2000 Jeep Grand Cherokee, Turn Signals Erratic / Not Working

This 2000 Jeep Grand Cherokee came in with the complaint that the turns signals would work sometimes. When it arrived at the shop they were not working at all. Experience tells me that it is probably a faulty flasher assembly but a few panels have to be removed to access the flasher relay.

The panel at the lower edge of the instrument cluster unsnaps and pulls away. It has to be maneuvered around the tilt lever.


The fuse box cover at the lower left of the dash has to be removed. It unsnaps and pulls down.

There is a 10 mm headed screw in each of the lower corners of the knee bolster.

A phillip’s head screw at the end of the dash.

Two phillip’s headed screws at the top edge. One on either side of the steering column.

In the picture below, I am pointing out that there are relays above the fuse area.

The hazard/turn signal flasher relay. With either the hazards or turns signals switched on it usually only takes a slight push to make the flasher start working again. After I was sure of the problem, I used a pair of pliers to gently grab the relay and wiggle it from its socket.

I then used a couple of small screw drivers to release the side latches that hold the cover on the relay assembly.

With the latches released I separated the two pieces.

If you look closely at the upper left solder joint you should see the crack in the solder joint.

A little touch up with a soldering gun and some electronics grade solder and this one was fixed.

Sometimes more that one solder joint will have to be repaired so look closely.

51 discussions on “2000 Jeep Grand Cherokee, Turn Signals Erratic / Not Working”

  1. I have the same problem with my 2002 Jeep Grand Cherokee. I didn’t have anyway to solder the connections so I just bought a new relay. My left turn signal still doesn’t work!! I have replaced the bulb, socket, fuse, and relay and nothing has worked. Any other suggestions?

  2. Sparky,
    You are a real life saver, (literally) driving without directionals or hazards could be fatal!!!
    Did exactly as you suggested on my 2002 Cherokee and worked like a charm!!!
    Cost: 0.00 Could not imagine what the dealer would charge!!!$$$$$$
    Thanks again!!

  3. Exact same problem — and this fixed it!

    The solder cracks were almost impossible to see, even when magnified, but resoldering the relay pins definitely fixed the issue. Sparky NAILED IT! Thank you!

    –Timmer

  4. Unbelievable!! Just as you said. Pin one on the pc board of the relay had a cold solder joint. Soldered all connections, re-assembled, works great!! Thank you so much.

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