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.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G3500, VAN PASSENGER EXTENDED, 6.5 FREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESANTI-LOCK BRAKESANTI-LOCK BRAKE SYSTEM - 4WALSYMPTOM TESTSTEST A: ABS INDICATOR ALWAYS ON
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 F
Test A: Abs Indicator Always On
2001 Chevrolet Chevy Express G3500, Van Passenger Extended, 6.5 FSECTION Test A: Abs Indicator Always On
- Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
- Turn ignition off for 5 seconds. Turn ignition on while observing the ABS indicator light. If ABS indicator illuminates for 2 seconds then turns off, problem is intermittent. If ABS indicator does not illuminate for 2 seconds or does not turn off, go to next step.
- Turn ignition off. Disconnect EBCM 10-pin harness connector. Turn ignition on. If ABS indicator illuminates, go to next step. If ABS indicator does not illuminate, go to step 7 .
- Turn ignition off. Disconnect instrument panel cluster harness connector. Connect a test light between ignition 1 voltage circuit and ABS indicator failure control circuit. Turn ignition on. If test light illuminates, go to next step. If test light does not illuminate, go to step 6 .
- Repair short to ground in ABS indicator failure control circuit. After repairs, go to step 8 .
- Replace instrument panel cluster. After replacing cluster, go to step 8 .
- Replace EBCM and perform tire size calibration procedure using scan tool. After replacing EBCM, go to next step.
- Turn ignition off for 5 seconds. Turn ignition on while observing ABS indicator light. If ABS indicator light illuminate for 2 seconds then turns off, system is okay. If ABS indicator light does not illuminate, go to step 3 .
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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.