Chevrolet Trax: DTC C0475: Electric steering motor
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 Descriptors
DTC C0475 00
Electric Steering Motor Circuit Malfunction
DTC C0475 64
Electric Steering Motor Slip Detected
Circuit/System Description
The power steering control module continuously monitors the voltage and current levels being commanded to the 3-phase steering assist motor. The power steering control module compares the desired and actual current levels to detect malfunctions in the internal power steering assist motor circuits.
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 internal power steering assist motor circuits.
Action Taken When the DTC Sets
- The DTC is stored in memory.
- No steering assist.
Conditions for Clearing the DTC
A 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 Testing
- Verify that DTC C0475 is not set.
- If the DTC is set
Replace the K43 Power Steering Control Module.
- If the DTC is not set
- 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.
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Review Strategy Based Diagnosis for an overview of the diagnostic
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Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
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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
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Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Usage- Fluid/Lubricant
Engine Oil
Use only engine oil meeting the dexos1 specification of the proper SAE
viscosity grade. Look for the dexos1 approved logo for GM approved
engine oil. See Engine Oil
Engine Coolant
50/50 mixture of clean, drinkable water and u
Traction Control/Electronic Stability Control
System Operation
If equipped, the vehicle has a
Traction Control System (TCS) and
StabiliTrak, an electronic stability
control system. These systems help
limit wheel slip and assist the driver
in maintaining control, especially on
slippery road conditions.
TCS activates if it senses that any
of the
