C044A

DTC C044A (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 C044A 71
- Steering System Engine Speed Signal Circuit Invalid Data

Circuit/System Description

The power steering control module receives the engine speed signal from the engine control module.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The power steering control module detects a invalid engine speed signal on the CAN Bus.

Action Taken When the DTC Sets

* DTC C044A is stored in memory.

* The driver information center displays the SERVICE POWER STEERING warning message.

Conditions for Clearing the DTC

* A current DTC will clear on the next malfunction-free ignition cycle.

* A history DTC will clear after 40 consecutive malfunction-free ignition cycles.

Reference Information

Schematic Reference

Power Steering Schematics Electrical Diagrams

Connector End View Reference

Component Connector End Views Sunshade - Left

Description and Operation

Power Steering System Description and Operation (Hydraulic Power Steering (NJ0)) Power Steering System Description and Operation (Hydraulic Power Steering (NJ0))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. Verify that DTC U0401 is not set.

• If DTC is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle

• If the DTC is not set

2. Verify that DTC C044A 71 is not set.

• If the DTC is set
Replace the K43 Power Steering Control Module.

• If the DTC is not set

3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Power Steering Assist Motor Replacement Service and Repair for power steering control module replacement

* Control Module References Control Module References for power steering control module replacement, programming and setup