Problems and Fixes After Car Audio Installs

kenchan · 08-19-2010, 11:35 AM

check your fuse md.

johnnieg · 11-02-2010, 05:36 AM

Great info.. Thanks

SonicZ · 04-28-2011, 10:14 PM

Fix for AIRBAG LIGHT worked for me on 2009

hardroc86 · 10-07-2011, 08:27 PM

Hey Guys and Gals,

Ok, finally found that almost 9 times out of 10 if you get the service engine soon light on after your HU install it is most likely caused because of the A/C control unit. You disconnect it when you install the HU and if you test your HU without connecting the controls again you install will register a fault even if you connect the controls later on, it wont matter you will still need to reset the light.

Hope this helps you guys out!

MX52Z · 06-25-2013, 10:17 PM

Quote:

Originally Posted by mdbrich

Installed my headunit and ran new speaker wires yesterday for the car. Disconnected the battery and everything. I put it all back together and the only issue I am having is my AC is stuck on the setting I left it on before I disconnected the battery. The controls for the AC do not light up nor effect the settings at all.

Quote:

Originally Posted by kenchan

check your fuse md.

I'm at this point too. I disconnected the battery, installed the new head unit and checked all the connections. Then I reconnected the battery to test the stereo which works great, but...

The AC is on low and cold and the controls for it have no effect nor do they light up along with the dash lights.

I checked the fuse in the lower, driver kick panel area and it's fine. After reading about the issue here, I pulled everything back out (PITA!) and checked the big white plug going to the AC box and it's plugged in all the way.

It seems the problem others were having was that they forgot to plug theirs in but mine is plugged in all the way. I even pushed it in harder and it wouldn't go any farther in so I'm officially stumped.

Is there something else I can check? Right now I'm leaving my battery disconnected overnight.

10-07-2011, 08:27 PM	#4 (permalink)
hardroc86 Base Member Join Date: Feb 2011 Location: Kansas City, MO Posts: 144 Drives: Nissan 370Z Blue AT Rep Power: 16	Most likely reason for Service Engine Soon Light Hey Guys and Gals, Ok, finally found that almost 9 times out of 10 if you get the service engine soon light on after your HU install it is most likely caused because of the A/C control unit. You disconnect it when you install the HU and if you test your HU without connecting the controls again you install will register a fault even if you connect the controls later on, it wont matter you will still need to reset the light. Hope this helps you guys out!

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08-19-2010, 11:35 AM	#1 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141522	check your fuse md.

11-02-2010, 05:36 AM	#2 (permalink)
johnnieg Base Member Join Date: Oct 2010 Location: ny Posts: 35 Drives: tytug Rep Power: 16	Great info.. Thanks

04-28-2011, 10:14 PM	#3 (permalink)
SonicZ Base Member Join Date: Apr 2011 Location: Chicago Posts: 29 Drives: 2009 Black 370Z Rep Power: 16	Fix for AIRBAG LIGHT worked for me on 2009