02-07-2006, 12:49 PM
Pulled a code for both o2 sensors having a "heater circuit malfunction" simultaniously. changed the post cat o2 sensor 6 months ago.the car has only 30k. I'm worried it might be the pcm not making a ground for the heater circuit, thus, needing to replace the $350 module. Has anyone delt with the same problem? i could replace the two $100 sensors but i would hate to do that and find out it is the pcm and then have to replace that as well.
02-07-2006, 01:48 PM
Try changing the O2 heater fuse yet?
02-07-2006, 02:48 PM
NO, WHAT IS THE FUSE LOCATION?
02-07-2006, 03:08 PM
LOOK IN YOUR OWNER'S MANUAL
02-07-2006, 03:12 PM
DIDNT COME WITH THE VEHICLE(USED)
02-07-2006, 03:19 PM
i'm sure if you do an online search you can find something with a fuse chart for your vehicle , mayb ford.com ?
02-07-2006, 04:16 PM
I GUESS THE SIMPLEST EXPENATION TENDS TO BE THE CORRECT ONE! THANKS ALL.
02-07-2006, 04:49 PM
STOP TYPING IN CAPS [boxface]
02-07-2006, 07:55 PM
I dont remember which fuse it is but I can tell you its in the fuse box under the HOOD and that its on the drivers side of the fuse box..
It's #F18. (shown on the underside of the fuse cover)
Should be a 10A (red) fuse right next to a green relay.
You can download a PDF of the standard Owner's Manual for free.
The fuses will be shown/listed in it.
Click below, and enter your year and model:
To order the SVT Supplement, click on the HelmInc. link shown on the same page as above.