Where is the backup light switch located?
F-150 Supercab 4X4 Auto Trans Bulbs OK no lights in reverse Power to No 5 Fuse Fuse is good. (Under hood power distribution box) All fuses and relays tested OK.
??Faulty switch?? 2003 F150 XLT 4WD Triton V8
좋은 질문 입니까?
댓글 9개
Thanks oldturkey03 - All functions seem to be working except for the backup lights, so for now I will assume that the TR sensor is working OK. I will now attempt to trace the wiring to the backup lights looking for a short or broken wire. Can you tell me which mini fuse and/or relay is associated to the backup lights?
Tom Richards 의
Dumb question but did you check the bulbs and their connection? My Suburban has lose connections and does this with daytime lights. If I recall on my 2003 Expedition (Built on a F-150) it should be on the left stick, but It broke down 3 or 4 years ago so it has been a while.
MaxAwesomeness GB (Max) 의
Yes I did, and both bulbs tested good. I tested the connections at both bulbs, and both showed a closed circuit, which leads me to suspect a short somewhere. However, I am going to repeat the test, but this time with both bulbs out at the same time. I think that maybe leaving the right side bulb in while testing the circuit at the left side was giving me a false reading, and visa versa. Maybe do this tomorrow - pouring rain right now! And it is not a dumb question.
Tom Richards 의
@iamretired I would not be so quick as to dismiss the TR sensor. I think that beast is merely using a cam system from the shifter linkage to close a switch. I believe there are some adjustments you could make. check original answer for wiring update
oldturkey03 의
Thanks old turkey03 - Me thinks the next thing I will do is to enlist my neighbours help and check out the switch adjustments, It sounds like a two person job, one to work, and one to watch.
Tom Richards 의
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