Backup alarm/backup lights issue

Illiascm · Feb 16, 2025

Dera209 said: ↑

Hello fellow truckers. I've been chasing an issue with my backup alarm and backup lights on my truck for some time now . Problem is when I'm driving forward my backup alarm and lights go off and on and, sometimes even when Im parked with truck in neutral and park brake engaged . It gets worse when I get the truck washed . I've checked wires on frame rails going to the back of the truck and found nothing wrong. I went through 2 back up switches on transmission. Have also changed the transmission shifter. The issue still persists. Because of this I put an aftermarket light to use as backup lights for which I have a switch in the cab and disconnected the alarm. Dont know what to do now please guide I want it to work normally. Truck is a 2020 PB 567 with eaton auto 10 spd .
Thanks in advance
Click to expand...

Dera209 said: ↑

Hello fellow truckers. I've been chasing an issue with my backup alarm and backup lights on my truck for some time now . Problem is when I'm driving forward my backup alarm and lights go off and on and, sometimes even when Im parked with truck in neutral and park brake engaged . It gets worse when I get the truck washed . I've checked wires on frame rails going to the back of the truck and found nothing wrong. I went through 2 back up switches on transmission. Have also changed the transmission shifter. The issue still persists. Because of this I put an aftermarket light to use as backup lights for which I have a switch in the cab and disconnected the alarm. Dont know what to do now please guide I want it to work normally. Truck is a 2020 PB 567 with eaton auto 10 spd .
Thanks in advance
Click to expand...

Illiascm · Feb 16, 2025

I'm also facing the same issue, if you got it the solution please let me know
Thanks regards
Illias cm +971505220012

Dera209 · Mar 12, 2025

Illiascm said: ↑

I'm also facing the same issue, if you got it the solution please let me know
Thanks regards
Illias cm +971505220012
Click to expand...

My fault was at the chasis module, located on the driver side under the cab.
Harness for backup lamps and lift axles were rubbed through.

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