Another no hazard, no brake light
01-20-2015, 09:11 PM
#1
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Year: 1991
Model: Cherokee
Engine: 4.0 Liter
Another no hazard, no brake light
Hey guys, I know what you're thinking, "Doesn't anyone use google anymore?!" I have and I've checked high and low and I've finally found the problem but I need advice on fixing it. I've checked all the fuses, the connectors behind the quarter panel trim, new brake light switch, and the turn signal switch works fine. So I've traced my problem down to not having power at the hazard fuse in the PDC, everything has power except the hazard fuse. So where would you guys recommend checking for power next? Take apart the PDC and clean the connectors? This may be a stupid question but where does the power come from for the hazard fuse? Any help is much appreciated as usual.
01-21-2015, 02:41 PM
#2
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Year: 1991
Model: Cherokee
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On my lunch brake right now, when I get home I'll disassemble the PDC and check the condition of the wires and continue tracing from there. Also looked at the wiring diagram and the back of my Haynes manual, looks like from the 15 amp fuse in the PDC it heads straight to the battery so hopefully this problem will be easily fixed. Thanks for any input guys.
01-21-2015, 07:38 PM
#3
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Sounds like you're taking a good approach to things.
01-21-2015, 07:50 PM
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Well I'm officially an idiot. I took apart my PDC which revealed that the power wire for the hazard fuse went into the harness instead of being fed power through the PDC. Well I was reading my 47th thread about this issue and saw someone mention that the hazard fuse is fed power from the battery through a separate small gauge wire. Well about a week ago I had put new copper ends on my battery cables and I had put off hooking up a small wire because I didn't have any connectors with a 3/8 hole for that small of a wire. I had completely forgotten about it so I went and got it hooked up and sure enough I have hazards and brake lights now. Glad I finally found the issue and on the bright side I also cleaned all my power and ground connections in the process. And thanks Cruiser, I try and always do troubleshooting and research so I don't end up asking stupid questions.
01-21-2015, 07:59 PM
#5
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Year: 1990
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Perfect. Way to stick with it and take the proper approach!!
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