C044A

DTC C044A

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

Engine running.

Conditions for Setting the DTC

The power steering control module detects a invalid engine speed signal on serial data.

Action Taken When the DTC Sets

DTC C044A is stored in memory.

Conditions for Clearing the DTC

* The DTC clears when the diagnostic runs and passes

* 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 (Electronic Power Steering) Description and Operation

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 that no other DTCs are set except for C044A.

• If any other DTCs are set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle

• If no other DTCs are set

3. Replace the K43 Power Steering Control Module.

4. Verify that DTC C044A does not set while operating the vehicle within the Conditions for Running the DTC.

• If DTC C044A sets
Replace the K20 Engine Control Module.

• If the DTC C044A does not set

5. All OK.

Repair Instructions

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

* Steering Gear Replacement (LUK, MHH) Steering Gear Replacement (LCV, MH8) Steering Gear Replacement (MH8)Steering Gear Replacement (LTG, M7W)

* Power Steering Assist Motor Replacement Service and Repair

* Control Module References Control Module References for Power Steering Control Module or Engine Control Module replacement, programming and setup.