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.
A087 - Abs Red Brake Telltale Circuit Open
1993 Chevrolet Corsica 3.1 TSECTION A087 - Abs Red Brake Telltale Circuit Open
This test verifies EBCM has continuity to Red BRAKE telltale light. Because other systems also use this circuit, a short to ground cannot be detected. ABS warning light will flash to indicate malfunction, but ABS will not be disabled.
NOTE:
Test number refers to number on diagnostic chart.
- This step determines if fault is still present.
- This step indicates if EBCM and circuit has ability to complete ground to Red BRAKE telltale light.
- This step tests for circuit completion to instrument cluster.
- This step determines if open circuit is due to EBCM failure or BRAKE telltale.
- This step checks for an open in park brake circuitry.
- This step determines if malfunction is intermittent.
- This step verifies condition of fuse.
RENDER: 1.0x
NO RELATED
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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.