thickdaddy

Just got a 2004 UL beaut that needs a little work. On the rear console controls all the buttons work except for the rear AC controls. I couldn’t find anything describing this exact issue on the forums so I wanted to see if you guys might know how to help me. If there is a post with a similar issue or solution please send me that way. I’m planning to take a look this weekend hoping it’s just a circuitry issue. The fuse is not blown. I’ve attached a video here to describe the issue:
And here’s a picture of she

Niveus

Have you tried turning on the rear A/C from the front nav screen? There should be an option in the climate section.

thickdaddy

That is not the issue unfortunately

jharris400

The rear A/C only turns on if the front A/C is on. Nevermind I watched your video and saw that you do have the front A/C on.

thickdaddy

Yes that isn’t it either, if y’all have any other ideas please let me know because I’d really like to get the cooler working.

StanVanDam

From service manual:
Symptom: Whole functions of the rear A/C system does not operate
Suspected area #1: Rear Air Conditioning Amplifier Assy (small rectangular box on the lower driver side of the rear blower fan)
Suspected area #2: ACC Power Source Circuit

Aside from that, also check your Luggage Room J/B circuit, see attached file m_05_0919 (REAR BLOWER MOTOR CIRCUIT).

thickdaddy

Thanks Stan,

now how hard is this to do? I’m pretty car illiterate at the moment although I’m willing to do the work. I just don’t want to do more bad than good.