03 Tahoe, all trailer lights work except the reverse lights. Pin is reading 9.8 volts. Any suggestions?
03 Tahoe, all trailer lights work except the reverse lights. Pin is reading 9.8 volts. Any suggestions?
Is that with the trailer connected or not? Does your trailer have brakes?Originally Posted by Esnow76
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
Couple of easy things you can try. (1) Get some spray contact cleaner and spray the male and female end of the truck and trailer connector. I also wire brush these and/or run a small drill bit by hand in the female sockets. (2) Take a VOM and run a continuity check on trailer wiring by hooking the meter to the trailer plug reverse pin/socket and the other end to the hot terminal of the reverse light with a long, small guage covered wire. If not reading, you have a broken or disconnected wire somewhere. Clean up the bulb socket ground while back there.
Trailer works fine if hooked to a different truck. That reading was without the trailer hooked up. I did spray contact cleaner
If it was a bad wire or bad connector, the voltage wouldn’t drop unless the trailer was hooked up. Is the trailer wiring on the Tahoe factory or something added on?
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
Factory
Do all the lights on the Tahoe work? How difficult would it be to take the backup light bulbs out of the sockets on the Tahoe? I’m just guessing a problem with the light circuit on the Tahoe might cause the lights on the truck to drop the voltage.
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
Everything works on the Tahoe, I could try taking them out and see what happens
Separate fuses on 03 Tahoe for trailer connection is under the hood in box, start checking there.
Mike
2019 Ranger 520L w/ 250HO ETEC G2
2011 Tracker 175TXW w/ 75HO ETEC
Fuses are good
Take the connector apart and check connections.
Mike
2019 Ranger 520L w/ 250HO ETEC G2
2011 Tracker 175TXW w/ 75HO ETEC
As unintuitive as it is, a bad connection in the connector can’t cause low voltage unless the trailer is hooked up.
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
I'm talking about the vehicle connector. From his responses of low voltage, I'm assuming OCV at vehicle conn.
Mike
2019 Ranger 520L w/ 250HO ETEC G2
2011 Tracker 175TXW w/ 75HO ETEC
We are on the same page then. I'm guessing maybe the vehicle bulbs are the load that is dropping the voltage.
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
Where are you getting your measurement from ? Check at the fuse. Pull the fuse and change it, then remeasure. Then measure at the plug. Also, check for continuity from ground plug pin to the truck frame. Should read 0.
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Check at the fuse both sides on the top with the trailer hooked up, ignition on and in reverse.
After all the checking, it ended up being the posts in the plug on the Tahoe not touching the post on the male plug from the boat. Thanks for all the suggestions
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