ES - 1st to 4th Gen (1990-2006) Forum for all 1990 - 2006 ES300 and ES330 models. ES250 topics go here as well.

P0031, 2003 es300

Thread Tools
 
Search this Thread
 
Old 03-22-18, 01:41 PM
  #1  
Super
Driver School Candidate
Thread Starter
 
Super's Avatar
 
Join Date: Mar 2018
Location: On
Posts: 8
Likes: 0
Received 1 Like on 1 Post
Default P0031, 2003 es300

Please,

Code is for the heated circuit, bank 1 sensor 1.

I need a wiring diagram, my heated A/F sensor has 12v+ at the connector black wire but something is wonky with the ground which I believe is black with a red tracer. I understand it grounds through the ECU but there must be a connection somewhere between the A/F sensor connection and the ECU.

Thanks,

Dave
Old 04-12-18, 03:56 PM
  #2  
Super
Driver School Candidate
Thread Starter
 
Super's Avatar
 
Join Date: Mar 2018
Location: On
Posts: 8
Likes: 0
Received 1 Like on 1 Post
Default

I fixed it. O2 sensor heater shorted and kept blowing the fuse.
The following users liked this post:
LeX2K (04-12-18)
Old 04-12-18, 04:53 PM
  #3  
LeX2K
Lexus Champion
 
LeX2K's Avatar
 
Join Date: Sep 2010
Location: Alberta
Posts: 19,313
Received 2,685 Likes on 2,273 Posts
Default

Nice, thanks for the update.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bolsen
ES - 1st to 4th Gen (1990-2006)
9
10-09-20 08:55 PM
crawdawg
ES - 1st to 4th Gen (1990-2006)
4
09-23-19 10:34 AM
fpoljanec
ES - 1st to 4th Gen (1990-2006)
0
06-08-17 03:07 AM
Chuckinnj
ES - 1st to 4th Gen (1990-2006)
0
05-30-15 07:03 PM
da7
ES - 1st to 4th Gen (1990-2006)
10
12-10-12 07:48 PM



Quick Reply: P0031, 2003 es300



All times are GMT -7. The time now is 12:13 PM.