"Service 4WD Switch Error Message"

[mozallas]

Does any know the Solution to the "Service 4WD Switch" error message. My 1994 Grand Cherokee Laredo(4WD ALL-Time) keeps displaying this message every 2 minutes and it's so distracting. My mechanic doesn't seem to have aclue. Has anyone else had this experience?

[Tony Wray]

I am having the same problem. The mechanic at the Jeep dealership told me he had never heard of such a thing. If you or anyone else comes up with an answer I would love to have it.

[mozallas]

I got my fixed.It is a dealer part ($40) and it's located on top the transfercase between the front and rear doors.(Driver's side)

[Rocker]

The 4wd switch is the indicator that tells the VIC (vehicle information center) if you are in 4 low or 4 high. Have it replaced.

[scarng]

Originally Posted by Rocker

The 4wd switch is the indicator that tells the VIC (vehicle information center) if you are in 4 low or 4 high. Have it replaced.

I replaced the switch at a cost of 80.00. The Jeep Dealer said if it doesn't fix it that I would the VIC. It's driving me crazy.

[Rocker]

Unless the VIC is not working in other ways I would discount that as the problem. The dealer is grasping at straws.

Much more likely the wiring from the switch to the VIC is damaged.

[jeepmark]

You could have a vacuum leak which would enable the transfer case to not recognize that the switch has been activated...easily fixed with duct tape you have the np242 tcase right?

[mwgrcherokee]

I have the same problem... I had the dealer replace the switch, and the problem got better -- as in, the message on the VIC is now not happening as often -- but didn't go away... Used to be that it was beeping at me several times per hour, intermittently. NOW, it happens once or twice an hour, intermittently.

Maybe the wiring is also at fault? I have no idea where to start looking!

[mwgrcherokee]

HEY - Anyone know how to just turn off the BEEPing noise on the VIC? If I could just snip the right wire, and shut the darned thing up! The visual indicator on the computer display isn't so annoying, but that beeping is!

[mad max]

I am having the same problem! I put a shorter switch in the hole and it stopped. But replaced it with the correct switch and it started again. What does it do? There are 4 wires on it. It's driving me nutz! can a computer shut it off? Whos brilliiant idea was this anyway? Someone please make it stop! Any solutions are welcome!

[hungrywizard]

I have already had the switch replaced and it didn't resolve the issue, and the error code has went gradually from being intermittent to quite frequent (nearly all the time).

If the purpose of this switch is only informational in regards to the VIC, and it provides no real control of the 4WD system, I imagine it's possible to just short two pins together either at the switch connector itself or VIC end of the connections. This would fool the computer into "thinking" it's in all time 4-wheel high status?

If I am correct, based upon Rocker's statement, this would not have a negative impact on the 4-wheel drive system as a whole?

Finding a way to clip the "annoying" beeper would be a reasonable way to make the issue manageable but would hinder value from a salability perspective.

Any input on this would be appreciated!

--HWiz

[b.whitt]

On mine, I think it's a wiring problem in the VIC. Every time it beeps, I tap the VIC and it stops. It's annoying, and it only happens when I run my jeep for 1~2 hrs or so. When the indicator comes on for the 4wd switch, the vic also says I don't have wheels !

[Dsilver]

Haha, if you can't figure it out, or want to try something different, ask Dale, he might know what to do.

[Caribbean ZJ]

Disconnect the chime module, small maroon looking box under the steering colmn area. this should stop the beeps

[Dsilver]

Word to your mother on that one