Chevrolet Trax: Traction control/stability control indicator alfunction
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.
Diagnostic Fault Information
Circuit/System Description
The instrument cluster illuminates the traction/stability control indicator
for five seconds after the ignition is
turned ON. When the electronic brake control module detects a fault it sends a
serial data message to the
instrument cluster commanding the traction/stability control indicator on.
The body control module monitors the signal circuit from the traction control
switch. When the traction control
switch is pressed once, the body control module sends a serial data message to
the electronic brake control
module to disable the traction control system. The electronic brake control
module will request the instrument
cluster to turn the traction control off indicator ON to notify the driver of
the deactivation. When the traction
control switch is pressed and held for five seconds, the body control module
will request the electronic brake
control module to disable the traction control and the electronic stability
control. The electronic brake control
module will request the instrument cluster to turn the traction control off
indicator and the stability control off
indicator ON to notify the driver of the deactivation.
Reference Information
Schematic Reference
Antilock Brake System Schematics (Encore), Antilock Brake System
Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS -
INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT
CONNECTOR END VIEWS - INDEX - (Trax)
Description and Operation
ABS Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information.
Circuit/System Verification
- Ignition ON
- Verify the instrument cluster indicators listed below turn On and Off
when commanding the All
Indicators On and Off with a scan tool.
- Stability control off indicator
- Traction control off indicator
- Traction/stability control indicator
If any indicator does not turn On and Off
Replace the P16 Instrument Cluster.
If all indicators turns On and Off
- Verify the scan tool Electronic Brake Control Module Traction Control
Switch parameter changes
between Active and Inactive while pressing and releasing the traction
control switch.
If the parameter does not change
Refer to Circuit/System Testing.
If the parameter changes
- All OK.
Circuit/System Testing
- Ignition OFF, scan tool disconnected, and all vehicle systems OFF,
disconnect the harness connector at
the S75 Traction Control Switch. It may take up to 2 min for all vehicle
systems to power down.
- Test for less than 10 ohms between the ground circuit terminal 1 and
ground.
If 10 ohms or greater
- Ignition OFF
- Test for less than 2 ohms in the ground circuit end to end.
- If 2 ohms or greater, repair the open/high resistance in the circuit.
- If less than 2 ohms, repair the open/high resistance in the ground
connection.
If less than 10 ohms
- Ignition ON.
- Verify the scan tool Traction Control Switch parameter is Inactive.
If not Inactive
- Ignition OFF, disconnect the X2 harness connector at the K9 Body Control
Module.
- Test for infinite resistance between the signal circuit terminal
14 and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- If infinite resistance, replace the K9 Body Control Module.
If Inactive
- Install a 3 A fused jumper wire between the signal circuit terminal 4
and the ground circuit terminal 1.
- Verify the scan tool Traction Control Switch parameter is Active.
If not Active
- Ignition OFF, disconnect the X2 harness connector at the K9 Body Control
Module, ignition ON.
- Test for less than 1 V between the signal circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V
- Test for less than 2 ohms in the signal circuit end to end.
- If 2 ohms or greater, repair the open/high resistance in the circuit.
- If less than 2 ohms, replace the K9 Body Control Module.
If Active
- Test or replace the S75 Traction Control Switch.
Component Testing
- Ignition OFF, disconnect the harness connector at the S75 Traction
Control Switch.
- Test for infinite resistance between the signal terminal 4 and the
ground terminal 1 with the switch in the open position.
If less than infinite resistance
Replace the S75 Traction Control Switch.
If infinite resistance
- Test for less than 2 ohms between the signal circuit terminal 4 and the
ground terminal 1 with the switch
in the closed position.
If 2 ohms or greater
Replace the S75 Traction Control Switch.
If less than 2 ohms
- All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- Vehicle Stability Control System Switch Replacement
- Control Module References for Body Control Module, Electronic Brake
Control Module or Instrument
Cluster replacement, programming and setup
READ NEXT:
WARNING: Refer to Brake Fluid Irritant Warning .
CAUTION: Refer to Brake Fluid Effects on Paint and Electrical
Components Caution .
NOTE: Before performing the Antilock Brake System (ABS) Automated
Fig. 7: View Of Steering Angle Sensor
Steering Angle Sensor Replacement
STEERING ANGLE SENSOR CENTERING
The steering angle sensor does not require centering often. Centering of the
steering angle
SEE MORE:
If equipped, pull the rear seat
armrest down to access.
Sunglasses Storage
There may be sunglasses storage
over the driver door. Pull to open.
Underseat Storage
If equipped, there is storage under
the front passenger seat. Lift the
end of the tray up and pull it forward
to open. Push it in toward
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
DTC Descriptors
DT