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 MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 21 (ANALOG INSTRUMENT PANELS)SYSTEM TESTSTEST K: ABS INDICATOR INOPERATIVETESTING
2004 Oldsmobile Bravada AWD
Test K: Abs Indicator Inoperative: Testing
2004 Oldsmobile Bravada AWDSECTION Testing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 GMC Savana Special, 2001 GMC Savana Camper Special, 2001 GMC Savana, 2001 Chevrolet RV Cutaway, and 2001 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- If ABS diagnostic system check has been performed, go to next step. If ABS diagnostic system check has not been performed, go to ANTI-LOCK BRAKE SYSTEM DIAGNOSTIC SYSTEM CHECK in SELF DIAGNOSTIC SYSTEM.
- Turn ignition switch to OFF position for 5 seconds. Turn ignition switch to RUN position while observing ABS indicator. If ABS indicator does not illuminate, go to next step. If ABS indicator illuminates, go to DIAGNOSTIC AIDS .
- Turn ignition switch to OFF position. Disconnect EBCM Natural 10-pin harness connector. Connect a fused jumper wire between ground and EBCM harness connector terminal "B" (Light Green wire). Turn ignition switch to RUN position. If ABS indicator does not illuminate, go to next step. If ABS indicator illuminates, go to step 7 .
- Turn ignition switch to OFF position. Reconnect EBCM connector. Disconnect IPC Black 34-pin harness connector. Connect test light between IPC harness connector terminals A1 (Light Green wire) and B17 (Pink wire). Turn ignition switch to RUN position. If test light does not illuminate, go to next step. If test light illuminates, go to step 6 .
- Repair open in Light Green wire between EBCM and IPC. After repair, go to step 11 .
- Check ABS indicator bulb for an open filament. If bulb is okay, go to step 8 . If bulb is not okay, replace bulb. After repair, go to step 11 .
- Check EBCM connector for intermittent or poor terminal contact. If terminal contact is okay, go to step 10 . If terminal contact is not okay, repair as necessary. After repair, go to step 11 .
- Check IPC connector for intermittent or poor terminal contact. If terminal contact is okay, go to next step. If terminal contact is not okay, repair as necessary. After repair, go to step 11 .
- Replace IPC. After repair, go to step 11
- Replace EBCM. Perform tire size calibration procedure. See PARK/NEUTRAL POSITION SWITCH under ADJUSTMENTS. After repair, go to next step.
- Turn ignition switch to OFF position for 5 seconds. Turn ignition switch to RUN position while observing ABS indicator. If ABS indicator illuminates for 2 seconds, then turns off, system is okay at this time. If ABS indicator does not illuminate or illuminates and remains on, 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.