20 Most Recent 2005 Jeep Grand Cherokee - Page 3 Questions & Answers

The first thing I would check is the fuse for the horn. If it's blown, it's a cheap and easy fix. If you have the user's manual for the vehicle, it should show you the location of the fuse for the horn. Pull it, and check to see if it's blown. Aside from that, it could be that they disconneccted it below the hood. A Chilton's manual or a quick online search will help you locate the horn connection between your steering column and the horn itself. If there's a wire unplugged, just plug it back in. If both of those yeild no results, I'd find another dealership, or a trustworthy mechanic to help you diagnose.

The cam sensor tells the ECM when to fire the plug. Might want to replace the sensor.

Test the electrical circuit . Is there B+ at the switch , is it getting to the motor ? How To Diagnose your Power Window Problem Is the Switch or motor bad

The handle is only sold with the complete register assembly.

I had that same problem on a trans years ago, had to go to neutral and back to drive to get drive. I just delt with it in that manner. It doesn't do any harm to the trans at all doing that. Your best getting a specialist do a diagnostic on your trans eventually.

Check for correct power steering fluid level

focusing on the coil packs but no mention of changing or checking the injectors or wiring to those injectors

2005 WK grand, USA<> right in USA>? gas engine sure. all modern jeeps can do that. 1988 to now.. (exceptions dont apply here) all vacuum leaks do that ,ever time.. and by any MEANS> that means if the the ISC sticks open as is ALL SO COMMON that is a vacuum leak. it sucks air the MAP sees that an mixed fuel like magic, all on purpose and normal. for a all map engines made (called speed density systems) cracked vacuum hose (all of them or suspect) all THINGS , on end of all those house must not leak air. even the brake booster. must not leak,. see? it can be simple as hose or , the end of hose device bad. or ISC stuck. ever lean the ISC? idles speed controller ? gumming inside they all get. from "EGR+PCV gas clouds of *****" i all them. those two nasty forces make gunk and cause things to stick its SMOG fumes there. why do you need a stealership, ever heard of and ASE shop google ASD shops by ZIP.. tell him you have a vacuum leak, he will find it good shops have smoke machine to find them, takes skills to use. one trick (have 10) is to pinch vacuum hoses or block them RACE NOW? no , bingo. finding some leaks are long hard hard work. nature hates a vacuum so,, guess what in the end it finds a leak and exploits it. (on earth not on the moon, max vacuum there)

Get battery checked as could be falty and check heater rester or switch

there are 2 class failures (btw all are common,) charge system dead, car stalls say on way to work or battery does, as you sleep or what at work. 2 totally different failure modes, i guess it the while you sleep the battery goes from 12.6vdc to way less as you sleep... but you never said. really. its called phantom drain key off power drain to find this it take 2 tools your hands and and ammeter. (a $20 DMM meter even works here) the wiring system is complex on WKs, huge. and is a huge TREE structure, seems daunting at flirt blush but all you do is find which fuses kills the illegalll drain and work from there. test one is at the battery terminal main wire. YUP got drain here, OMG its a full 1 amp too.... yup.... look for lamps stuck on first, (IN THE DARK!) first. http://www.jeepdied.com/phantom/phantom%20drains.html

Note the diagram? What about your security system? Make sure battery has a full charge and battery connections all good. If you unplug starter relay and use jumper sire between terminal 30 and 87, the starter should crank. If you try this make sure tranny is in park or neutral and parking brake is set. I don't know exactly what testing you have done? I'm just trying to see if starter motor will crank the engine? Even so, if it does crank that doesn't mean it will start and run. The pcm grounds the starter relay, that is why I asked about security system.

Before the PCM - engine computer energizes the starter motor relay it has to see a couple of inputs . First , the park neutral safety switch an correct signal from anti-theft system . Would need to have a factory scan tool to check these inputs to the PCM , this is the best way to diagnose . Your best bet , take it to a qualified repair shop

You can try doing a re-calibration of the cluster. To do that..... Begin the test with the ignition switch in the OFF position. 2. Depress the odometer/trip odometer switch button. 3. While still holding the odometer/trip odometer switch button depressed, turn the ignition switch to the ON position, but do not start the engine. 4. Release the odometer/trip odometer switch button. 5. The instrument cluster will simultaneously begin to illuminate all of the operational segments in the VFD units, and perform a bulb check of each operational LED indicator. The VFD segments and LED indicators remain illuminated as each gauge needle is swept to several calibration points and back. If a VFD segment or an LED indicator fails to illuminate, or if a gauge needle fails to sweep through the calibration points and back during this test, the instrument cluster must be replaced. 6. The actuator test is now completed. The instrument cluster will automatically exit the self-diagnostic mode and return to normal operation at the completion of the test.

You can tell if the battery is weak while it is cranking. If that is the case then battery need to recharged. When a car is not running regularly, it doesn't have the charge from the alternator so it becomes weak. If there is no sign of weakness in cranking then the problem is not from the battery, but it is from lacking of two basic things: ignition and / or fuel. Need to find out what is the root cause. Good luck.

Does your Jeep have memory seats ? Power seats have a circuit breaker not a fuse .One circuit breaker powers driver and passanger seat's . Did you look under the seat for unconnected wire's , anything blocking the seat . circuit breaker #2 20 amp . Check for battery voltage at the switch . Black with red stripe wire .

Disconnect the battery cables from the battery an touch both cable together for ten min. How To Clear Your PCM Memory On Fords After Repairs

ive seen this happen and seen 50 causes what i the point if guessing 50 answers. on 2 major paths of failure wont crank wont start but cranks ok, is this a diesel>? OP never said what engine is there. wk jeep usa wg jeep europe. 3.0 L Mercedes Benz CRD really we are clueless to guess, what is under that hood truly... nor if it cranks nor if the IMMO lamp is off nor if fuses are good. if gas, engine , tuned up in the last decade?