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 38 (ANTI-LOCK)TESTINGTEST A - YELLOW LIGHT OFF & DOES NOT SELF-CHECK
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2
Test A - Yellow Light Off & Does Not Self-Check
1993 Ford Pickup F250, 2D Pickup, 5.0 N, Standard, M5OD-R2SECTION Test A - Yellow Light Off & Does Not Self-Check
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 1992 Ford Ranger, 1992 Ford RV Cutaway, 1992 Ford Pickup, 1992 Ford Explorer, and 1992 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure control module connector is fully engaged. If not, engage connector, and retest system. If connector is engaged, disconnect battery. Unplug control module connector. Measure resistance between connector pin No. 4 and ground. See Fig 1 .
- If resistance is one ohm or more, check for open circuit between pin No. 4 and ground. If resistance is less than one ohm, reconnect battery. Turn ignition on. Check voltage at connector pin No. 7. If voltage is 9 volts or more, replace control module.
- If voltage is less than 9 volts, check Yellow ABS light 15-amp fuse. If fuse is bad, check for short between fuse and warning lights. Replace fuse and retest system. If fuse is okay, check voltage at fuse. If voltage is less than 9 volts, check fuse panel or vehicle electrical system.
- If voltage is 9 volts or more, check warning light bulb. If bulb is bad, replace bulb and retest system. If bulb is okay, repair open in wiring between warning light fuse and control module connector pin No. 7.
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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.