electrical gremlins - Hyundai Forums : Hyundai Forum
LinkBack Thread Tools
post #1 of 10 (permalink) Unread 04-16-2019, 09:03 PM Thread Starter
Junior Member
 
islander21's Avatar
 
Join Date: Jul 2010
Location: Florida
2006 Sonata 1966 Corvette
Posts: 17
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
islander21
(Thread Starter)
electrical gremlins

Hey folks,

It's been a while since I posted, which is good news. But I guess I was overdue for a doozie. The car in question is a 2006 Sonata GLS V6 with 153K miles on it. I drove it for 12 years and it left me on the road only twice: once for the accelerator pedal recall (left us in limp mode in Key West) and for a dead alternator.

Then I gifted it to my mother 4 months ago and the fun has begun. She took it in for a suspension issue to a local-to-her shop and it came out with no reverse and no 4th or 5th gear. I could not prove that the car was messed up by them and the dealer was no help after paying $150 in a diagnostic fees only for them to tell me "the tranny, it's broken". So I installed a used tranny, a new radiator and a new serpentine belt. I saw no fluid leaks of any kind anywhere. She drove the car for two weeks without incident then tells me the battery light came on and the car died. The Interstate battery checked out fine, the alternator had died. I replaced that and she drove the car for three weeks, then the whopper came last week:

She says the ESC off light came on, then "all sorts of other lights flashed" and the car would not move or go in to drive. She had it towed to her house and I then moved it to my house to troubleshoot. The battery and alternator check out good. When I clear the codes I can drive the car for about ten seconds then the tranny locks and all the codes come back. The brakes work fine, BTW. Here are the 10 codes it spat out!!!

1- B2502 - passenger air bag warning lamp
2- B1102 - battery voltage low DTC < 8v
3- C1513 - brake switch circuit error
4- C1611 - controller area network timeout EMS
5- C1616 - CAN bus off
6- C1102 - battery voltage low BTC
7- C2402 - Faulty ABS Motor or Hydraulic Electronic Control Unit (HECU)
8- C1260 - Steering Angle Sensor Circuit-Signal
9- P0733 - gear 3 incorrect ratio (x2)
10- P0734 - gear 4 incorrect ratio (x2)

Has anyone seen this mess before? What's my next step here? Please don't tell me to go to the dealer, not happening. I can check fuses, look for loose ground straps, check for shorts, I can even swap tranny input and output sensors from a 2006 Elantra (they are identical). I just don't know what to do first. Any ideas?

Last edited by islander21; 04-16-2019 at 09:10 PM.
islander21 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Unread 04-17-2019, 12:21 AM
Senior Member
 
santa06's Avatar
 
Join Date: Nov 2010
Location: Newmarket,ON,Canada
2007 Elantra-- 2006 Santa Fe 3.5 GLS,2005 Elantra hatch,2009 F150
Posts: 1,944
Mentioned: 0 Post(s)
Quoted: 193 Post(s)
santa06 is an unknown quantity at this point
I would start with main body grounds, make sure super clean, even grind off paint for bare metal contact, then light dielectric grease.
Would have been distrurbed during tranny change probably.

Look for chewed main wire harness signs. Grab battery post connections with a glove and try to twist for movement, tighten if they can be moved.
santa06 is offline  
post #3 of 10 (permalink) Unread 04-17-2019, 04:30 AM
Senior Member
 
AUTOSPARK's Avatar
 
Join Date: Nov 2014
Location: Scotland, UK.
Drives : Nissan NV200 Flies : Rans S6ES
Posts: 10,906
Mentioned: 111 Post(s)
Quoted: 2303 Post(s)
AUTOSPARK is an unknown quantity at this point
From the codes it certainly looks like you have an issue with a main power supply or ground.
The good news is it seems to be a permanent fault given that you can't drive it for more than 10secs, so it should be fairly easy to diagnose.

I think I've read on the forums here that one of the Sonata engines was known for developing high resistance in the alternator power supply wiring. Maybe @sbr711 can tell us if that effects the V6 engine you have.
AUTOSPARK is offline  
Sponsored Links
Advertisement
 
post #4 of 10 (permalink) Unread 04-17-2019, 07:41 AM Thread Starter
Junior Member
 
islander21's Avatar
 
Join Date: Jul 2010
Location: Florida
2006 Sonata 1966 Corvette
Posts: 17
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
islander21
(Thread Starter)
Quote:
Originally Posted by santa06 View Post
I would start with main body grounds, make sure super clean, even grind off paint for bare metal contact, then light dielectric grease.
Would have been distrurbed during tranny change probably.

Look for chewed main wire harness signs. Grab battery post connections with a glove and try to twist for movement, tighten if they can be moved.
OK, I will start that this week-end. I'll put it up on the ramps and go through all the grounding points. Thanks!
islander21 is offline  
post #5 of 10 (permalink) Unread 04-17-2019, 06:55 PM
Senior Member
 
craigbrooks's Avatar
 
Join Date: Feb 2007
Location: North Central Montana
06 Sonata F24S of course. 01 Mustang GT convertible as well.
Posts: 3,710
Mentioned: 0 Post(s)
Quoted: 31 Post(s)
craigbrooks is an unknown quantity at this point
The main ground to the body under the hood has been an issue. As preventive maint. I ground the paint off mine and reattached with the grease. Try that 1st.
craigbrooks is offline  
post #6 of 10 (permalink) Unread 04-18-2019, 07:18 PM Thread Starter
Junior Member
 
islander21's Avatar
 
Join Date: Jul 2010
Location: Florida
2006 Sonata 1966 Corvette
Posts: 17
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
islander21
(Thread Starter)
Quote:
Originally Posted by craigbrooks View Post
The main ground to the body under the hood has been an issue. As preventive maint. I ground the paint off mine and reattached with the grease. Try that 1st.

Will do, thanks!
islander21 is offline  
post #7 of 10 (permalink) Unread 04-27-2019, 11:02 PM Thread Starter
Junior Member
 
islander21's Avatar
 
Join Date: Jul 2010
Location: Florida
2006 Sonata 1966 Corvette
Posts: 17
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
islander21
(Thread Starter)
This is getting weirder. I added a ground from below the battery tray to the transmission. Sanded the paint off the body, cleaned all parts and coated them in dielectric grease. The voltage at the battery and any other points I connected my meter to was 12.8v with the car off. With the engine running it was 13.4v everywhere I checked, so no issues with grounds. Disconnected the battery for 1/2 hour. After I connected it I started the car and ran it for a while. No codes no engine light but both the ESC Off and ABS lights were, could not drive it as it's on jacks - maybe that's why I'm getting those lights, will find out tomorrow.

Came back a few minutes later, started it up and I got code P0160 - an O2 sensor, no data coming from it. I checked out the offending sensor (back behind the cat converter), cleaned the contact and replugged. Cleared the code, and it has stayed away. I also cleaned both ABS contacts in the front hubs, but the light's still on. Gotta research that here on the forum tonight.

Tomorrow I'l check the ABS fuses and the brake switch, and do whatever I find out I need to do to get the ESC Off/ABS light to get cleared.
islander21 is offline  
post #8 of 10 (permalink) Unread Yesterday, 06:48 AM
Senior Member
 
AUTOSPARK's Avatar
 
Join Date: Nov 2014
Location: Scotland, UK.
Drives : Nissan NV200 Flies : Rans S6ES
Posts: 10,906
Mentioned: 111 Post(s)
Quoted: 2303 Post(s)
AUTOSPARK is an unknown quantity at this point
Quote:
Originally Posted by islander21 View Post
Tomorrow I'l check the ABS fuses and the brake switch, and do whatever I find out I need to do to get the ESC Off/ABS light to get cleared.
I wouldn't waste any time on this ABS/ESC issue until you have driven the car.

If the front wheels are off the ground with the engine running the ABS/ESC lights should switch on. But they will likely switch off again after you've driven a short distance and the module is seeing plausible signals from all 4 wheels.
AUTOSPARK is offline  
post #9 of 10 (permalink) Unread Yesterday, 06:21 PM Thread Starter
Junior Member
 
islander21's Avatar
 
Join Date: Jul 2010
Location: Florida
2006 Sonata 1966 Corvette
Posts: 17
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
islander21
(Thread Starter)
Quote:
Originally Posted by AUTOSPARK View Post
I wouldn't waste any time on this ABS/ESC issue until you have driven the car.

If the front wheels are off the ground with the engine running the ABS/ESC lights should switch on. But they will likely switch off again after you've driven a short distance and the module is seeing plausible signals from all 4 wheels.
That they did as soon as I dropped it from the jacks, as expected. So I drove the car in the neighborhood this morning and after about 30 seconds the engine light came on and the tranny hesitated for a bit and then it behaved like it was in neutral. I had the code reader handy and it spat out a P0733. I cleared it, the car went into gear for a few seconds and that was it. I had to push it home, had no reverse either. Now I actually have no codes. I'm going to check the tranny linkage to see if it shifted out of position. I have a set of input and output sensors that I can swap as well since I'm going to be in that area. Will inspect the ones I take out to see what condition they are in.

If neither of those work out the Sonata will be sold as is or parted out. Any suggestions either way?
islander21 is offline  
post #10 of 10 (permalink) Unread Today, 03:08 AM
Senior Member
 
santa06's Avatar
 
Join Date: Nov 2010
Location: Newmarket,ON,Canada
2007 Elantra-- 2006 Santa Fe 3.5 GLS,2005 Elantra hatch,2009 F150
Posts: 1,944
Mentioned: 0 Post(s)
Quoted: 193 Post(s)
santa06 is an unknown quantity at this point
May sound weird, but how is fluid level in the installed tranny. Some are really sensitive and a low level could create problems.

Warmed up in neutral, second level check is the valid reading.

Cant really look at the input/output turbine sensors and evaluate their condition.

Are you sure donor tranny was decent wrecker part ?
santa06 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome