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Cstoliker's avatar
Cstoliker
Explorer
Aug 18, 2013

Reverse lights only work with parking/headlights on

98 Ford E Super duty Tioga. Inspection time I was checking the lights an noticed the reverse lights only come on when parking/headlights are on.
I re wired all the parking lights a while ago. The reverse lights have good ground 00.2-3 ohm from out side of bulb to frame. So it's not pulling the ground through a parking light bulb.

All other lights work normally. The reverse lights only get +12v at the socket when the transition is in reverse and the parking lights are on.

Is there something in the steering column that could be casing this?

11 Replies

  • Ok the problem deepens. Replaced #14 fuse engine compartment. And reverse lights work normally. But marker/parking lights won't turn off once turned on!
    Marker lights turn off when #14 fuse is pulled. Or "D" relay is removed. They can then be reinserted and the marker lights will remain off untill turned on from inside cab.
    I swiched "C" & "D" relays. Same results.

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