[sectlandscaping]

I was wondering if someone can help with this. I have headlights, flashers, brakes and reverse lights but no warning lights in rear. I have no power at the connector for the tail lights and trailer wiring. I didnt trace it back yet because the fuel tank is in the way.

I did check all the fuses and there good. I swapped some relays that were matching. No luck so far. So basically what in this truck tells the rear lights to come on? Is it the headlight switch? And do you know where the wiring harness plug in between the fuse box and bed? I want to check the connection there.

 

[98Chevy2500]

Check the multifunction switch

 

[sectlandscaping]

Check the multifunction switch

Didnt think of that. Almost forgot that the wiper blades are in slow motion too. So that could be the culprit.

Do you know how to test it?

 

[seville009]

On my 2006 F350, I had my taillight bulb sockets corrode and die, so that could be your possible issue. Easy plug and play replacement.

 

[Mark Oomkes]

Anything else acting weird? Windshield leaking water onto the BCM?

 

[Randall Ave]

In the back under the bed there's a connection plug for the harness. Do the front running lights work?

 

[sectlandscaping]

Yeah front, roof, and the ones in mirror work.

 

[Randall Ave]

Did you check for power at the plug up behind the bumper.

 

[sectlandscaping]

Yes checked that connector. Didn't between bed and cab.