan tool perform the steering position sensor calibration.
2. Clear DTC and operate the vehicle within the conditions for running the DTC. Verify the DTC does not reset.
• If the DTC resets, refer to circuit testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the EBCM.
2. Ignition ON, test for less than 1 volt between the following circuit terminals listed below and ground.
* Reference voltage circuit terminal 5
* Low Reference circuit terminal 40
* CAN Bus High Serial Data circuit terminal 18
* CAN Bus Low Serial Data circuit terminal 19
• If greater than the specified range, test the appropriate circuit for a short to voltage.
3. Ignition OFF, test for infinite resistance between the following circuit terminals listed below and ground.
* Reference voltage circuit terminal 5
* Low Reference circuit terminal 40
* CAN Bus High Serial Data circuit terminal 18
* CAN Bus Low Serial Data circuit terminal 19
• If less than the specified value, test the appropriate circuit for a short to ground.
4. Ignition OFF, disconnect the harness connector at the Steering Angle Sensor.
5. Test for less than 2 ohms between the following circuit terminals listed below.
* Reference voltage circuit terminal 5 at the EBCM harness connector and terminal 1 at the steering angle sensor harness connector.
* Low Reference circuit terminal 40 at the EBCM harness connector and terminal 6 at the steering angle sensor harness connector
* CAN Bus High Serial Data circuit terminal 18 at the EBCM harness connector and terminal 3 at the steering angle sensor harness connector.
* CAN Bus Low Serial Data circuit terminal 19 at the EBCM harness connector and terminal 4 at the steering angle sensor harness connector.
• If greater than the specified value, test the appropriate circuit for an open/high resistance.
6. If all circuits test normal, replace the Steering Angle Sensor. If the DTC resets replace the EBCM.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Steering Angle Sensor Centering ()
* Control Module References (Programming and Relearning)for EBCM replacement, setup, and programming