2007 Jeep Grand Cherokee Overland - Answered Questions & Fixed issues

What is the current status? I purchased a 2007 Jeep Grand Cherokee from CarMax in December, 2009. The first time it wouldn't start was the beginning of March. The dealership could not duplicate the issue. Happened again a month later, they said it was the wireless remote module and that was replaced. Couple months later, happened again. They said it was the key module. That was replaced. Friday night, happened again. I'm waiting for a tow truck Monday morning. Does anyone know the real underlying issue and the resolution?

What u mean that it cannot be dublicated in the shop?

Go to google and order the parts. But see if they will ship to Argentina

You will get your solution and all info on service info, repair info, parts info, wiring/electrical/fuse diagrams, error/fault codes, torque specs, PCV, owner's/service/repair/parts/maintenance manuals etc everything this website www.reliable-store.com it's a very good website for vehicle problems even as old as 1991 ford..

This video link is amazing show you how to actually replace the bulbs on the boards. I have removed and repaired the radio but have not done the bulbs. The bulbs appear easier than the radio. Hope this helps? Grand Cherokee Control Unit Light Bulb Replacement WK

go to workshop

Check it out on you tube !

Ask You tube !

I have been replacing a lot of TIPM's lately. Basically the fuse panel under the hood. I have done checks for them recently and found it traces back to the main chip. Have the codes read.

OP: Posted by Barbara Frye on May 11, 2016 Barbara. get car serviced? at an ASE shop or dealer? you cant fix this lacking tools, ill not try to guess. did you first erase those errors (push reset on tool)? and see if they return, ???? this is first. have you had work on the pump/tank area. in a collision? here is why. first check fuses. any blown.? then do the cluster self test, no tools needed. posted here 100s of time, need that?, or the free link to the test in the FSM book? posted that too 100s of times here. (ask or search) next is scan it, see all errors, not just the 2 you see now. a real scan tool shows all errors and for sure those that might be related, and any CAN-BUS errors. a real scan tool can see all JEEP extended DTC errors. also post if the instrument cluster is acting odd. in any way. does the fuel gauge work? can you tell? needle steady and correct for reality, QOD: questions of the day, does engine run? does car drive, correctly day and night with bright head lights? does any other feature of the car fail. any at all. no charge lamp failures in cluster, nor volt meter below 14v in the cluster meter of same name (volts)??? 1411 Theory of Operation The Front Control Module isn't receiving a fuel volume signal over CAN B from the Cluster Module. The FCM has to send the PCM a fuel volume signal over CAN C. The signal the FCM sends over CAN C is implausible. my guess is 1403 is the real error. (primary) the fuel sender might be glitching, here is that sensor, in the tank , part of pump, part of fuel rack. in tank.

2007? WK, (i own a 2010 with all docs)same car.REDUXit dont work at all like a 1993, back in the day of running power through switches to run things.,or with banks of relays, to fail.every year,less relays like we did long ago in industry, (pure electronics)i deleted all my fsm quotes.it's to wordy.. (but accurate to a fault)it's now networked + brains (puters),the network map is below.if you look at said map, the CAN-BUS network.is a 2 wire, network for all communicationssaving a ton of wire. (times all WK made world wide)What happens is , you turn the switchand it has this binary/resistance mux logic in the switch that goes to the SCM brain.the SCM knows what you did, and converts your actions into a data stream, "a command".to the can-bus.it arrives, (if lucky)to the FCM and the cluster brain CCN. (IP)the cluster sees that and flashes the click sonic device, and flashes the blinker icon, lamps.If you can't heare that ,this means the command was never arrived.at CCN.the FCM hears this command and it in turn drivesthe blinker bulbs on the 4 external lamps.does hazards work, that be first fact to know..and that FCM fuses, must not be bad.we scan it next. to see if there are errorson the can-bus.or FCM sees garbled dataor CCN errors.or more.... lots more, or FCM not responding, the FCM is over $800 so doing the diagnosis correctly can save a lot of cash.guessing here can exceed $2000.here are the can-buss signals, (using my scope)wanna Gue$$ or Test.?

why double post, ?????ah, but now adds the stud word, ok... same answersee other post by you.not with hubs on car, you cant.take hubs off (non trivial) but did post full fsm pages.then to a machine shop or any suspension shop in townand they press on new ones, with a 5 to 20-ton press.or. just go there and ask them , they will.in fact, the whole job.

a real jeep oem factory part?

mporteous, It sounds like you have a light switch problem. I can't think of any other reason for the running lights and tail lights not working in this situation. Are your brake lights working when the headlights are off and how about when they are on? Do your four ways hazard lights work in these situations? Try all the lights under these conditions. The reason the left turn signal blinks very fast is because one of the bulbs are burned out. Try the left signal and one light (front or back) will stay on and the other will not come on at all. Replace the bulb that does nothing. Do this before you try all the lights in different situations. I think that you will have to replace the light switch. Good luck with this.

there are 3000 parts. (7000 page FSM too) we cant guess what you are doing,? https://www.techauthority.com/en-US/Pages/Home.aspx post a job, post symptoms. we cant guess that. put us on the same page, (context) please !

hello Anon. battery charged, fuses good, F10 is RR. park trailer wring hacks? (inspections find that) and collision damage there RR. does RF work with RR fails>? both ends of car have park and blink. I avoid Tail word for that one fact. if you scan the PCM with a scan tool, are there DTC errors. not scanning makes work 10x harder.! "rear right tail light and blinkers do not work." both are dead? "and" then turn off parks and blinks start working? maybe the parks and blink wires shorted to gether. what does not work mean, dead, or stuck on? all key facts in diagnosis. all that. i have 2007 GC FSm. there are 4 elements (lamps actual there) park is seperate from blink , totally. the MIP module under hood drives turns off sperate drivers. LF, RF ,LR, RR. so RR is bad. and not related to front like old cars. park feed all park lines go to a single point, the park relay 7 output. so if something shorts to park all parks mess up. each line has a fuse. so each can die by self. There is only 1 park relay #7 so my question is, do any other park lamps mess up. you said the blinks and parks (tail) do not work. so? what about all park lamps. side and front. if only RR fails, no other symptoms, i concur, bad ground. there. a volt meter can measure bad grounds with wire to battery neg, and red meter at ground on lamp base. if not 0v, or less than (0.5v) a 1/2 volt, its bad.

USA car or export, got trailer hitch options>? front or rear mess up, which end of car messes Up???????? say what stays on means, stuck blinking, or glows solid? Do hazards mode fail too.>??? got trailer wiring hacks, or collision damage? (look) Hitch jack pin 4 shorted? got factory hitch option or Uhaul hack job. now lets do the overall view the Module integrated power, (very expensive) has 4 outputs for all blinkers on car, (independent) one for each corner of car, and more if export model ( is it?) so one hopes that MIP is not bad. $$$$ Module Integrated power (MIP for short) it is a computer too. so did you connect a scan tool and look for DTC errors related to BLINK(turns./Hazard) it gets commands from the turn switch, if the turn switch works, its ok (off it's off, & on it blinks or stick on front and or rear) so if that is all true then the left side is bad. (front or rear? ) but you never said , front or rear. so my answer is, replace all lamps on LEFT END OF car, that fails. lamps can short if hug brass metal base lamps. if new lamps fail,, then the wiring is bad, based on cost of IPM check wires very carefull on end of car that fails. and at hitch wires, or if had a hitch and some one hacked it in or hack jobbed it out. (shorts) that is it, 07 GC.

Try www.rockauto.com

post code, DTC with scan tool we cant ever guess codes. mine a 2008 has like 1000 codes.

There are several different things that could make it misfire ! not just plugs ,does it have plug wires or is it coil on plug coils. Could have a coil breaking down. Does it do it in all driving conditions ? Idle , cruising speed ,under a light load and what codes .po300 random misfire or a specific cylinder misfire code ? P0306 cylinder #6 etc.