Headlights, signal lights and side work lights won't work. Turn indicators on dash don't flash either. Fuse for lights is good. Hazard lights and top of cab work lights are okay. Can anyone tell me if there is a relay under the hood that might cause this?
Headlights don't work on my L3560 with cab.
- Thread starter RNS
- Start date
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BubbaJr
Platinum Member
Did you just look at the fuses, or did you test them with an ohm meter?
Joe
Joe
David_Kb7uns
Veteran Member
There should be some fuses up by the battery, or sometimes the accessory feed off the battery can have a loose connection.
David
David
Fallon
Super Member
Those fuses just feed the primary fuse box I believe. All the lights & computers should be fed out of the fuse box in the cab (or operators station for non-cab machines). The uuse or 2 up front are big slow blow ones around 40-60@.
PILOON
Super Star Member
Most often many electrical problems end up being grounds.
Carefully check them all, sand or grind to have 'metal to metal' contact.
If in doubt add a pigtail type ground loop.
Carefully check them all, sand or grind to have 'metal to metal' contact.
If in doubt add a pigtail type ground loop.
I thought about ground too even though that isn't what it is like. Usually with a ground issue there would still be some current but this problem gives me zero current. I still went ahead and tried grounding direct to the negative at one plug and no difference.
David_Kb7uns
Veteran Member
Yes, the big slow burn fuses up front are the same for this model. Stopped at a dealership and talked to the service manager today. He looked at the wiring schematic and there are no other relays. I'm beginning to think there is a bad harness connection. I'll just have to dig in and hunt it down.
