E 350 Van L6-300 4.9L VIN E 1-bbl (1982)
Marker Lamp: Testing and Inspection
Headlights/Marker/Park/License
Troubleshooting Hints
No Headlights/Park Lights ON
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Check for voltage at R/Y wire of Dimmer Switch. If bad, check continuity of wire and Light Switch
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Check continuity of Dimmer Switch. Replace if bad
No Hi And Lo Beam On One Side
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Make sure ground connection on that side is clean and tight
No Exterior Lights
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Look for frayed or damaged wires, or loose connections
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Make sure C411 is tight.
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Check for voltage at BK/O wire of Light Switch. If bad, check harness back to Battery.
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If Instrument Illumination lights work, check continuity of BR wire in harness.
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If no instrument lights work, check continuity of Light Switch.
One Light Does Not Work
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Check bulb.
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Check for frayed or damaged wires, or loose connections.
