Jeep Garage  - Jeep Forum banner

2005 WK 5.7 Electrical Problem

5K views 14 replies 6 participants last post by  laskowsa 
#1 ·
Wow its been awhile guys! A lot has happened but anyways Ill get to the point. I have been having this issue with my insrument cluster turning off randomly and and then coming back on with all of the warning lights that flash briefly. Its almost as if it resets itself like the car was just being started again. Also the blower motor shuts off and the fog lights turn off and back on (when on). Sometimes I would get a CEL. (Cant recall the codes off the top of my head at the moment) I have been into the dealership two times already with know luck. It will be going in tomorrow morning so they can change the fuse box ($500) I have done numerous searches and it seems like some people have had luck with either changing the ignition switch or the light control stalk on the steering column. Im just stumped and dont want to keep throwing parts at it. My battery tested fine. I figured id get the most help coming here. Thanks!
 
#3 ·
Just got back from the dealership and the service advisor seemed very certain that the fuse box needs to be replaced. I tried explaining my theory on the ignition switch and the multifunction stalk and he said that wouldnt be the problem. Im stumped. What should I do? The ignition switch would be $130 for parts and labor to have them do it. Im stumped...
 
#4 ·
The lights and power going on/off is almost certainly the MF stalk or ignition switch. For me, it was the MF stalk. I had noticed that my auto lights hadn't been working too, which is what led me to try the MF stalk first. Most people try the ignition switch first because it's under 50% of the price of the MF stalk.

Since you have an 05WK, do the key flick trick and see if your DTC has any codes related to your Service Electrical Brake System. Mine gave a code for my ABS Wheel Speed Sensors and that remedied that issue.

Also, be sure your battery is in FRESH shape. Our WK's are VERY picky when it comes to voltages, etc.
 
#5 ·
Just went and did the key trick to check for codes but it came back clean with nothing. Probably because they got cleared at the dealership. But when this first occured I did get those codes that you mentioned about the servicing brake and wheel sensor. Ugh I hate this and I just want this fixed!
 
#6 ·
Well when the code pops up again, be sure to do the key trick to check the codes again. The ABS wheel speed sensor causes all kinds of issues, and caused my transmission to go whacky until I replaced both the F/R on my driver's side. Now she's nice and smooth again w/o any messages. :)
 
#7 ·
The multi function switch has nothing to do with it if I am following your complaint how you meant to say it. It COULD be the ignition switch, and for the money worth the shot, BUT it very well could be the interior junction block (fuse panel). There are internal ignition run and start relays, I have diagnosed an issue with the airbag lamp and no blower motor intermittently traced to this concern. For that specific relay that was all that was on it but there are a couple... if one of these were to fail it would loose contact and everything that it powered would shut off like you turned the key off for those circuits then power back up after some road vibrations or a key cycle encouraged some electron flow. The way you worded the service advisors answer leads me to believe they are taking an educated guess, unless you can talk to the tech and hear how he diagnosed that the ignition switch is NOT the problem, its a guess and at that point I would start cheap... personally of course.
 
#9 ·
Well its dropped off at the dealership to get the ignition switch replaced. If that doesnt work then I guess ill take the advisors advice and get the fuse box changed. Thank you all for your input so far! I'll let you know how everything goes. This jeep is turning out to be a love hate relationship...
 
#10 · (Edited)
Well the new ignition switch is in and so far so good. I have not had any issues with the electrical gremlins over the weekend at least. Is it normal for it to be harder to turn the key in the ignition after installing a new switch? I'm guessing so. Hopefully it fixed the issue...
 
#11 ·
Glad it's sorted. :thumbsup:
 
#13 ·
Many on here have replaced it themselves. There's a pictoral guide that I followed on either here or JeepForum which goes through a step by step. Pretty straight forward. :thumbsup:
 
#14 · (Edited)
Wow its been awhile guys! A lot has happened but anyways Ill get to the point. I have been having this issue with my insrument cluster turning off randomly and and then coming back on with all of the warning lights that flash briefly. Its almost as if it resets itself like the car was just being started again. Also the blower motor shuts off and the fog lights turn off and back on (when on). Sometimes I would get a CEL. (Cant recall the codes off the top of my head at the moment) I have been into the dealership two times already with know luck. It will be going in tomorrow morning so they can change the fuse box ($500) I have done numerous searches and it seems like some people have had luck with either changing the ignition switch or the light control stalk on the steering column. Im just stumped and dont want to keep throwing parts at it. My battery tested fine. I figured id get the most help coming here. Thanks!
I'm getting the same issues. Started with a Crankshaft position sensor engine code P320, then flashing dash ligts on/off (I find I can replicate this problem if I crank the heat and fan to the max) Other codes that came up where:

P0300 Engine Misfire Detected

The Jeep would buck like crazy when I took it on the highway and even started flashing the engine light. I limped the car home and eventally the problems went away but just the engine light stayed on. The car ran smooth.

I had the Crankshaft senor replaced ($100) no big deal. But the dash lights are still flashing. WTF?


What was your soluion? Ignition switch?

I read review pointing to the (PCM)Power Control Module, could this be the culprit?
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top