GDM > VIC help... - JeepForum.com
 
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post #1 of 10 Old 06-15-2017, 08:47 PM Thread Starter
JuiceBoxFox
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1994 ZJ 
 
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GDM > VIC help...

Yes I know it's a waste of my time. I wanna do it anyway.

I had a GDM in my 94 Laredo, bought a VIC from a graveyard for 20 bucks, plugged it in and got the standard angry messages. It says my tail lights are out (assuming I don't have the sensor), my oil needs to be changed (actually did that today right before I plugged the sucker in, assuming I don't have the sensor), and tells me I have low washer fluid (rinse and repeat, no sensor).


So with all that knowledge, where do I find the sensors I need/want and how the heck do I put them in? If it's way beyond doable (I have the time and boredom to do it) then fine, so be it, I'll just plug my GDM back in. But if it's mildly doable then I'd rather try. I like the 24hr clock and such.

Thanks in advance for any help.

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post #2 of 10 Old 06-15-2017, 09:39 PM
kg6mov
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The rear lights isn't just a sensor, it's a whole box, LOM or Lamp Outage Module.
The oil change is a timer, info to reset it here: https://www.jeepforum.com/forum/f13/r...isplay-111470/

You'd best get an FSM for a 94 and start figuring out which wiring harnesses you already have, luckily jeep put harnesses for a lot of the optional stuff in a lot of the ZJ's, but that becomes more true in the late years than the early.


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1984 F250, 460 BB, T19, work truck/future tow pig
1987 Mercedes 300D Turbo, the diesel daily, 30mpg in style

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Originally Posted by Texas ZJ1 View Post
I heard someone yell "mall crawler" from the back porch. I'll go see who said that. Be right back.
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post #3 of 10 Old 06-15-2017, 10:07 PM Thread Starter
JuiceBoxFox
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Quote:
Originally Posted by kg6mov View Post
The rear lights isn't just a sensor, it's a whole box, LOM or Lamp Outage Module.
The oil change is a timer, info to reset it here: https://www.jeepforum.com/forum/f13/r...isplay-111470/

You'd best get an FSM for a 94 and start figuring out which wiring harnesses you already have, luckily jeep put harnesses for a lot of the optional stuff in a lot of the ZJ's, but that becomes more true in the late years than the early.
So what do I do if I already tried reseting it? And I disconnected my negative battery terminal as well and it still is yelling at me about my oil.

I have a laredo, is it possible I just don't have the proper sensor at all since it came with a GDM originally?

Blue Chewy the '94 ZJ Laredo; the hatch wiper sounds like baby Chewy :}
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post #4 of 10 Old 06-15-2017, 10:14 PM
kg6mov
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Oil change sensor? There's no such thing, it's seriously just a mileage counter. You may have pulled a ****ed up VIC though.


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1984 F250, 460 BB, T19, work truck/future tow pig
1987 Mercedes 300D Turbo, the diesel daily, 30mpg in style

Quote:
Originally Posted by Texas ZJ1 View Post
I heard someone yell "mall crawler" from the back porch. I'll go see who said that. Be right back.
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post #5 of 10 Old 06-15-2017, 10:33 PM Thread Starter
JuiceBoxFox
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I found that if you don't use 921 bulbs it'll get the rear light failure message. I'll check the LOM tomorrow when day light reappears

Blue Chewy the '94 ZJ Laredo; the hatch wiper sounds like baby Chewy :}
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post #6 of 10 Old 06-15-2017, 10:34 PM Thread Starter
JuiceBoxFox
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Quote:
Originally Posted by kg6mov View Post
Oil change sensor? There's no such thing, it's seriously just a mileage counter. You may have pulled a ****ed up VIC though.
Well, an oil level sensor. Because it says to 'check oil level.' I'mma be real grumpy if I got a fkd VIC lol

Blue Chewy the '94 ZJ Laredo; the hatch wiper sounds like baby Chewy :}
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post #7 of 10 Old 06-16-2017, 04:55 AM
AVR2
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The oil level sensor was only fitted to the 93 Limited. That's what I had, but although the sensor wiring was broken and I never got round to fixing it, I didn't get a warning message about oil level. However, when I put the VIC into self-diagnostic mode, it *did* tell me that the oil level sensor was missing.

Here's how you go into self-diagnostic mode...

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post #8 of 10 Old 06-16-2017, 08:37 AM
monte350
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Quote:
Originally Posted by JuiceBoxFox View Post
I found that if you don't use 921 bulbs it'll get the rear light failure message. I'll check the LOM tomorrow when day light reappears
i didn't see it mentioned, but if you originally had a GDM, you won't have a lamp outage module. it is something you will have to add yourself, unless you already did.

1995 Cherokee(XJ)-Rolled it
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post #9 of 10 Old 06-18-2017, 03:15 PM
Frankszj
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Hello,
This doesn't really help your situation but when I picked up my 94 ZJ it had the Upgraded VIC I believe their were two types in the ZJ and one with just a glove box (early she models)

I found it to be much more annoying than useful It said I had a " bad coolant sensor" "Service 4wd" and about three or four different things popped up and I did replace the coolant sensor with no avail and the four-wheel-drive work perfectly. It was not only annoying on start up with the various beeps but popped messages multiple times while I was driving.

Now I'm certainly not the one to avoid problems and certainly not one that doesn't want to fix things but this almost 30 year-old Vic seems to be more problematic than helpful at this point . I found the basic Vic that has the picture of the shape of the jeep body I simply replaced it (plug and play)with that one no more beeps warnings etc. It works with very basic functions but I like the fact that there's no more alarms.

I have even seen the real basic ZJs have a basic glove box instead of the Vic. All there option are on eBay so you can get rid of the Vic altogether but I actually like the one that has the pic of the car it's very early 90sish lol

The better Vic just seemed like more problems that I was worth
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post #10 of 10 Old 06-18-2017, 05:15 PM
AVR2
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Quote:
Originally Posted by Frankszj View Post
Hello,
This doesn't really help your situation but when I picked up my 94 ZJ it had the Upgraded VIC I believe their were two types in the ZJ
There's only one VIC. The "basic" thing that only shows the transfer case mode is called the GDM (Graphic Display Module).

Quote:
I found it to be much more annoying than useful It said I had a " bad coolant sensor" "Service 4wd" and about three or four different things popped up and I did replace the coolant sensor with no avail and the four-wheel-drive work perfectly
You should have been here a long time ago, then

The "bad coolant sensor" message is the classic VIC error, and most of the time it's nothing to do with the sensor, but it's actually cracked solder joints inside the VIC itself. There are numerous threads on here about it, including one that goes into detail about how to fix it.

BTW, many people make the mistake of thinking that "coolant sensor" refers to the coolant temp sensor, but it's actually the coolant level sensor inside the expansion tank.

As for the "service 4WD" message, that's actually referring to the 4WD mode switch on the transfer case that signals the VIC about which position the TC shift lever is in. The VIC has no other interface to the TC and so has no idea about the condition of the 4WD system.

Lots of people don't like the VIC, but I love it. I'm a sucker for a retro electronic vehicle monitor display
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