The hazard lights on my TC35D turn on and stay on as soon as I turn the key to the "acc/on" position. Untill recently, the hazard lights have never turned on unless I pressed the rocker switch on the dash. Any idea what is wrong?
TC35D hazard warning lights always on
- Thread starter jhoko
- Start date
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Elviscaretaker
Gold Member
What trouble shooting have you done?
Look for a short at the switch... Switch bad? That would be the first place I'd start.
Look for a short at the switch... Switch bad? That would be the first place I'd start.
Elviscaretaker
Gold Member
I pulled the wire connector off the rocker switch & turn signal switch and the hazards flash as soon as I turn the key. I found no chaffed wires (or chewed by mouse). When I disconnected the light module, the hazards do not flash. I'm assuming I have a bad module? Thanks for the advise on the New Holland site.....I'm a newbee.
grsthegreat
Super Star Member
well the relay module shouldn't be getting any power unless the switch is turned on. my guess is a bad switch. the fact that they work at all tells me the relay is working just fine
EDIT: I didn't see that you pulled the wires off the switch and they still flashed....thats impossible unless theres a short between the legs of the wires going to the switch. In theory, all a hazard/turn relay does is create a momentary short circuit in the circuit that makes the lights flash instead of remaining on steady.
the switch completes the circuit which sends the power down the line to the relay, which energizes and completes the circuit.
now...maybe New Holland is doing something different. they might be routing it thru the relay module first...not sure . id need to see a schematic.
EDIT: I didn't see that you pulled the wires off the switch and they still flashed....thats impossible unless theres a short between the legs of the wires going to the switch. In theory, all a hazard/turn relay does is create a momentary short circuit in the circuit that makes the lights flash instead of remaining on steady.
the switch completes the circuit which sends the power down the line to the relay, which energizes and completes the circuit.
now...maybe New Holland is doing something different. they might be routing it thru the relay module first...not sure . id need to see a schematic.
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Elviscaretaker
Gold Member
Looks like Schmism was right 
. The guys that have been on here a lot longer than I have, have great memories of the old threads. What may be "new" to us is old hat and solved for them. You have to ask though to find out! You can search the threads for topics similar to your issue but I still forget to do that most of the time until someone reminds me like above, LOL.
Good hunting.
On rare occasions I've had relays (and "flashers) stick in the on position. Old school you can tap them to see if thats the issue but with the solid state you pretty much have to replace to find out. IMHO
. The guys that have been on here a lot longer than I have, have great memories of the old threads. What may be "new" to us is old hat and solved for them. You have to ask though to find out! You can search the threads for topics similar to your issue but I still forget to do that most of the time until someone reminds me like above, LOL.Good hunting.
On rare occasions I've had relays (and "flashers) stick in the on position. Old school you can tap them to see if thats the issue but with the solid state you pretty much have to replace to find out. IMHO
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