Last post on May 15, 2013 at 12:06 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
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Jeep Grand Cherokee, Electrical, SUV
#153 of 707 Re: 02 GRAND CHEROKEE WON'T START [kampy1]
Jul 03, 2009 (11:01 am)
i just paid to ask an expert on justask.com, a jeep service manager and ASE in automotive electrical, he said the fuel warning light and security key light and no code indicate cps crankshaft position sensor, that it shorts the PCM so it won't display a code, replacing cps should fix problem, i'm having mine towed to a repair shop next week when my AAA membrship for towing takes effect. my choices were tow 30 milles to dealer for parts and labor close to $300, or the local napa repair center for about $130. I have seen many postings here where people replaced this and it did not fix, its also a very hard part to get at, so i'll let the shop fix. The mechanic there agreed with my expert that the fuel warning light and no code being stored make the cps the first place to look, especially on a 1999. He is gonna verify before changing part, keeping my fingers crossed, will post back with results. These internet forums are helpful, but electrical issues with cherokee seems to be a stumper on this forum. Last year my radiator fan got stuck on and drained batterey, then would not come back on after jump, code pointed to fan relay, forums said same, it was fan relay, this case is not as clear cut. I don't understnd why Jeep puts fan relay in suc a hard to reach area, nor do i understand the point of this cps, since what it does is stop spark and fuel if senses crankshaft timing off, and since there is no common adjustment to change timing, what is the point of cps? though i think perhaps it sends a pulse train to pcm to tell it when to send fuel to each injecter and when to fire each plug, takes place of rotor cap, the old ways were easier to fix for sure.
#154 of 707 Re: 2005 jeep grand cherokee electrical problems [andyman74]
Jul 03, 2009 (10:38 pm)
on both sides of the vehicles kick panels there are two large screw in connectors that tie the dashboard to the body harness, i suggest you pull the kick panels out and with the vehicle on wiggle the wire bundles see if you can cause the problems to duplicate. sometimes those connectors don't seat properly or wires get strained. good luck
#155 of 707 Re: 1998 Jeep Grand Cherokee TSI Evil Electrical Demon [king_wrecks]
Jul 03, 2009 (11:27 pm)
those switches in the steering column are easy to fix just pull them out and there are 2 wires at each, you can pull the switches apart with out breaking them and there is 3 stamped metal surfaces checked for cracks in the metal pads. good luck
#156 of 707 Re: 1998 Jeep Grand Cherokee TSI Evil Electrical Demon [eviljeeptsi]
Jul 03, 2009 (11:34 pm)
i am sorry to hear that i used to work at the factory those guys are supposed to replace the body harness not repair it for any kind of wiring problem. i do know that the drivers door is checked first by the body computer so it is very important. another problem area is the kick panels on both sides good luck
#157 of 707 Re: Brand new 2008 Grand Cherokee Laredo- already with electrical problem!!! [erider]
Jul 03, 2009 (11:43 pm)
lemon law states that they have 3 attempts to fix the same problem, so in the documentation make sure the problem is stated as it was the first time. if i remember correctly there are 2 wires running to the lock for the lift gate 1 of the wires is ground and most dfinately the other is the lock command, you should be able to check for a short to ground and then look for the voltage on the other good luck
#158 of 707 Re: 1999 Jeep Grand Cherokee Electrical Problem Multiple [michael0156]
Jul 04, 2009 (12:01 am)
your problem screams shorting to ground.
#159 of 707 intermitent flashing lights
Jul 05, 2009 (12:29 pm)
last night in the middle of the night, the headlights started to flash on and off as though the alarm was going off. the horn was not sounding though. it was not a consistent flashing. i started the car, after turning it off, it no longer flashed. what might be happening? also two days ago when i turned off the car, the interior air conditioning blower stayed on. it turned itself off after about 10 min. and has not done it since. it was very, very hot that day (110) and i had been running a lot of errands... again, any clues?
#160 of 707 Re: intermitent flashing lights [ceekdee]
Jul 05, 2009 (2:52 pm)
It sounds like the accessory switch for your ignition key is faulty.
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#161 of 707 Re: intermitent flashing lights [tidester]
Jul 06, 2009 (10:38 am)
i have a 98 Grand Cherokee with 224,836 miles 2 weeks ago the AC blower would intermediately stop blowing now it blows but the ac stopped blowing cold. i know thats not what you had wrong but this is what is happening now. driving home my instrument panel went dead. all guages, radio, blower, power windows and locks quit working etc. vehicle stayed under power. then the gauges came back to life and went out again. drove 30 miles and it came back on. What the heck is going on. I have had little to no problems. the other wierd thing is that my rear passenger window hasnt worked in 2 yrs after this episode the window now works.
#162 of 707 Re: 2005 grand cherokee cuts off during turns [gulfgirl]
Jul 06, 2009 (10:25 pm)
My jeep started doing the same thing but not only when i would turn but when i stopped at a light. It seemed if i kept it reved up to 1000 on the rpm it didn't die. Now I am having trouble with it starting. I can't trust it I have replaced about everything on the thing except for the PCM which seems to be where it is leading