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New battery = new problems (sunroof, ac/heat)

16K views 12 replies 9 participants last post by  *Kiwi 
#1 ·
A few days ago I had a new battery installed in my 06 GV. Since the installation I have the following problems:

- light flashing steadily on the air recirculation control.
- ac and heat not working properly.
- sunroof not operating as expected.

I have read that it could be an actuator problem but have not read anything regarding the actual fix. Any ideas?

Thanks!

Ken
 
#2 ·
I can shed some light on the sunroof problem... :rolleyes:

When disconnecting or replacing the battery, the sunroof auto control must be reset.
With the sunroof glass closed, push the button to tilt it open (not to slide it open) and hold for 10-15 seconds after the tilt has completed. This should reset the auto control.

Now, when you hit the button to open or close the sunroof, it should complete the cycle without having to hold in the button.

This info is in the manual, but I had to search for it the first time it happened to me.
 
#10 ·
I can shed some light on the sunroof problem...


When disconnecting or replacing the battery, the sunroof auto control must be reset.
With the sunroof glass closed, push the button to tilt it open (not to slide it open) and hold for 10-15 seconds after the tilt has completed. This should reset the auto control.

Now, when you hit the button to open or close the sunroof, it should complete the cycle without having to hold in the button.

This info is in the manual, but I had to search for it the first time it happened to me.

Thanks Billjohn! This just saved me a trip to the dealer!

Jason
 
#3 ·
AH! Thanks for the info Bill!! I will reset the sunroof as soon as I leave work!

Additional info regarding the ac/heat issue post-battery replacement. When I turn on the AC I get some seriously HOT air. I'm talking heat that would have been great to have during last winter's blizzard here in Northern Virginia. When the AC is off, the air is slightly warm, no matter if it is from the outside or recycled from within. The temp outside today is about 60, the air coming out of the vents is prob in the mid 70s.
 
#7 ·
All,

Ahhhhh, no more issues!! I disconnected the battery and reconnected the battery approx 4 times this afternoon. After each reconnection I tested the AC/Heat and the 4th time was a charm!! Everything works as expected.

Thanks to all of you for your feedback on my issue. I appreciate your help.

Ken
 
#8 ·
Ken, glad you finally got rid of your electrical gremlins.

Disconnecting or replacing the battery seems to be a recurring problem with the GV. Other forum members have written about their electrical issues after the battery has been disconnected. Automatic transmission programming in particular. I seem to remember a mechanic friend telling me he had a small 12-14V back up power supply he could plug into the OBD2 port to maintain the memory in the ECM, BCM, audio presets and clock functions when the battery was disconnected.

Does anyone have any info on something like this? I believe some OBD2 code readers have this function, but there must be a simpler, cheaper device to keep all the memory functions intact during the 10 minutes it takes to swap a battery. TIA.
 
#9 ·
I recall seeing info on a small (low amp) battery charger that simply plugged into the cig lighter socket that provided such "back-up" power for the electronics during a battery change-out as well charge. Only catch is, the cig lighter would have to be HOT with the key off to allow functionality. Some vehicle do. Others don't provide. :)
 
#11 ·
In these days...

In these days, you can all kinda troubles with electrical gremlins, solve with the re-learn system. You only need to know how. It's often in a garage handbook/manual AND on forums like this.
I come from a Nissan X-trail forum and many people there know how to re-learn a accelerator pedal, remote key-fob, aircon, and so on. Saves a lot of money too! You just have to dare... :rolleyes:
 
#12 · (Edited)
In these days, you can all kinda troubles with electrical gremlins, solve with the re-learn system.
Thought this would be a good time to post this, don't know if this particular procedure works with GV's…:confused:
Credit goes to 'starla3366' on Automotive Forums .com - Car Chat Forum - Connecting the Auto Enthusiasts



HOW TO RE-LEARN THE IDLE

If your battery has been disconnected for any reason, you may need to perform this procedure in order for the computer to relearn how to idle. Under most circumstances, it will relearn after just driving the car for a while, but if your car continues to experience an abnormal idle, or you just don't want to wait for it to relearn on its own, you can try this procedure.


STEP ONE:

Disconnect the Negative cable for a few minutes. While The negative cable is dissconnected, pump the brake pedal a few times to clear out any voltage in the system. Re-connect the negative cable after this is complete. Turn off air conditioning controls and all other accessories.

STEP TWO:

Run the engine up to operating temperature and shut off.

STEP THREE:

Apply the parking brake. Start the vehicle and place it in drive (A/T), or neutral (manual).

STEP FOUR:

Run the engine until the cooling fan has cycled on and off, or for a maximum of 10 minutes.

STEP FIVE:

Turn the ignition key off for at least 5 seconds.

STEP SIX:

Restart the engine and again shift into drive or neutral. Allow engine to run for at least 5 minutes.

STEP SEVEN:

Shut off engine for 10 seconds and restart.

STEP EIGHT:

That should do it. With engine stabilized and in closed loop, the IAC motor values should be between nine to 12 counts. If not, the adjustments may be tailored by adjusting the minimum air rate screw. More throttle valve opening equals lower IAC counts. Less throttle opening equals higher IAC counts.


And this out of a Haynes book:

1. Start the engine and run it as close to idle speed as possible until it reaches its normal operating temperature.
2. Run it for approximately 2 minutes at 1200 RPM.
3. Drive the vehicle as far as necessary, approximately 5 miles of varied driving conditions is usually sufficient to complete the relearning process.
 
#13 ·
Wow - that's a tedious procedure!

The only essential ECU-related item on a GV is to recalibrate the throttle's idle position. With foot off the gas pedal, simply wait 5+ seconds before engaging the starter the first time you use the car after disconnecting the battery.
 
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