Instructions
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1. To check your Jeep JK Wrangler’s DTC codes, simply insert your key into the ignition, turn it to the ‘ON’ position but do not start the engine. Then, push the key into the ignition cylinder and while holding it in, turn it to the ‘OFF’ position and then back to the ‘ON’ position (3) times straight making sure to end with it in the ‘ON’ position. It is important to keep pushing in on the key to prevent it from catching at the different positions along the way. |
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2. If you do step #1 correctly, all your dash lights will illuminate and your odometer will show up as a series of (6) dashes as shown in the pic to the left. If your Jeep JK Wrangler has any logged in any DTC’s, they will be displayed soon after the dashes appear. Write down the DTC(s) and check it/them against the list below to find out what they mean. |
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3. If your Jeep JK Wrangler has not logged in any DTC’s, the dashes on your odometer will be followed by the message ‘-done-’. Turn your key to the ‘OFF’ position and you will in fact be done. |
Please let me know if you have any questions. |
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okay what is p0017,pood4, and p0018
From what I can tell, both P0017 and P0018 are the same as P0016 - Crankshaft Position - Camshaft Position Correlation, except that 17 refers to “Bank 1 Sensor B” and 18 refers to “Bank 2 Sensor A”. Unfortunately, I do not know what P00D4 is. Sorry.
Eddie
Thanks for posting this! Hopefully I won’t need it for some time, but I’m sure this will definately be useful in the future
If you take things literal, there is no “OFF” on the ignition switch. You have “LOCK”, “ACC”, “ON”, and “START”. Follow the instructions above, but cycle quickly between ACC and ON. Works for me every time.
thanks for your help eddie
OK I have tried this SEVERAL times and it does not work ! WTF ??
Even when the key is pressed into the ignition I can still feel the detent positions between off (lock) and on….the key does not stop at the detents, it’s just that I can feel that they are there. Is some thing wrong with my ignition switch? Does this work on all JK’s? I have a 2007 2 door Rubicon 6 speed that I purchased in Feb-07. got any tips??
Thanks, Paul
Hey Paul, feeling the positions is normal. Did you make sure to start from the on position (last spot just before your starter begins to crank) and did you make sure to do this rapidly? Also, did you try what AZJeeper suggested?
Eddie
Thanks SO much for this. I have had check engine lights come on no less than 10 times .._ this is quite annoying for a JEEP 6000 miles on it. CHECK ENGINE… what in the H_E Double_Toothpicks is that supposed to mean? This should be i the owners manual.
Thanks Again. Ev
Hey,
Thanks for giving us backyard mechanics the info….
I hate taking my baby into a dealership, or worse a mechanic….UNHHHHHH
Any way to clear out codes?
How do I reset the codes?
To reset your codes, you can disconnect your negative battery lead for about 5-10 min. When you hook it back up, they will be gone and your computer will start learning again from there. Or, if you have something like a Hypertech Max Energy Power Programmer or ACCU-Pro, they can clear out your codes as well.
Eddie
I HAVE A CODE U110C CODE WHICH SAYS NO FUEL LEVEL BUS MESSAGE OR LOST FUEL LEVEL MESSAGE, BUT WHAT DOES THOSE MESSAGES ACTUAL MEAN?
THANKS!
what is P0000? not seeing it anywhere? thanks
I also have the P0000 code as per my max energy. What is it?
Thanks
Joe
Have a cod P0003, can’t find it!?
Also have the P0000 per the “max energy” Do you just clear it?
I also have a P0000 code.Cleared it but keeps coming back.
I had a P0018 code, though all 5 of my tires are at 26psi (35″) and yet none of the low pressure DTC’s were shown on my Hypertech even though the TPMS dash light stays on every time I start the vehicle.
Hi, I connected the Hypertech power programmer and got U0154 LOST COMMUNICATION WITH OCCUPANT CLASSIFICATION MODULE …… wonder what should this mean????
Thanks in advance
i just bought a new wrangler unlimited rubicon in indonesia. i cannot find how to deactivated the function when i unlock the door from the remote control the headlamp is on automaticly for about 1 min. thank you for ur help
I have code …… and after 2 sec No bus -wonder what should this mean????
I got 3500 miles on my 2008 Wrangler Unlimited X and it kept telling me to change the oil. I finally got a check engine light and changed the oil after that. Went through this procedure to find out why the check engine light came on. It seemed to work great and all it says is “change oil”…no code. Is that normal?
I have several codes not on the list. All of them have the 3rd digit as ‘0′ which isn’t on the lists above. They are all ‘P00xx’. Is there a portion of the DTC list not printed here?
sometimes if you have a reoccuring trouble code, the last digits indicate how many times the problem has been experienced.
i have a hypertech max energy power programer and the dtc code that can up was P0000 can you tell me what this means thxs
What does this mean? LOST COMMUNICATION WITH CLUSTER/CCN
LOST COMMUNICATION WITH CLUSTER/CCN - u0155 -2005 jeep rubicon - 6 cyl - 6 speed
P0562 System Voltage Low does this mean that I need to change the batteries on a 2007 4 door wrangler?
this is great news.
my old 90 daytona has the same thing where i can check the codes now i can do it with my jeep too!! yay
This is good stuff got my issue fixed and did it all myself..woohoo
Has anyone in this forum ever get codes P0203 and P0303 at the same time and how did you fix the problem? Thanks in advance.
azjeeper’s suggestion worked for me.
Start in the ON position. Then cycle back to ACC and up to ON three times fast (within 2 seconds or so), ending in the ON position.
I’m having intermittent starter issues. They replaced the ECM (I think) a while back when it wouldn’t start at all, and now have ordered a WCM.
I had a hot oil warning after running in soft sand, I’m assuming it meant trans as the water was normal and that a extra cooler will keeping it from happening. again
I just bought a 2009 wrangler and as soon as I got home a “hot oil” indicator light came on? I cannot find this issue in the manual…please help!!
typically comes on when climbing a long hill and your tranny has to keep shifting. try shifting to 2nd or 1st next time.
What if I get the —done— message but the CHECK ENGINE light remains on?? Thanks…
disconnect your battery for about 15min. that should clear it.
I got the p2504 code, which is charging system output high, I checked the output to the battery and it was sitting right below 14.4 volts which is right where it should be. Just wondering if i could get a little more info on this issue if at all possible. Thank you
Hi Everyone,
I have a problem with my instrument cluster. For no apparent reason, the cluster had no power to it one morning when I started up my 07 JK. I disconnected the neg terminal on the battery and waited approximately 10 minutes. Reconnected. Dome light came on, instrument cluster had power. As soon as the dome light timed out though, instrument cluster lost power again. Checked schematics and am down to the “immoblizer” circuit. Is this something that I have to take to the dealer to get checked out on thier diagnostics?
HOTOIL - part of a recall I just had to do. Turns out they’ve discovered that the Auto Transmission isn’t really good enough for the Jeep (Surprise). So instead of giving everyone a nice new Tranny cooler… they just added a fancy light to tell you the Tranny is hot.
They include an addendum to the owners manual - when the HOTOIL indicator lights, pull over and idle in neutral until the light goes out. Then carry on… nice of them huh?? (I ain’t kiddin’)
Hi guys I need your help- My baby is pulling the code P0016 crankshaft/camshaft timing misalignment (2005 Wrangler Sport) and we have replaced both the crankshaft and camshaft sensors ($70.00 later) and it continues to pull the same code. I have done the research and have found the there was a service bulletin issued (E05 or NHTSA Item# 10013784, Oil Pump drive gear may wear out prematurely and cause engine failure due to loss of oil pressure) but I have not have a problem with losing oil pressure. Can anyone tell me if an Oil Pump Drive Gear is the same as an Oil Pump. I am thinking that it is not and that the Oil Pump Drive Gear is probably located somewhere around the camshaft but I am not sure. Can someone please tell where it is located and how hard to replace on my own without having to take it to a shop. Thanks so much in advance for all of your help and experise
The same gear that drives the oil pump also drives the Distributor/Cam sensor…
I’ve had the engine light come on about 4 times lately. Drive it for awhile and it goes of. Drive it again a couple times and it comes on again. Decided to check code this time. it is:
P0057 O2 SENSOR 2/2 HEATER CIRCUIT LOW
And this means…???
So both my battery and my alternator both went out on my 07 jeep jk…I thought? I replaced both of them and now I am getting all kinds of electrical trouble. When I am driving my cluster goes nuts…speedo and tach both start bouncing and every possible engine light comes on. I checked this with my Hypertech programmer and I got the following code, some of them are listed here but others are not. P0000, U0001, P30D1, P1330, U1403, B30D1, P0CB0, U110E. Please I need some help. Thanks
there was TSB to have the wiring harness replaced in the 07’s. did you ever have this done?
HELP pls
i did the diag. i get the words DONE but the electronic throttle control light stays on for a couple secs. could this be my kille. The 07 jeep wont start, it clicks. I tried disconx the battery..no luck.. Battery has plenty juice. i tested it . pls help
sounds like you might have a bad wiring harness. there was a recall on this a while back if i remember correctly.
Hello. I just bought a 2001 Jeep and after 200 miles engine light is flashing. Diagnosed the following things: P0202, P0302, P1281. Is this reason for concern? What do I need to do? Do I need to bring it in for servicing already? Thanks!
Hello, our 2006 Wrangler Sport will turn over but not start. The Fault code reads P0522, which is the Oil Pressure Sensor reading low. Suspecting the sensor might be bad, I replaced it, but the engine will still not start. Same fault code reads out. Am I missing something or am I really looking at a failed oil pump or failed oil pump drive? Should something be reset to allow the engine to start?
I got some DTC’s that read P0000 and U3001, should I be concerned, thanks.
After backing up with my emergency break on my engine light came on and I got a P0202 code. Could this be a misfire because of the e-brake being on? Last week I changed all spark plugs and have ridden about 300 miles since with no probs. Thanks.
While off-roading in the dunes today the computer gave me a warning message: Engine Oil Hot. Check the oil, everything seemed fine, engine was not overheating, etc… Got out of the dunes just in case, and on the highway everything fine. Not abel to find anything in the Owner Manual. What is it and what am I supposed to do? Service Center is closed for next 4 days.
it means you were over heating your transmission. when the light comes on, you need to stop your jeep but leave the engine running for a bit, this will help cool things off. to help prevent it from coming on in the first place, you should use lower gears.
Code P1128 closed loop fuel system not achieved bank one anyone know the fix?
Thanks now all I need is help to fix it.
I have a 2005 Jeep Grand Cherokee, and my airbag light is on. I pulled the codes for it and its U0151(Lost Communication with Occupant Restraint Controller ORC)What do I need to do to fix this? Where do I begain?
jeep won’t engage 4×4 in eithe high or low. Trouble code given is the C1405 TRANSFER CASE RANGE POSITION SENSOR CIRCUIT HIGH. What the crap does that mean exactly and how do I fix it?
Anyone ever had the dealership tell them something is wrong and when you run the diagnostics on the vehicle, nothing pops up? Base auto hobby shop said it was the O2 sensors, the dealership says it’s a catalyst efficiency fault, and the vehicle shows nothing.
I just picked up the error code on my JK, thanks for the tip, very useful. The only error that it gave me was P-0455 Evap purge system large leak. Any comments on what could it mean or how to fix it? Thanks!
P2181-Cooling System Performance
2009 4 door X Unlimited 49,000 miles
Coolant Overflow at minimum
Temp Gauge working differently. (Bouncing,running warmer)
Is that the cause, possibly?
What might any other immediate causes create these conditions, at this mileage?
Thank You in advance.
Is this the right place to post a question for troubleshooting??? I tried to use the method above to find some answers but no codes were given. That being said, I still have the same problem and have had so for about 2 wks now. My pass side rear turn sig doesn’t always work. I checked the bulb (was good) but replaced it anyhow, checked for loose wires and poor contact. All was good. A Mech. friend checked online and said that it looked like the computer wasn’t sending a sig to the light/plug. To me, if that were true, shouldn’t that throw a code??? Like I said, sometimes it works and sometimes it doesn’t. Any help would be great.
Guess I should have said that it’s a stock 08, 2dr, X modle. Sadly enough to say that the only off road it’s seen is my 1/2 mile dirt road for the past 3 yr that I live on.
Still cannot get codes to show up. I placed key to on position, pushed it in, while keeping it pushed it switch to Off, then ON, then Off, then ON, then Off, then ON. Dash lights up, but I do not get the dashes —– All I get is the CEL flashing for a few seconds and GASCAP error…no related codes. Am I missing something?
I’ve been having C121E–BRAKE PRESSURE SENSOR COMPARATIVE PERFORMANCE. The ESP/BAS lights have been on for a week or so. What exactly do I need to check to get this fixed?
abs light esp bas light andtraction control symbol light up and stay on.fault codes u1418 and c102b showed. what do these mean.
i have jeep wrangler 2008 and got a fault code p 0240 . what do this mean
thanks
I have a jeep wrangler sport 2003, codes p0301, p0302, p0305, po201, po203, po205. These codes done come up all at once though. A set like po201 and po301 will come up, ill clear the competer and after a few hundred miles another set of codes will come up for a differnt cylinder. Iv changed the spark plugs, the coil pack/plug rail. Iv checked all wires with ome meter. I am wonder if i should change the pcm out but im tired of throwing money away. What do you think?
I have code C1210 according to my superchips programmer. I try clearing it and it always shows its ugly face again. the code says something along the lines of “G Sensor Input Performance”. My abs, traction and esp/bas light show up on the dash. I NEED HELP!
Code C1210 “G Sensor Input Performance” shows up. ABS,Traction control, and ESP/BAS light are all on. Anyone have an idea?
I received an error code of P0300 for my 2012 Jeep Wrangler Sahara Unlimited. Can anyone let me know what this means. Thanks.
Does anyone know what P0562 means?
On my 07 if you press the key in trying to look for codes turning from acc-run three times it wont read the codes but if you do it with out pressing in the key it will read and show if there’s a code
does anyone know what P 2099 means? followed by ‘done’…
Where is the list you mention that’s at the bottom that shows the faults 00-99? I have a code PO113. What’s that all about? power train, SAE, FUEL & AIR METERING AND FAULT 13. PLEASE HELP.
Thanks,
Richard
Could you email me a DTC trouble code list?
Please,
Thanks,
Richard Dyer
Dear Sir
I have the first 4 door rubicon wrangler released I live in south Africa so service centers are few and far between
I have tried the tip with the key all that remains on is the engine warning light no codes no done . I have a uni chip fitted will this effect the process you describe ?
Also the jeep can run for for like 800 km’s and then the warning light switches on slippery surface and drive by wire and performance drops and the gas usage becomes high when you are hundreds of miles from anyone it can become a problem.
Most times if I leave it off for a while and start it up all the lights are off and it’s back to normal.
I have 67000 km’s. Any suggestions.
Thank you
Joe
I have a trouble code P 1060 and my engine light is on solid. Can anyone help. Just had new head gasket put on and my mechanic said it has something to do with the oxygen sensor. Any body want to confirm or deny that? HELP please. This car has been a nightmare.
i had a gas cap showing bad on my 2007 so i replaced it and reset code after about 50 miles light came back on again and now show a p0440 code what is that?
my 2007 jeep wrangler jk will not start until i start shiffting back and foth
More than likely, you have a leak coming from your EVAP canister.
This is a common problem with the 2007-08 JK’s. I would contact your dealership as I’m pretty sure there is a TSB for this.
I have a 2001 Jeep wrangler, new moter installed about a year ago, engine light came on, fault code is P0138, can you tell me what it is? Do you email the answers? Thank you
Rick
I have 2007 wrangler unlimited and as of recent a week ago the speedometer will drop to 0 from any speed while it flash (brake-abs-esp-esp pic) but the engine will remain full power like it nothing going on and just a day ago engine light came on went to get code pulled it said p0573 while is brake switch 1 stuck off but when i follow ur step it show done with no code read is it common for speedometer to drop like that just over brake switch?
My check engine light came on. 2008 JK Wrangler. I get the dashes and then the “done” message, but no error code. I took it into Chrysler and they got a P0303 code. Any reason why I did not get a code, but Chrysler did..?
Got a reading of ” no bus “? Anyone knw what this means?
I have 2008 JK Rubicon and tried getting the codes through the above method…but nothing. Then found I only have to to do two cycles quickly instead of the three. But unfortunately got the -done- message with no error code. Then it finally clicked in that I had removed my battery that day and cleared the codes. Then after got it going I drove it around the blocks a couple times and got the codes P0513 & P2503.OMG! Any ideas?
What needs to be done for P1486 On a 2001 Jeep wrangler?
will I lose the codes if I take battery off