Problems and Fixes After Car Audio Installs

mdbrich · 08-19-2010, 10:17 AM

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.

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.

mdbrich · 08-19-2010, 08:58 PM

Silly me forgot to plug it in, thats what i get for making a project last over two days.

kenchan · 08-19-2010, 09:47 PM

haha, hey, at least it's working and no serious issues...well at least not with the car.

NISMOFO · 09-24-2010, 01:08 AM

Excellent thread. The 15-20 second trick worked on my drivers window....but the other method mentioned in the first post worked on my passenger window...LOL. couldn't get the 15-20 second method to work on the passenger side for some reason. I'm sure I was starting off wrong somehow.

NISMO370z · 10-05-2010, 09:19 PM

Thanks to this site I was able to complete the stereo install myself. I encountered the window and airbag problems but quickly corrected all the issues thanks to this thread. Thanks all!

DeEePiDDy · 10-16-2010, 09:28 AM

Service Engine Soon Light

Apparently theres some goofy code where you have to press the gas pedal 5 times in 5 seconds then relase for 10 and hold for 10 etc etc and timing is imperative, but theres a much easier way to fix this.

Just disconnect the battery for a few hours and reconnect. The ECU should be reset.

Carbon_z · 11-01-2010, 07:12 PM

the airbag light stays on for me... got teh window to work. any thing else??

Carbon_z · 11-01-2010, 07:21 PM

ahhh all fixed... you have to turn off the car right when the blank happens... dont wait for the flash.. It works now yay

_CEO_ · 02-08-2011, 06:56 PM

My AC controls and entire center dash doesnt light up any more. Fuse? if so which one. The rectangle that says the radio station and everything still lights up though.

I recently took out my stock bose head unit but put it back in.

dkguc · 03-06-2011, 10:28 PM

AIRBAG LIGHT COMING ON AFTER CAR AUDIO INSTALL

The instructions worked! Thanks.

10-07-2011, 08:27 PM	#5 (permalink)
hardroc86 Base Member Join Date: Feb 2011 Location: Kansas City, MO Posts: 144 Drives: Nissan 370Z Blue AT Rep Power: 15	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!

10-16-2010, 09:28 AM	#11 (permalink)
DeEePiDDy Track Member Join Date: Jul 2010 Location: Horsham, PA Posts: 548 Drives: 09 Nissan 370z CY MT Rep Power: 16	Service Engine Soon Light Apparently theres some goofy code where you have to press the gas pedal 5 times in 5 seconds then relase for 10 and hold for 10 etc etc and timing is imperative, but theres a much easier way to fix this. Just disconnect the battery for a few hours and reconnect. The ECU should be reset. __________________ 2009 Nissan 370Z Chicane Yellow Base Manual Transmission

11-01-2010, 07:12 PM	#12 (permalink)
Carbon_z A True Z Fanatic Join Date: Sep 2009 Location: Atlanta, GA Posts: 1,694 Drives: Carbon Fiber 370z Rep Power: 19	the airbag light stays on for me... got teh window to work. any thing else?? __________________ Full Carbon Fiber Nissan 370z "400zTT" Fully Built 4.0L Twin Turbo 1300hp, 1100whp. Follow me on Instagram at http://www.instagram.com/carbonz.

11-01-2010, 07:21 PM	#13 (permalink)
Carbon_z A True Z Fanatic Join Date: Sep 2009 Location: Atlanta, GA Posts: 1,694 Drives: Carbon Fiber 370z Rep Power: 19	ahhh all fixed... you have to turn off the car right when the blank happens... dont wait for the flash.. It works now yay __________________ Full Carbon Fiber Nissan 370z "400zTT" Fully Built 4.0L Twin Turbo 1300hp, 1100whp. Follow me on Instagram at http://www.instagram.com/carbonz.

03-06-2011, 10:28 PM	#15 (permalink)
dkguc Base Member Join Date: Jul 2010 Location: CA Posts: 35 Drives: 92 300ZX TT,00 S2000 Rep Power: 15	AIRBAG LIGHT COMING ON AFTER CAR AUDIO INSTALL The instructions worked! Thanks. __________________ My 1992 300ZX TT

08-19-2010, 10:17 AM	#1 (permalink)
mdbrich Base Member Join Date: Aug 2009 Location: ATX Posts: 171 Drives: Nizmo, DD Honda Fit Rep Power: 16	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.

08-19-2010, 11:35 AM	#2 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	check your fuse md.

11-02-2010, 05:36 AM	#3 (permalink)
johnnieg Base Member Join Date: Oct 2010 Location: ny Posts: 35 Drives: tytug Rep Power: 15	Great info.. Thanks

04-28-2011, 10:14 PM	#4 (permalink)
SonicZ Base Member Join Date: Apr 2011 Location: Chicago Posts: 29 Drives: 2009 Black 370Z Rep Power: 14	Fix for AIRBAG LIGHT worked for me on 2009

08-19-2010, 08:58 PM	#7 (permalink)
mdbrich Base Member Join Date: Aug 2009 Location: ATX Posts: 171 Drives: Nizmo, DD Honda Fit Rep Power: 16	Silly me forgot to plug it in, thats what i get for making a project last over two days.

08-19-2010, 09:47 PM	#8 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	haha, hey, at least it's working and no serious issues...well at least not with the car.

09-24-2010, 01:08 AM	#9 (permalink)
NISMOFO Enthusiast Member Join Date: Jan 2009 Location: McKinney, TX Posts: 269 Drives: 370Z Rep Power: 17	Excellent thread. The 15-20 second trick worked on my drivers window....but the other method mentioned in the first post worked on my passenger window...LOL. couldn't get the 15-20 second method to work on the passenger side for some reason. I'm sure I was starting off wrong somehow.

02-08-2011, 06:56 PM	#14 (permalink)
_CEO_ Base Member Join Date: Jan 2011 Location: Jacksonville Fl Posts: 64 Drives: 09 370z MB M6 Rep Power: 15	My AC controls and entire center dash doesnt light up any more. Fuse? if so which one. The rectangle that says the radio station and everything still lights up though. I recently took out my stock bose head unit but put it back in.

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