100% Free

No Scanner Needed

Carly logo
Prices

michaelstern1

WRV Preheating Lamp and Check Engine Light

My 2017 Honda WRV diesel with 206000 km is acting up. The preheating lamp won't switch off, the check engine light is on, and there's smoke when I accelerate. I suspect a defective preheating control unit, maybe a cable or plug issue. Anyone seen this?

Summary of the thread

A 2017 Honda WRV diesel with 206,000 km is experiencing issues with the preheating lamp not switching off, the check engine light being on, and smoke during acceleration. The suspected cause is a defective preheating control unit, possibly due to a cable or plug issue. It is suggested to check the voltage supplied to the preheating control unit, as low voltage can mimic a defective unit. Ultimately, a workshop identified and fixed a defective connection to the preheating control unit, resolving the issue.

Did this summary help you solve your problem?

4 comment(s)

luisefuchs8

I own a WRV too. Your symptoms sound familiar. Double-check the voltage supplied to the preheating control unit. Low voltage can mimic a defective unit. Measure the voltage at the connector when the preheating lamp is on.

michaelstern1 (community.author)

Thanks! Where exactly should I measure that voltage, and what reading am I looking for?

luisefuchs8

Defective cable or plug connections often cause these problems in Honda WRV car electronics. The preheating system is complex and requires specific tools. To avoid further problems, have a workshop deal with it. That should resolve the check engine light too.

michaelstern1 (community.author)

You were right. The shop found a defective connection to the preheating control unit. 95€ to fix. Thanks for the help!

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

HONDA

community_crosslink_rmh_model

WRV