Chevrolet Trax: DTC C0545: Steering wheel torque sensor
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 C0545 00
Steering Wheel Torque Sensor Malfunction
DTC C0545 4B
Steering Wheel Torque Sensor Calibration Not Learned
Circuit/System Description
The power steering control module continuously monitors the digital torque sensor's torque signal. As the steering wheel is turned and torsional twist is applied to the steering shaft, the steering input and output shafts are monitored via the torque signal circuit and then processed by the power steering control module to calculate the steering torque.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
The power steering control module detects a short to ground, short to voltage, or an open/high resistance on any of the torque sensor circuits.
Action Taken When the DTC Sets
- DTC C0545 is stored in memory.
- No steering assist.
Conditions for Clearing the DTC
history DTC will clear after 40 consecutive malfunction-free ignition cycles.
Reference Information
Schematic Reference
Power Steering Schematics (Encore), Power Steering Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Power Steering System 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
- Ignition ON.
- Verify the scan tool Steering Input Torque parameter changes when turning the steering wheel.
- If the parameter does not change
- Program the K43 Power Steering Control Module.
- Verify the DTC does not set.
- If the DTC sets, replace the Steering Column.
- If the DTC does not set
- All OK.
- If the parameter changes
- All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- Steering Column Replacement (Mexico, N40) , Steering Column Replacement (Canada, NJ1) , Steering Column Replacement (United States, NJ1)
- Control Module References for power steering control module replacement, programming and setup.
READ NEXT:
DTC C056D: Electronic control unit hardware
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.
Diag
Power steering system test
Special Tools
CH-44721 Power Steering Analyzer
For equivalent regional tools, refer to Special Tools.
Rack and Pinion System
Fig. 3: Testing Rack and Pinion System Pressures
Test Description
The
SEE MORE:
Data Communications - Diagnostic information and procedures
DIAGNOSTIC CODE INDEX
CONTROL MODULE U CODE LIST
This list includes all Data Communications related U-code DTCs in
alphanumeric order with descriptors for all
devices. Not all DTCs listed will be applicable to all vehicles.
For symptom byte information, refer to Symptom Byte List .
Control Mod
Heated oxygen and oxygen sensor caution
CAUTION: Do not remove the pigtail from either the heated oxygen sensor
(HO2S) or
the oxygen sensor (O2S). Removing the pigtail or the connector will affect
sensor operation.
Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the inline
electrical connector and the louvered end free of
