Oxygen sensor heater fuse?

BCKATHY7

MEMBER
2005 DODGE CARAVAN
6 CYL
2WD
AUTOMATIC
155,000 MILES

Hello, We had a new heated Oxygen sensor put in last week. The engine light is still on. I was told it would take a few days to regulate and go off. It has been over a week so I took it back. I was told the computer said it was an oxygen sensor fuse. Here's the thing, no one can find it. The diagram is under the fuse box lid, but it makes no mention of an oxygen sensor fuse. I took it to another place and he told me there isn't one, but the computer says there is? ANY help would be greatly appreciated, Thanks, Kathy

1 Reply

SQM

MECHANIC
6,383 POSTS

Hello,

There is no sure for the oxygen sensor heater circuit.
At this stage it will be helpful to know what is the code that you have received on the vehicle.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Many times, the oxygen sensor codes are for a related item but not the actual sensor. Also, if the sensor was the issue, after the replacement and clearing of the code the engine light will be off, there is no "wait period" for this.

The heater circuit code can be due to faulty wiring harness for the oxygen sensor or an issue with the engine computer.

Please let us know the exact code that you have received.
Thank you.

Images (Click to make bigger)