fabiancrystal5

S40 Fog Sensor Issues

I've got a 2002 Volvo S40 with a gasoline engine and I'm running into a strange issue. My fog sensor seems to be acting up. I'm getting an error stored, the air conditioning won't switch on, the spray nozzles are freezing, and the mirror heating isn't working. Could a defective cable or plug connection really be the culprit? Has anyone else experienced this?

A 2002 Volvo S40 is experiencing issues with the fog sensor, leading to problems with the air conditioning, spray nozzles, and mirror heating. The error code specifically points to a fog sensor malfunction. Potential causes include a defective cable or plug connection, or possibly a need for sensor recalibration. It is suggested to take the car to a workshop for professional diagnosis and repair, as similar issues have been resolved with electrical fixes.

Did this summary help you solve your problem?

4 comment(s)

Sounds familiar! I have an S40 myself. I had a similar set of problems a while back. Have you checked the sensor calibration, or maybe the humidity sensor itself? Is the error code specific to the fog sensor, or is it more generic?

Thanks for the quick reply! I haven't checked the sensor calibration, to be honest, I'm not even sure how to do that. As for the error code, it does specifically mention the fog sensor malfunction. Could a simple recalibration really fix all those symptoms? Seems like a lot!

Hmm, a specific fog sensor error and all those other issues... yes, I experienced precisely the same with my S40. Considering everything you've described, and the fact that the error is fog sensor specific, I'd advise taking it to a workshop. I ended up paying about 95€ for them to sort out the electrical issue. Saved me a lot of time and potential further problems.

Okay, thanks for confirming. I suspected it might be more than I could handle myself. I'll book it in with a local garage and hopefully, it will be a simple fix like yours. Cheers!

rmh_community_comment_box_header

community_crosslink_scanner_headline

community_crosslink_scanner_intro

community_crosslink_scanner_title

community_crosslink_scanner_price

community_crosslink_rmh_headline

community_crosslink_rmh_intro

community_crosslink_rmh_title

community_crosslink_rmh_subtitle

community_crosslink_rmh_brand

VOLVO

community_crosslink_rmh_model

S40