C0176

DTC C0176

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 C0176 54
- System Thermal Error Temperature High

Circuit/System Description

The PSCM uses a combination of commanded motor voltage and current levels to calculate an estimated power steering system temperature. If the PSCM detects a high system temperature event is occurring, the amount of assist is reduced to lower system temperature to prevent thermal damage to the power steering components.

Condition for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The PSCM detects a high system temperature.

Action Taken When the DTC Sets

* DTC C0176 54 is stored in memory.
* Steering assist is reduced.

Conditions for Clearing the DTC

* A current DTC will clear when the power steering system temperature returns to normal.
* A history DTC will clear after 100 consecutive malfunction-free ignition cycles.

Diagnostic Aids

* DTC C0176 54 does not indicate that a malfunction has occurred. Rather that the PSCM had to limit current to the power steering motor to avoid thermal damage to the power steering system components.
* Ensure that no steering components down stream of the power steering gear assembly, universal joints, ball joints or tie rod ends are mechanically binding.

Reference Information
Connector End View Reference

Component Connector End Views 1-2 Shift Solenoid (SS) Valve (M30)
Description and Operation

Power Steering System Description and Operation (Hydraulic Power Steering) Power Steering System (Hydraulic Power Steering)Power Steering System Description and Operation (EPS) Power Steering System (EPS)
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

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.