Anti Theft (disabling) - Hyundai Forums : Hyundai Forum
Reply
 
LinkBack Thread Tools
post #1 of 14 (permalink) Old 04-18-2017, 10:16 PM Thread Starter
Junior Member
 
Join Date: Apr 2017
Location: Upstate NY
Posts: 5
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
EDJR is an unknown quantity at this point
(Thread Starter)
Anti Theft (disabling)

I'm in NY and my daughter is in Florida, she has a 2002 Hyundai Sonata that apparently has an intermittent VATS problem. The previous owner fitted it with an after market key fob. If she doesn't use the fob and unlocks the doors with the key it starts regularly...but occasionally the vats still kicks in and the car won't start.

Would like to look into have the VATS disabled and was wondering if any of you folks have experience with the Hyundai VATS? Is this a common flash, is the VATS it in the PCM or BCM in the Hyundai?

Thanks
EDJR is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 04-18-2017, 11:07 PM
Senior Member
 
Join Date: Sep 2015
Location: Albany/NY/USA
Drives 2001 Elantra GLS 2.0L Auto
Posts: 1,607
Mentioned: 9 Post(s)
Quoted: 331 Post(s)
avisitor is an unknown quantity at this point
Depends on the vehicle anti-theft system
If it is tied up with the ECU then disabling it could potentially disable starting the engine
If it is an after market item then removing it could do it

May help if you give a little more information on the car
avisitor is offline  
post #3 of 14 (permalink) Old 04-19-2017, 06:45 AM
Senior Member
 
AUTOSPARK's Avatar
 
Join Date: Nov 2014
Location: Scotland, UK.
Hyundai Getz 1.5 CRD (D4FA)
Posts: 6,187
Mentioned: 50 Post(s)
Quoted: 1070 Post(s)
AUTOSPARK is an unknown quantity at this point
When the VATS kicks in, does the engine crank over but fail to start or does the starter not even engage?
Has your daughter had the car checked at a garage to confirm the VATS is the cause of the non start?
I assume this car has an automatic gearbox?
AUTOSPARK is offline  
 
post #4 of 14 (permalink) Old 04-19-2017, 07:49 AM Thread Starter
Junior Member
 
Join Date: Apr 2017
Location: Upstate NY
Posts: 5
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
EDJR is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by AUTOSPARK View Post
When the VATS kicks in, does the engine crank over but fail to start or does the starter not even engage?
Has your daughter had the car checked at a garage to confirm the VATS is the cause of the non start?
I assume this car has an automatic gearbox?
Thanks

The car won't even turn over. On one occasion a mechanic was in the area and used the key to open all of the doors and the car started. I assume he did a VATS relearn, he may have told her it had something to do with an aftermarket key fob she had.

I'm familiar with GM Passkey and how it works via the BCM. Have no idea how the Hyundai VATS works (PCM or BCM) and if it can be by-passed (resistor) or disabled via flashing.

BTW: The car is automatic.
EDJR is offline  
post #5 of 14 (permalink) Old 04-19-2017, 01:20 PM
Senior Member
 
AUTOSPARK's Avatar
 
Join Date: Nov 2014
Location: Scotland, UK.
Hyundai Getz 1.5 CRD (D4FA)
Posts: 6,187
Mentioned: 50 Post(s)
Quoted: 1070 Post(s)
AUTOSPARK is an unknown quantity at this point
Quote:
Originally Posted by EDJR View Post
I'm familiar with GM Passkey and how it works via the BCM. Have no idea how the Hyundai VATS works (PCM or BCM) and if it can be by-passed (resistor) or disabled via flashing.
The Hyundai factory immobilizer used on US cars is a bit of a joke to be honest. It's so easy to bypass it's hardly worth having. Of course your daughter's car seems to have an aftermarket system so maybe there will be a bit more to bypassing that. Especially when we don't know what it is.

Quote:
Originally Posted by EDJR
BTW: The car is automatic.
But it might not be a VATS/immobilizer fault at all. Maybe there is a problem with the park/neutral switch since the car has an automatic gearbox. That's not that uncommon on Hyundai cars.
AUTOSPARK is offline  
post #6 of 14 (permalink) Old 04-19-2017, 04:03 PM Thread Starter
Junior Member
 
Join Date: Apr 2017
Location: Upstate NY
Posts: 5
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
EDJR is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by AUTOSPARK View Post
The Hyundai factory immobilizer used on US cars is a bit of a joke to be honest. It's so easy to bypass it's hardly worth having. Of course your daughter's car seems to have an aftermarket system so maybe there will be a bit more to bypassing that.


Where can I get some info on the immobilizer function, schematic or bypass procedure. I'll pass on the neutral safety switch concern.
EDJR is offline  
post #7 of 14 (permalink) Old 04-19-2017, 06:56 PM
Senior Member
 
Join Date: Oct 2012
Location: VA, USA
Sonata 2000, 2.5L V6
Posts: 460
Mentioned: 0 Post(s)
Quoted: 57 Post(s)
SoNic67 is an unknown quantity at this point
After market VATS - you can't get the schematic from Hyundai. You need to know what is installed there first. Most likely your daughter cannot do anything with a "schematic" anyway.

Diagrams for neutral switch or brake switch/lights is what you can get from Hyundai.

"Those with limited knowledge in a domain suffer from a dual burden: Not only do they reach mistaken conclusions and make regrettable errors, but their incompetence robs them of the ability to realize it."

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.
Translation: Stupid doesn't know is stupid.
SoNic67 is offline  
post #8 of 14 (permalink) Old 04-19-2017, 10:08 PM Thread Starter
Junior Member
 
Join Date: Apr 2017
Location: Upstate NY
Posts: 5
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
EDJR is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by SoNic67 View Post
After market VATS - you can't get the schematic from Hyundai. You need to know what is installed there first. Most likely your daughter cannot do anything with a "schematic" anyway.

Diagrams for neutral switch or brake switch/lights is what you can get from Hyundai.
I am asking for an OEM wiring diagram not an aftermarket one. I simply want to know if the car uses a BCM or a combination of BCM and PCM to control the security system so I can understand the system then take it from there.

This is one of the reasons I discouraged her from buying a Korean car in the first place..there really isn't any technical support for them online. Just went through a similar VATS (no start) situation with a 2003 Chevy Cavalier and with a supplied forum diagram was able to narrow it down to a power line break.

I can actually get wiring diagrams for most American cars on the Autozone web site in the help section.

Thanks anyway
EDJR is offline  
post #9 of 14 (permalink) Old 04-19-2017, 10:30 PM Thread Starter
Junior Member
 
Join Date: Apr 2017
Location: Upstate NY
Posts: 5
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
EDJR is an unknown quantity at this point
(Thread Starter)
FYI: Autozone has the ETACS wiring diagram available..but since I am a new member..I can't post the link!
EDJR is offline  
post #10 of 14 (permalink) Old 04-19-2017, 10:33 PM
Senior Member
 
Join Date: Sep 2015
Location: Albany/NY/USA
Drives 2001 Elantra GLS 2.0L Auto
Posts: 1,607
Mentioned: 9 Post(s)
Quoted: 331 Post(s)
avisitor is an unknown quantity at this point
Do they also have the wiring diagram for the VATS????
avisitor 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









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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