How do i wire my 1990 jeep cherokee to tow a trailor

Broken wire or corroded trailer connector.

Please pick the appropriate one:

1990 Jeep Cherokee
2.5 liter L4






1990 Jeep Cherokee
4.0 liter L6

DONT CUT WIRES! Go to your local parts store and purchase an inline adapter.there is a plug(inline)at rear driver side, unplug,install new adapter,supplied info w/adapter will tell you the rest.

try replacing flasher , sometimes the extra lights on trailer over load a weak flaser,also check connections at trailer lights hook up socket, hope this helps. start w/flasher.

YOU HAVE A BARE WIRE THAT IS MAKING CONTACT ON SOME METAL CAUSING IT TO SHORT OUT . FOLLOW THE WIRE FROM THE FUSE AND CHECK FOR A BAD SPOT ON THAT WIRE. GOOD LUCK!

Check the crank position sensor. I had the same problem in a 1989 cherokee 4.0, and the solution was simply to acomodate the sensor wiring. No replace was necesary

Try replacing the wire from the positive battery cable to the small terminal it is attched to. It is the smaller gauge wire that is attched to the battery terminal. Be sure to use the right gauge, don't over or undersize it. I had this problem and it did'nt stop until I changed this. Without this wire in good condition, the starter will crank too slow or not crank at all, mimicking other problems (like bad battery, bad starter , etc.). Post if it works.

Replace the crankshaft position sensor, a very common problem.

best advice go to your local parts store and pick up a haynes or chilton manual these should have all the diagrams you should need there about 15-20 bucks

If the trailer lights work on another vehicle, the fault must be in the wiring of the plug you installed