93 GC Limited Electrical Problems - JeepForum.com
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > 93 GC Limited Electrical Problems

Teraflex JK HD Hinged Carrier & Adjustable Spare Tire FREE, FREE, FREE EVENT!! Save big on Lockers now till Apri2007-2016 Jeep JKU 4" X-series suspension lift **dea

Unread 05-07-2013, 12:47 AM   #1
Registered User
1993 ZJ 
Join Date: May 2013
Location: Kamloops, BC
Posts: 1
93 GC Limited Electrical Problems

Hello fellow Jeep owners,
I currently own a 1993 Grand Cherokee 5.2l Limited. Right from day one my GC has had some mysterious electrical problems that, to this day, still manage to mystify me. Everyday I start my Jeep the VIC says there is a rear light failure, although all the rear taillights seem to be working perfectly fine. Recently, the interior lights in my jeep have continued to stay on even thought all the doors and hatch are tightly closed, and my (gauge cluster/interior light dimmer slider) switch is in the off position. The final problem is to do with the temperature gauge, the temp gauge only seems to work(needle moves reads the temp/ which is usually a bit higher than the actual temp) when the brake pedal is being applied, as soon as you take your foot off the brake the needle instantly starts to fall back to zero and stay there. I don't know what to do/try, HELP would be greatly appreciated, thanks.

94GCLdriver is offline   Reply With Quote Quick reply to this message
Unread 05-07-2013, 04:20 PM   #2
Registered User
2000 TJ Wrangler 
Join Date: Jul 2012
Location: 42.127628, -71.242767
Posts: 2,857

I'm gonna take a wild shot at a few of the problems. As for the lights...did you check the back of the switch? Possible that the connections are not the best anymore. Which this is probably similar reasoning to your VIC issue (do a search and you'll see all the fun things the VIC does and how to fix).
His:00 TJ "Fiona" stuff/stuff/stuff
95 ZJ 3.5" w/242 swap-Sold
Hers: 15 JK Sahara-3" Teraflex
tucsonzj is offline   Reply With Quote Quick reply to this message
Unread 05-07-2013, 07:00 PM   #3
Registered User
1994 ZJ 
Join Date: Aug 2011
Posts: 2,666
Welcome to JF!

Verify both bulbs are working for the center brake lamp.

Locate the Lamp Outage Module (LOM) behind the small removable panel near the lower-left corner of the hatch.

Bypass the LOM by unplugging both connectors and plugging them together.

If you still get the Rear Lamp Failure message, then most likely bad solder joints in VIC. If no message, then perhaps a bulb problem (including wrong bulb type). Less likely is a faulty LOM.

Verify the dimmer slider is NOT fully right which turns on courtesy lamps.

Verify proper operation of door pin switches. Possibly not pushing in far enough. Tape a coin to each door lined up with the switch and try it.
KoreaZJ is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.