StabiliTrak Indicator Malfunction
StabiliTrak 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.
Diagnostic Fault Information
Circuit/System Description
The instrument cluster illuminates the traction control/stability control-active indicator for 5 seconds after ignition ON. The electronic brake control module (EBCM) will request the instrument cluster via serial data to turn the traction control/stability control-active indicator ON when a fault is detected.
The traction control system is always on in the Competitive Mode and can not be turned off. When the traction control switch is pressed, the signal circuit from the body control module (BCM) circuit is pulled low indicating the Performance Mode request. In response to this signal, the BCM sends a serial data message to the electronic brake control module (EBCM) to enable/disable the performance mode.
Reference Information
Schematic Reference
Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
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
1. Ignition ON, command the IPC Display Test ON and OFF with a scan tool. The stabilitrak indicator should turn ON and OFF when changing between the commanded states.
• If the stabilitrak indicator does not turn ON and OFF, replace the IPC.
2. Observe the scan tool Traction Control Switch parameter while pressing the traction control switch. The reading should change between Inactive and Active.
• If the reading does not change between the specified values, refer to Circuit/System Testing.
3. If all functions test normal, there are no DTCs set, and the traction control system is inoperative, replace the EBCM.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the multi-function switch - center console.
2. Test for less than 5 ohms between the ground circuit terminal 2 and ground.
• If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool Traction Control Switch parameter is Inactive.
• If not the specified value, test the signal circuit terminal 5 for a short to ground. If the circuit tests normal, replace the BCM
4. Install a 3 A fused jumper wire between the signal circuit terminal 5 and the ground circuit terminal 2. Verify the scan tool Traction Control Switch parameter is Active.
• If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
5. If all circuits test normal, test or replace the multi-function switch - center console.
Component Testing
1. Ignition OFF, disconnect the harness connector at the multi-function switch - center console.
2. Test for infinite resistance between the signal terminal 5 and the ground terminal 2 with the switch in the open position.
• If not the specified value, replace the multi-function switch - center console.
3. Test for less than 3 ohms between the signal terminal 5 and the ground terminal 2 with the switch in the closed position.
• If greater than the specified range, replace the multi-function switch - center console.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Console Trim Plate Replacement (9C3) Console Trim Plate Replacement (9C3)
* Control Module References Control Module References for BCM or instrument cluster replacement, programming and setup