Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum > TJ Error Codes

Join Wrangler Forum Today

Thread: TJ Error Codes Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
03-08-2008 03:09 AM
03-08-2008 02:50 AM
Rubigoddess Huh, thanks for all the input.......whose flying out here to do me..........errrr, I mean work on the heep for me?
03-07-2008 10:17 PM
Triple88a From another thread... TPS.. throttle position sensor

Originally Posted by 4.0l sahara View Post
It's iac not ias. There is no idle air sensor. It stands for idle air controller.

First make sure the wire connector is all the way in. Pull it off, clean the inside and plug it back in.. If no luck, go to your junkyard and get a new TPS (only TPS)... very easy.. bolt on bolt off bolt on procedure with a little wiggle.
03-07-2008 09:25 PM
Smeghead By wiggling the ignition key on and off like that wouldnt you expect some kind of voltage spike error?
03-07-2008 09:06 PM
4point That would be the TPS Throttle Position Sensor. It s very inexpensive and easy to replace. Its on the side of the throttle body and is held on by 2 screws and the electrical connector.
03-07-2008 09:00 PM
mr4x4 I tried to get that stickied about a year ago it didn't happen
03-07-2008 08:43 PM
TJ Error Codes

So, I learned something new today. My check engine light has been coming on periodically. I found out that if you cycle the key (turn to accessory mode) two times quickly, then the third time leave it on, an error code will pop up. This code will tell you what the problem is. I checked out this site
and it told me what my "P0123" code meant.

It means
P0123 (M) Accelerator Position Sensor (APPS) Signal Voltage Too High APPS voltage input above the maximum acceptable voltage.

Now, what does that REALLY mean and how do I fix it?

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 10:23 PM.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC