Active Front Steering Warning Indicator Malfunction

Active Front Steering Warning Indicator Malfunction

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.

Circuit/System Description

The instrument panel cluster (IPC) illuminates the Power Steering warning indicator by supplying ground to the lamp. The power steering control module (PSCM) sends a serial data messages to the IPC, in order to command the indicator ON or OFF.

Reference Information
Schematic Reference

Power Steering Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Active Front Steering Description and Operation (Active Front 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 (Programming and Relearning)for scan tool information

Circuit Verification

Ignition ON, observe the AFS indicator to turn ON then OFF during the IPC bulb test.

Circuit/System Testing

Important: Allow the Active Front Steering system to cool down before performing this test.


1. Ignition On, with a scan tool command the Scan Tool IPC display test ON and OFF. The AFS indicator should turn ON and OFF.

• If the AFS warning lamp does not turn ON and OFF, replace the IPC.

Repair Instructions

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