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 MANUALSFORD1993PICKUP F250, 2D PICKUP, 5.0 N, STANDARD, M5OD-R2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 32 (ANTI-LOCK BRAKE SYSTEM - 4-WHEEL)DIAGNOSISDRIVE TEST CODE 16UNWARRANTED ABS ACTIVITY TEST
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2
Unwarranted ABS Activity Test
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2SECTION Unwarranted ABS Activity Test
WARNING: This page is about a different car, the 1993 Ford Explorer and 1993 Ford Bronco. However, it is still accessible from the selected car via links, so may be relevant.
- Drive vehicle at approximately 20 MPH. If windshield wipers are on, turn wipers off. Perform light to medium normal stop. Check for brake pedal pulsation. If ABS pump motor runs, brake pedal pulsation is felt at any time during stop and ABS warning light is not on, go to SYMPTOM A under SYMPTOM TESTS.
- If pump motor runs, brake pedal pulsation is felt at any time during stop and ABS warning light comes on and stays on, go to OBTAINING DIAGNOSTIC TROUBLE CODE TEST . If pump motor does not run and brake pedal pulsation is not felt at any time during stop, but other symptoms exist, go to BRAKE SYMPTOM TEST .
- If pump motor does not run, brake pedal pulsation is not felt at any time during stop and ABS light is not on, go to HIGH SENSOR GAP TEST . If vehicle pulls immediately upon braking and pump motor does not run, go to SYMPTOM E under SYMPTOM TESTS.
- If vehicle pulls as soon as pump motor runs, check front sensor opposite pull. Go to SYMPTOM A under SYMPTOM TESTS. If pump motor runs and no pull is felt, check rear sensor. Go to SYMPTOM A under SYMPTOM TESTS.
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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.