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In MY04 CS when I turn the heat on, it is throwing cold air on passenger side while the drivers side is working fine. I have tried changing temperature individually for both sides, but no cigar.
i read similar post here but it was more about air condutioner than the heater.
I had this problem about a year ago, but it started working again after a few hours.
Another issue is that there is no air coming out from front center ducts. This center duct problem somehow fixed itself for a short period of time in the summer when I was using A/C, but returned again.
Any suggestion what could be causing these?
I finally narrowed my vacuum leak on my coolant system to heater core pipes. When I isolated heater core pipes near the split hose under rear passenger side, I could see vacuum holds at 25psi. So I am suspecting a hole or a hose leak at the heater core. I know heater core is under the battery, but wondering how to get to the heater core. Bentley manual does not cover this topic. Any help with instructions are appreciated. Enclosing a picture from my car.
Ok, so here's the story. AC was working perfect. Out of the blue, zzzzzz no air. Nothing! Just dead :drive:.
Durametric Pro says typical code 353: "Feedback from blower regulator front, value below lower limit value"
Battery was replaced as it was giving me a hard time... It was replaced 2 days ago...
There's no voltage to the plug that goes to the blower...
No voltage to the blower blue regulator behind the glove box [plug with dual wires brown and black]...
Fuses are all perfect on the engine bay, right side, left side and even I checked the ones under the driver's seat that I didn't know there was a 40A and a 5A fuses when the battery was replaced. Curious thing is that I tested voltage delivered to fuse 57 and it was 10.38 volts....
All these tests were performed with the Cayenne running and AC fan at all different speeds.
I think I made a so far good troubleshooting but, don't know where else to look... I also checked the wiring diagrams, but feel kind of lost -_- . I also made a search here at :renntech: but not as far as I have gone in the troubleshooting...
Any more ideas? :help: :lightbulb: :thankyou: