Traction Control/Stability Control Indicator Malfunction
Traction Control/Stability Control Indicator Malfunction (Without LSA)
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 panel cluster illuminates the Stabilitrak indicator during the bulb check or when the electronic brake control module detects a fault and sends a serial data message to the instrument panel 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 A/C Compressor Clutch
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, with a scan tool command the IPC display test ON and OFF. The Stabilitrak indicator should turn ON and OFF.
• If the indicator does not turn ON and OFF, replace the IPC.
2. Observe the scan tool body control module (BCM) Traction Control Switch parameter while pressing and releasing the traction control switch. The reading should change between Active and Inactive.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the Radio/HVAC Control.
2. Test for less than 5 ohms between the ground circuit terminal 16 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 14 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 14 and the ground circuit terminal 16. 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 traction control switch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the traction control switch.
2. Test for infinite resistance between the signal terminal 14 and the ground terminal 16 with the switch in the open position.
• If not the specified value, replace the traction control switch.
3. Test for less than 3 ohms between the signal terminal 14 and the ground terminal 16 with the switch in the closed position.
• If greater than the specified range, replace the traction control switch.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Instrument Panel Center Compartment Replacement Instrument Panel Center Compartment Replacement
* Control Module References Control Module References for BCM replacement, programming and setup