O2 Sensor Fix / Code P0135 - JeepForum.com
 
LinkBack Thread Tools
post #1 of 2 Old 12-28-2013, 10:55 AM Thread Starter
bcowan
Registered User
2002 TJ Wrangler 
 
Join Date: Mar 2012
Posts: 5
O2 Sensor Fix / Code P0135

My CEL has been coming on lately. I did a computer reading and got a P0135 - O2 Sensor Heater Circuit / Bank 1 Sensor 1. I replaced the O2 sensor with a Bosch sensor (can't find any Mopar sensors around where I'm from). Reset the computer (disconnected the battery for 10 minutes) and the CEL was gone and my Jeep was running better than it has been since last spring.

A week later, the CEL came back on and I checked it again. Same problem but I knew something else had to be going on. I did some looking around on the good ole interweb and found a great article on how to troubleshoot the O2 sensor. Long story short, I had a blown O2 sensor fuse (15 amp fuse in the engine compartment) that was preventing the heater circuit from operating. Replaced the fuse, checked the connection with my multimeter and voila! 12 volts right where it should be.

So, before going out and spending anywhere from $50 - $120 on a new O2 sensor, check the connections on the wire harness on the engine and on the sensor itself. Could save you some big bucks in the long run. The fuse, which came in a pack of four, only cost $4.

Here's the link to the article that I used:
http://troubleshootmyvehicle.com/gm/...a-p0135-page-1

bcowan is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 01-12-2014, 03:14 PM
Dlrichards
Registered User
2002 TJ Wrangler 
 
Join Date: Jan 2014
Location: Niceville
Posts: 4
You just saved me 54 bucks. And some labour. HA! Because that is exactly the code mine is spitting. Heater for for o2 sensor though I do believe I was told it bank 2.
Dlrichards is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome