Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2002AVALANCHE 1500 2WD V8-5.3L VIN TREPAIR AND DIAGNOSISBRAKES AND TRACTION CONTROLANTILOCK BRAKES / TRACTION CONTROL SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESTRACTION OFF INDICATOR INOPERATIVE
2002 Chevrolet Avalanche 1500 2WD V8-5.3L VIN T
Traction Off Indicator Inoperative
2002 Chevrolet Avalanche 1500 2WD V8-5.3L VIN TSECTION Traction Off Indicator Inoperative
Traction Off Indicator Inoperative
Test 1-5
Test 6-15
Circuit Description
The ignition 1 voltage circuit supplies 12 volts to the traction control switch. The EBCM turns OFF the traction off indicator by applying ground to the service traction control signal circuit.
Diagnostic Aids
The traction control system can be controlled by the operator in the following ways:
^ Through operation of the traction control switch.
^ Through programming of the traction control system automatic engagement feature.
Depending on the programmed state, the operation of the traction control system, as well as the operation of the traction off and low traction indicators, differs.
Observe the data list parameters listed below in order to determine the status of the traction control system when it is unknown if the system is operational.
^ Traction Control Enabled
^ Traction Off Lamp Command
Press the traction control switch and observe the scan tool in order to verify a change in the status of the data list parameters.
Thoroughly inspect connections or circuitry that may cause an intermittent malfunction.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
5. This step simulates pressing and releasing a properly functioning traction control switch.
6. The traction control switch may be damaged if the traction control switch signal circuit is shorted to voltage.
7. This step tests if the ignition 1 voltage circuit can supply adequate power to the traction control switch.
8. This step tests if the EBCM is commanding the traction off indicator OFF.
Test 1-5
Test 6-15
Circuit Description
The ignition 1 voltage circuit supplies 12 volts to the traction control switch. The EBCM turns OFF the traction off indicator by applying ground to the service traction control signal circuit.
Diagnostic Aids
The traction control system can be controlled by the operator in the following ways:
^ Through operation of the traction control switch.
^ Through programming of the traction control system automatic engagement feature.
Depending on the programmed state, the operation of the traction control system, as well as the operation of the traction off and low traction indicators, differs.
Observe the data list parameters listed below in order to determine the status of the traction control system when it is unknown if the system is operational.
^ Traction Control Enabled
^ Traction Off Lamp Command
Press the traction control switch and observe the scan tool in order to verify a change in the status of the data list parameters.
Thoroughly inspect connections or circuitry that may cause an intermittent malfunction.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
5. This step simulates pressing and releasing a properly functioning traction control switch.
6. The traction control switch may be damaged if the traction control switch signal circuit is shorted to voltage.
7. This step tests if the ignition 1 voltage circuit can supply adequate power to the traction control switch.
8. This step tests if the EBCM is commanding the traction off indicator OFF.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.