bambam0417

Today i turned my jeep off and restarted a few minuted later and for some reason my radio, dome light, and gauges in the cluster stopped working. I checked the fuses and they are all good but it was cold and late so I haven't gotten any further yet. Besides those issues the jeep is running perfectly fine. Even drove it around the rest of the day. I tried the cluster test mode. Everything works but needles on the gauges don't budge. Any Ideas that could point me in the right direction? Going to have to guess my mph on the way into work tomorrow morning.

Jeepster242

Has any electrical work been done on it recently, if there was any work done, that could possibly point you in the right direction, if any mistakes were made. If you have a multimeter/voltmeter you can check for voltage at the connectors for those items you said. (Radio, dome light, gauges. That could help you narrow it down a bit). I doubt there is voltage there, but just to verify the obvious! Anyway, If you don't have voltage, then you could start tracing those wires back until you find a break. More likely, i'll bet it's at wherever the wiring for those 3 items meet, something may have caused those wires to break or maybe melt somehow. Good luck!

bambam0417

I installed remote start a few weeks back, but I was only dealing with the ignition, start signal, and brake light wires. Other then that there really hasn't been anything done to the electrical system.

freegdr

You check both fuse boxes ? And confirm power in and out of fuse ? http://www.lunghd.com/Tech_Articles/...tification.htm

Oddballmotorsports

I would definitely check all the wires near where you were working with the remote start... sounds too coincidental.. I would look there first...

bambam0417

Well while I was at work today I decided to check the fuse box in the engine compartment. I found the IOD fuse blown and when I replace it the fuse blows right away. so there is a short some where. And what does IOD stand for?

I don't think I disturbed anything around there but I will give it a second look.

prcherokee

The term ignition-off draw identifies a normal condition
where power is being drained from the battery
with the ignition switch in the Off position. The IOD
fuse feeds the memory and sleep mode functions for
many of the electronic modules in the vehicle as well
as various other accessories that require battery current
when the ignition switch is in the Off position,
including the clock.

From FSM.

freegdr

Disconnect the remote start first thing id do .

freegdr

Seem there a few different issue that can cause this id look into the wires on manifold cure first... .......https://www.google.com/#q=1998+xj+ch...ined=undefined

prcherokee

Underhood mercury lamp switch,Transmission control Module,Cargo lamp switch,Instrument cluster,Radio,Left and right courtesy lamps,Left and Right visor vanity lamp,Dome lamp,Compass and Overhead module.
The IOD feeds all these components.

Anony

Your ignition and headlamp switches have a sense wire that connects to the interface drivers (brains) of the instrument cluster. The instrument clusters interface drivers connect to the CCD bus, used by the PCM to control gauges, talk to other modules etc.

There are also many other connections to and from to the instrument cluster ....

such as ..

Ign. switch fuse #9 >>>>> instr. cluster & lamp indicators.
Park and brake switch >>>> instr. cluster

I0D Fuse Pink wire B+ >>>> instr. cluster

I would be careful making any connections that might effect the instrument cluster and CCD bus. If you absolutely need to tap into the OE wiring harness try to use diodes where possible.

bambam0417

Ok this is what I found so far. The fuse was blowing when the passenger door was open. I tried to duplicate it with the driver door but was unable to duplicate the problem because the fuse is no longer popping when I open either door. Guess im going to have to wait until it does it again to figure out the problem. But the cluster, radio, and dome light work again. I'm pretty confident about my wiring for the remote start system but will take a quick peek at the wiring. I cut the insulation off the wires and soldered them together. No scotch locks or but connectors.

Anony

-I usually keep all the aux. devices on a separate circuit and fuses .. When tapping into the OE harness problems may never occure or may occur after a few months or years have past. Off-roading environments can produce some significant changes to the OE wiring systems and harnesses.

You may have your own methods for troubleshooting ... Here are some things I would try to diagnose the problem.
___

Turn on all of the devices connected to the IOD fuse ... see if the fuse pops again.

Test the remote start with the IOD devices ON and while OFF ... to determine if the remote start is the cause.

IOD circuit switches and devices.

Door switch >>> Left and right courtesy lamps, Dome lamp

Switches >>>>> Underhood mercury lamp switch, Cargo lamp switch, Radio,

Ign. Key >>>>> Instrument cluster, TCM. (aux equipment - remote start ?)

Options >>>>>> Left and Right visor vanity lamp, Compass and Overhead module.

Something is overloading the IOD fuse.

Most likely its the aux. wiring, a faulty switch or a connected device is stressing out the IOD circuit.

If the IOD fuse still doesn't pop, test again, while turning on other accessories one at a time ... headlights, running lights, heater fan, other interior devices, etc. (to replicate the blown IOD fuse, may require the engine stopped or running .. or from engine running to a stop condition)

freegdr

Sounds like door switch for interior light is issue. I would not bother with remote start. Good catch might just need switch replacement . You have electric locks ?

bambam0417

I think its in the dome lamp cuircut. With the jeep running, radio on, iod fuse blown, and all doors closed i replace the bad fuse with a good one. Everything would work as it is sapposed to. Once I opened the door the fuse would pop. The only thing that was not on was the dome lamp until I opened the door and once I did that the fuse would pop.
The remote start is aftermarket and it would work whether the fuse was good or bad.

No power locks, power window, vanity lamps, or cargo lamp . I have a very basic cherokee, not even a tape deck.