Electronic Throttle Control - Warning Light - need help
JK Enthusiast
Joined: Jan 2007
Posts: 241
Likes: 0
From: Tampa, FL
i seem to remember you posting something similar a little while back... that truly sucks. how many miles did you put on your JK between the last service call and the reappearance of the lightning bolt? i'm at about 2000 miles since they replaced the wiring harness on the throttle body, and so far so good.
i went through a similar sequence to you - they replaced the control module first (because even though my dealer traced the trouble to the throttle body, DC insisted that it had to be the control module), then the throttle body, and then the throttle body wiring harness. my understanding (based on conversations with the head mechanic at my dealer) is that there was a whole batch of screwed-up harnesses. could it be possible that your dealer simply replaced one bad one with another?
before the new wiring harness, i wasn't able to go two consecutive days without the stupid light coming on. since then it hasn't lit up once.
it might just be a spot of good luck, but i'll take that.
i went through a similar sequence to you - they replaced the control module first (because even though my dealer traced the trouble to the throttle body, DC insisted that it had to be the control module), then the throttle body, and then the throttle body wiring harness. my understanding (based on conversations with the head mechanic at my dealer) is that there was a whole batch of screwed-up harnesses. could it be possible that your dealer simply replaced one bad one with another?
before the new wiring harness, i wasn't able to go two consecutive days without the stupid light coming on. since then it hasn't lit up once.
it might just be a spot of good luck, but i'll take that.
JK Enthusiast
Joined: Mar 2007
Posts: 423
Likes: 1
From: Charlotte-ish, NC
Mine is in the shop right now having a wiring harness replaced for that very reason. Take it in!
Supposedly , there is a new TSB.
JK Enthusiast
Joined: Mar 2007
Posts: 423
Likes: 1
From: Charlotte-ish, NC
Just got my Jeep back from the shop. What they did was replace the Intake Harness (part# 4801605-AF desc- Wiring 8015002 E). According to the receipt, mine was shorted out.
There was no TSB on it. (yet)
There was no TSB on it. (yet)
JK Enthusiast
Joined: Mar 2008
Posts: 279
Likes: 1
From: Minnesota
So I have a two week old 4 door fully loaded and the ETC warning light came on for the first time over the weekend. Thing is, for me, it really affects the driving from steering to acceleration to breaking. Kinda freaked me out.
So now it seems to come on every time I am in slow traffic, coming to a stop light, idling in traffic, etc. It once came on while I was in my driveway connecting the iPod. Not sure if that triggered anything or was coincidental but it's information either way. For a two week old JK, I am taking back to dealer tomorrow and will let ya'll know what they do.
My 2007 commander had the light come on the day after I bought it and has been back to the dealer literally 14 times. Knock on wood, lucky #14 worked and there have been no other issues with the commander.
So now it seems to come on every time I am in slow traffic, coming to a stop light, idling in traffic, etc. It once came on while I was in my driveway connecting the iPod. Not sure if that triggered anything or was coincidental but it's information either way. For a two week old JK, I am taking back to dealer tomorrow and will let ya'll know what they do.
My 2007 commander had the light come on the day after I bought it and has been back to the dealer literally 14 times. Knock on wood, lucky #14 worked and there have been no other issues with the commander.
JK Enthusiast
Joined: Mar 2007
Posts: 281
Likes: 0
From: Atlanta, GA
My ETC light last week started coming on a couple minutes into my morning ride to work. Its not on when I back out of the garage, but is on by the time I get to my first stop sign. Jeep's more than a year old, ~13K miles. If I stop, turn engine off and on, the light goes off and stays off. Doesn't come on in the afternoons?
Today, on stop and restart, it ran a little rough for the first time. But the light stayed off.
The manual says to stop and restart, and if the light goes off, all is OK. This is what happens for me, but I don't want to do that every day. Will monitor the Jeep and this thread.
Today, on stop and restart, it ran a little rough for the first time. But the light stayed off.
The manual says to stop and restart, and if the light goes off, all is OK. This is what happens for me, but I don't want to do that every day. Will monitor the Jeep and this thread.
JK Freak
Joined: Sep 2008
Posts: 503
Likes: 0
From: Reading, PA
This happened to me for the first time on my way home tonight. I was on the highway when the lightning bolt light came on. It stayed on, but nothing seemed different. I pulled over and turned the Jeep off as the manual stated. I turned it back on and the light was gone. I have an appointment for another weird noise it has been making when shifting, so I will have to let them know about this as well.
JK Enthusiast
Joined: Mar 2008
Posts: 279
Likes: 1
From: Minnesota
Update
So I have a two week old 4 door fully loaded and the ETC warning light came on for the first time over the weekend. Thing is, for me, it really affects the driving from steering to acceleration to breaking. Kinda freaked me out.
So now it seems to come on every time I am in slow traffic, coming to a stop light, idling in traffic, etc. It once came on while I was in my driveway connecting the iPod. Not sure if that triggered anything or was coincidental but it's information either way. For a two week old JK, I am taking back to dealer tomorrow and will let ya'll know what they do.
So now it seems to come on every time I am in slow traffic, coming to a stop light, idling in traffic, etc. It once came on while I was in my driveway connecting the iPod. Not sure if that triggered anything or was coincidental but it's information either way. For a two week old JK, I am taking back to dealer tomorrow and will let ya'll know what they do.
Fault codes thrown were P2173 and P0507. The culprit was a faulty PCV which was causing too much air to flow. Hope that helps.
JK Junkie
Joined: Mar 2007
Posts: 2,710
Likes: 0
From: Kennesaw, GA
mine just did it on a trailride yesterday... once on the way up there... I stopped turned it off and back on... three time while on the trail... same thing... once when i got back home.
so far none today.
so the dealers did not give anyone that bullshit about "unable to replicate"?
so far none today.
so the dealers did not give anyone that bullshit about "unable to replicate"?
JK Enthusiast
Joined: Mar 2008
Posts: 279
Likes: 1
From: Minnesota
mine just did it on a trailride yesterday... once on the way up there... I stopped turned it off and back on... three time while on the trail... same thing... once when i got back home.
so far none today.
so the dealers did not give anyone that bullshit about "unable to replicate"?
so far none today.
so the dealers did not give anyone that bullshit about "unable to replicate"?
Can anyone confirm or deny how the codes are stored if at all???
JK Freak
Joined: Jan 2008
Posts: 742
Likes: 0
From: Central NY
I got one the other day after listening to Sirius off the battery while hanging Christmas lights. When I started it up, it was a long crank time, then this light and the Check Engine came on. I turned it off and turned it back on, no red light but the check engine was on for 2 days. I ran the diagnostic to check for codes, but didn't get any.
I'm going to the dealer next week for scheduled maintenance. Will they see that this light came on before, even though it didn't throw codes? My '07 is at 31K... getting close to that 3yr/36K mark so I need to get as much replaced as I can under warranty.
I'm going to the dealer next week for scheduled maintenance. Will they see that this light came on before, even though it didn't throw codes? My '07 is at 31K... getting close to that 3yr/36K mark so I need to get as much replaced as I can under warranty.