Can anyone tell me what might be wrong with the heating system in my 2002 S-Type Jaguar. IT WILL ONLY BLOW OUT COLD AIR ON THE DRIVER'S SIDE. PASSENGER SIDE IS WORKING NORMALLY.

 

Welcome to the forums Stephen,

I've moved your question from General Tech Help to S-Type forum. Members here with the same model will be able to help.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Here you go, a troubleshooting guide for the climate control system:

https://www.jaguarforums.com/forum/s...ol-how-185002/


Specifically, do the test of the DCCV as detailed in post #2 in that guide. These valves have a very high failure rate. They are spring-loaded to the open position (full heat) but it's also possible one side is stuck in the closed position.

Also, increase the selected temperature until HI is displayed. This manual mode bypasses most (but not all) of the automatic control functions and is great for troubleshooting. This helps determine if the DCCV is getting a proper command or if the valve is sticking.