C0460
DTC C0460 (NJ1)
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 C0460 00
- Steering Wheel Angle Sensor Malfunction
DTC C0460 4B
- Steering Wheel Angle Sensor Calibration Not Learned
Diagnostic Fault Information
Circuit/System Description
The steering wheel angle sensor receives a 12 V reference from the electronic brake control module. The electronic brake control module receives serial data message inputs from the steering angle sensor identifying the position and direction of the steering wheel rotation. The module utilizes this signal to calculate the driver intended driving direction.
Conditions for Running the DTC
The condition for running the DTC will not occur until the initialization phase has been completed. The initialization of the electronic brake control module occurs when the following conditions have been met:
* Ignition voltage is greater than 8 V.
* The initialization happens once each ignition cycle when the vehicle speed is greater than 20 km/h (12 MPH) and the vehicle is driven in a straight line without the brake pedal being applied.
Conditions for Setting the DTC
DTC C0460 00
* Steering angle signal is not valid.
* Steering angle signal line is open.
* Angle signal cycle time is out of range.
* Angle signal duty is out of range.
DTC C0460 4B
Steering sensor zero position is not set.
Action Taken When the DTC Sets
* DTC C0460 is stored in memory.
* No steering assist.
Conditions for Clearing the DTC
A current DTC will clear on the next malfunction-free ignition cycle.
Reference Information
Schematic Reference
Power Steering Schematics Electrical Diagrams
Connector End View Reference
Component Connector End Views Sunshade - Left (D61)
Description and Operation
Power Steering System Description and Operation (Hydraulic Power Steering) Power Steering System (Hydraulic Power Steering)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
1. Ignition ON.
2. Verify the scan tool Steering Wheel Angle parameter value constant change from -550 to +550° as the steering wheel is turned through its entire range from left to right.
• If the parameter does not change
Refer to Circuit/System Testing.
• If the parameter changes
3. All OK.
DTC C0460 4B
1. Ignition ON.
2. Verify that DTC C0460 4B is not set.
• If DTC C0460 4B is set
Perform the Steering Angle Sensor Centering Procedures.
• If DTC C0460 4B is not set
3. Ignition OFF and all vehicle systems OFF. It may take up to 2 min for all vehicle systems to power down. Disconnect the harness connector at the B99 Steering Wheel Angle Sensor.
4. Test for less than 10 ohms between the ground circuit terminal 6 and ground.
• If 10 ohms or greater
1. Ignition OFF.
2. Test for less than 2 ohms in the ground circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, repair the open/high resistance in the ground connection.
• If less than 10 ohms
5. Ignition ON.
6. Verify that a test lamp illuminates between the ignition circuit terminal 5 and ground.
• If the test lamp does not illuminate
1. Ignition OFF, disconnect the harness connector at the K17 Electronic Brake Control Module.
2. Test for infinite resistance between the ignition circuit and ground.
• If less than infinite resistance, repair the short to ground on the circuit.
• If infinite resistance.
3. Test for less than 2 ohms in the ignition circuit end to end.
• If 2 ohms or greater, repair the open/high resistance in the circuit.
• If less than 2 ohms, replace the K17 Electronic Brake Control Module.
• If the test lamp illuminates
7. Replace the B99 Steering Wheel Angle Sensor and verify the DTC does not reset.
8. Verify the DTC does not set while operating the vehicle under the Conditions for Running the DTC.
• If the DTC sets
Replace the module that the DTC sets.
• If DTC does not set
9. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Power Steering Assist Motor Replacement Service and Repair
* Control Module References Control Module References for Control Module replacement, programming and setup.