Traction Control/Stability Control Indicator Malfunction

Traction Control/Stability Control Indicator Malfunction

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.

Circuit Description

The instrument cluster illuminates the Stabilitrak indicator during the instrument cluster bulb check or when the electronic brake control module (EBCM) detects a fault and sends a serial data message to the instrument cluster commanding the indicator ON.

Reference Information
Schematic Reference

Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems
Connector End View Reference

Component Connector End Views Hybrid/EV Battery Pack X1 A4
Description and Operation

ABS Description and Operation 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

When the ignition is turned ON, the Stabilitrak indicator lamp should illuminate, then after 5 seconds it should turn OFF.

Circuit/System Testing

1. Ignition ON, command the instrument cluster, All Indicators test ON and OFF with a scan tool. The Stabilitrak indicator should turn ON and OFF when changing between the commanded states.

• If the indicator does not turn ON and OFF, replace the P16 Instrument Cluster.

2. Replace the K17 EBCM.

Repair Instructions

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

Control Module References Control Module References for EBCM or instrument cluster replacement, programming and setup