Turn signals not working

HUNTER KROPEWNICKI

MEMBER
2002 JEEP GRAND CHEROKEE LAREDO
4.0L
6 CYL
4WD
AUTOMATIC
195,000 MILES

Alright. Turn signals won't work, have checked fuses, replaced relay, and switch still nothing. If I disconnect the plug from the switch and touch the high beam or hazard post said unit will turn on. But nothing from turn signals. I can't find proper voltage any where for what should be coming in from the JB. Any help is appreciated

5 Replies

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

This sounds like you could have a problem with your vehicle's Combination Flasher, which is located on the junction block. In the diagrams down below I have included a wiring diagram for your vehicle's exterior lighting as well as a diagram of the junction block with the combination flasher highlighted for you. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

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Thursday, July 18th, 2019 AT 1:29 AM

HUNTER KROPEWNICKI

MEMBER
3 POSTS

Thanks for responding. But as previously stated that has already been replaced (twice).

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Thursday, July 18th, 2019 AT 1:35 PM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

Do you have power at the fuses(23, 6, 4, 20) at the Junction Box?

Thanks,
Alex
2CarPros

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Friday, July 19th, 2019 AT 2:02 AM

HUNTER KROPEWNICKI

MEMBER
3 POSTS

Starting to trace wires. Going to try to get out there in the morning for a bit to check. I will report back with what I find when I can.

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Friday, July 19th, 2019 AT 3:11 PM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello again,

Okay. I can get you through the process to find the problem real easy. I just wanted to rule out the fuses in the circuit first. After the fuses we will be taking voltage readings, so you will need a multimeter. We will cross that bridge when, and if we have to, though. Check the fuses and get back to us with what you find out. We will go from there.

Thanks,
Alex
2CarPros