Head Scratching P0AC1, P0480, and Sway Bar Awesomeness - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 9 Old 07-13-2017, 03:02 PM Thread Starter
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Exclamation Head Scratching P0AC1, P0480, and Sway Bar Awesomeness

The rig:
2012 4door rubi.

The Background :

So my Sway Bar Disconnect circuit board got all corroded and the sway bar light started flashing about a month ago. At this point I just knew the light was flashing.

I took her wheeling last weekend, and went into some water that completely submerged the disconnect.

After that the dash went a little nuts, flashing all kinds of awesome. So I knew I had an electrical issue.
After a while the prob went away. I checked codes, and only had "Network" codes, and successfully cleared them.
Checked grounds etc, and drove for a while (hours) no problem.
Then the problem returned, and the jeep wouldn't start anymore.
So I lurked the internet and figured out it was the sway bar.
So I tried disconnecting the wiring harness from the disconnect, and the Jeep was able to start and all the electrical weirdness went away.

The Problem:
After all this, I am getting the following codes:
P0480 - Cooling Fan Control Circuit 1.
P0AC1 - Hybrid Battery Pack Current Circuit Sensor "A" Circuit Low
+ several "Network" codes.

When I clear the codes they come right back.
P0AC1 is regarding a Hybrid vehicle from what I can understand....guess only the 12's got this.

I looked at the 60Amp fuse... it looks fine.
The fan comes on, but I can't tell if the fan is high or low; and am unsure how to force it.
The fan is very easy to turn by hand, and keeps turning if I give it a little spin.

I tried removing the sway bar circuit board and cleaning it and reinstalling. I think it is beyond use. The sway light is still flashing, and I can live with that.

I'm about to go on a huge trip covering thousands of miles driving in some desolate areas..... So I'm a little freaked out about this. Leave Saturday morning.

Is is possible that the fan error is just a result of the sway circuit screwing with the CAN?
Will my hybrid battery ever come on and save me gas????
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post #2 of 9 Old 07-13-2017, 05:22 PM
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if you have an aev pro cal you can disable the electronic swaybar and it kills the flashing light.
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post #3 of 9 Old 07-13-2017, 07:06 PM
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".. went a little nuts,flashing all kinds of awesome."

hehe


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post #4 of 9 Old 07-14-2017, 09:05 AM
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Quote:
Originally Posted by Jadmt View Post
if you have an aev pro cal you can disable the electronic swaybar and it kills the flashing light.
This. And procal is not pricey. Had same issue. Procal eliminated it.

Quote:
Originally Posted by thedirtman View Post
Running 37's as a daily driver is dumb
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post #5 of 9 Old 07-14-2017, 09:24 AM Thread Starter
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Quote:
Originally Posted by Jadmt View Post
if you have an aev pro cal you can disable the electronic swaybar and it kills the flashing light.
ya definitely going to do that, but am more worried about the fan at this point. I just can't figure out why it's throwing those codes
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post #6 of 9 Old 07-14-2017, 09:59 AM Thread Starter
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So according to this topic, https://www.jkowners.com/forum/stock-.../270930?page=2 , it sounds as if the 2012+ jk may not even have a high speed? I am having trouble finding the high speed fan relay..... Does it even exist on the 2012+ jk?
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post #7 of 9 Old 07-14-2017, 02:14 PM
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It seems the 2012 and newer fans are brushless and outrunner design, with the Jeeps computer controlling fan speed. My 2011 3.8 has a 2 Spearhead fan, and it is controlled by a resister.
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post #8 of 9 Old 07-14-2017, 03:04 PM
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Quote:
Originally Posted by Mjp83 View Post
It seems the 2012 and newer fans are brushless and outrunner design, with the Jeeps computer controlling fan speed. My 2011 3.8 has a 2 Spearhead fan, and it is controlled by a resister.


all due respect; just adding that the '07-'11 3.8l jk/jku have a voltage divider ( step down) resistor that is how the speeds are attained for hi,low. That funky ,ceramic connector you plug the fan into ...it has a funky name..there's a thread where either the JSS guy or RPMExtreme guy talks about it on here but I'll have to search for it. Anyway, just chippin'-in to help with the information share




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post #9 of 9 Old 07-14-2017, 08:20 PM Thread Starter
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Well.....All the codes have disappeared.
I disconnected the battery for about 10 minutes and the codes never came back after that.
I know... I know.... but I've used Torque before with that adaptor to clear codes and I've never had a problem.

I leave tomorrow on a crazy long road trip... so we'll see if the codes come back.

Appreciate all the help....glad the codes are gone.
Can't wait to see what MPG I get now that the "Hybrid Battery" is working properly again!!!!
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