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 MANUALSFORD1992F 350 2WD PICKUP V8-7.3L DSLREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSML - SELF-TEST OUTPUT/MALFUNCTION INDICATOR LAMPML - TESTING NOTES
1992 Ford F 350 2WD Pickup V8-7.3L DSL
ML - Testing Notes
1992 Ford F 350 2WD Pickup V8-7.3L DSLSECTION ML - Testing Notes
NOTE: You should enter this Pinpoint Test only when you have been directed here from Quick Test or Pinpoint Test QA.
REMEMBER
To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.
- Fuse, bulb or socket.
This Pinpoint Test is intended to diagnose only the following:
- STO/MIL Circuit
- Processor assembly
DESCRIPTION
The Malfunction Indicator Light (MIL) is intended to alert the driver at certain malfunctions in the EEC-IV system. The MIL output is turned on when the strategy detects a fault in input/output circuits. The light will remain on as long as fault causing it is present. Regulations governing this light also require that the Self-Test codes be displayed by the flashing of this light.
REMEMBER
To prevent the replacement of good components, be aware that the following non-EEC areas may be at fault.
- Fuse, bulb or socket.
This Pinpoint Test is intended to diagnose only the following:
- STO/MIL Circuit
- Processor assembly
DESCRIPTION
The Malfunction Indicator Light (MIL) is intended to alert the driver at certain malfunctions in the EEC-IV system. The MIL output is turned on when the strategy detects a fault in input/output circuits. The light will remain on as long as fault causing it is present. Regulations governing this light also require that the Self-Test codes be displayed by the flashing of this light.
RENDER: 1.0x
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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.