Top 20 2002 Jeep Grand Cherokee Questions & Answers

Question edited for clarity. Question moved to model category. You can't 'cancel it', you have to reset it.

1. Enter your Jeep and press the Lock button on your keyless remote five times in 10 seconds. ...
2. Insert your key into the car's ignition, turn it to the "Run" position and wait for the car's chimes to stop.

More items... • Mar 22, 2022

How to reset the anti theft system - 1999-2004 Jeep ... - iFixit

and videos https://www.google.com/search?q=2002+jeep+grand+cherokee+security+reset ..

Question edited to what I think you meant to say, and get rid of the 'run-on' sentence. You need to reset the security system because you disconnected the battery which powers the immobilizer. Press the power door-lock switch on the keyless entry fob. Close the driver's side door. Leave all doors closed for about 16 seconds until the Vehicle Security Light on the instrument cluster stops flashing quickly. When the light flashes at a slower rate, this signifies that the system has been reset and rearmed.

How to Reset the Immobilizer on a Jeep Grand Cherokee and ...

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I had a problem similar to that described. I took my cherokee to my local Jeep dealer who having charged around £1000 sent me away with the a warning light still showing. Several independant units advised I should dispose of the vehicle because this intermittand issue is common. Finally I fould a Jeep dealer with a technician who actually understood the cause of the intermittant issue. He removed, cleaned and refitted all the earth (ground) conections to the chassis and the problem was cured. Time to complete 1 hour! !0K miles later all is still good. A DIY job if only I had known.

How many wiring connectors plug into it ?

Hi, I've not come across that particular symbol before, but anything showing a key is usually about the ignition systems. Since it's not starting, my guess would be that your key isn't disarming the immobiliser.? Have you got another key for that vehicle which you could try instead.? Best of luck.

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the lights began flashing intermittently on and off ???? . Wouldn't be a relay problem , a stuck relay the light's would be on all the time , wouldn't be able to shut them off . I would think a control module or secruity system . The BCM - body control module controls the lights . The Headlamp switch is a input to the BCM , the BCM does energize relays to turn on the lights . More then likely the automatic headlamp light sensor which is an input to the BCM could be the problem . Taking the vehicle to a qualified repair shop an having the BCM checked for DTC'S - diagnostic trouble codes is your best bet , Don't take it to autozone , advance etc... as they can not access these codes .

I don't understand what you mean this must be an automatic transmission what is first . If so and the transmission fluid looks OK First is drive dose the 4 wheel work So you can't drive the vehicle in forward motion . Neutral reverse and park at best can make go backwards . The good news is it dosen't sound like the tranny is shot do you have other electrical problems or it also could be a linkage problem if cable or VACUUM operated .

That sounds like a computer problem have you jumped anyone because that can hurt your computer in your vehicle hope this helps Merry Christmas

If you did the keyless entry programming thing and it doesn't work you need a new keyless entry module or maybe a fuse is blown...Check the fuses and go from there...

Check for a disconnect that enters the from of the door and check fuse panel to that area

Got any phone charges or other electronics in the vehicle? Disconnect them and try the remote. Those can cause interference.

Try cleaning the throttle body by spraying a throttle cleaner into the throttle body.

If the engine isn´t making any abnormal mechanical noises, then I would expect the oil pressure sending unit at fault. If however the engine does make more or abnormal mechanical noises, it could be a too low oil pressure and this should be addressed immediately.

idle air motor dirty/bad.pull it clean pentle check screw travel when ignition switch cut on & off. if motor is bad replace I.A.M.

If it's the 4.8 it's probably a head problem. The alluiminan the heads are made out of is like a powder that's molded together. Depending on how hot it has run it's probably ruined it. Sorry for the bad news If you need further help, reach me via phone at https://www.6ya.com/expert/grayson_15ffad3aaeb66fef

This is not an easy problem to solve at home for this vehicle. Far and away the most common cause of this issue is a faulty PCM (the vehicle's main computer). Did the vehicle just start dooing this all of a sudden with both keys? Or did it begin with one key not working and now neither works? There are several potential causes, but in my experience it usually a bad PCM, bad SKIM (anti theft module) or the SKIM needs to be reprogrammed. You are best advised to have it towed to the dealer or a reputable garage with experience in anti theft systems on Jeeps.

I think you should go for manual first after that it will be easy for u to solve your problem. I had visited this site past 2 months before for my vehicle and find it quite helpful may be you will also get something useful here 2002 Jeep Grand Cherokee Service Repair Workshop Manual INSTANT DOWNLOAD

check ALL the grounds to the PCM. The main ones are at the starter and the fuse box for the battery... there are others. If this isn't you issue then get a rebuilt PCM for $200 with exchange The rebuilders need the VIN and odometer reading to make it happen for you. (Dealer is a rip-off.)

might be good to be the engine shown as available in this vehicle - but just for a point to initiate problems resolution for - 2.4L/3.7L/4.0L/4.7L - get an idle air replacement gasket for future use - once it is has been running or has obtained some warm up temp - disconnect your idle air control valve wiring - see what effect it has on the motor -this will effect cold engine air bypass and air/fuel enrichment for the cold engine - if it is not opening and closing properly it will not start or run/idle properly - it can/will also cause you check engine light or codes - Also in this system is an ambient air temperature sensor - telling the computer the air/motor is cold and needs to enrich-en the fuel mixture as an old fashioned choke would do - I have no idea of the condition of the overall tune up on the engine so other items may also influence or prevail - such as dirty throttle body and fuel pressure regulator / filter or egr system issues - tough to do without specs. details - codes or vehicle history This is a US based gasoline jeep ? if diesel look at glow plugs or glow plug relay