Last post on Nov 20, 2011 at 11:31 AM
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Hyundai Tucson, SUV
#21 of 32 2006 Hyundai Tucson ECS light problem
Aug 18, 2008 (11:56 am)
I recently bought a 2006 Tucson and after experiencing the "ECS" light problem I read with great interest the comments posted here.
I have a shop manual for the 2006 Tucson and it clearly shows that the brake switch is a dual switch. One set of contacts for the brake lights and one set of contacts for the "ECS" circuitry. The "ECS" contacts are closed until the brake pedal is pushed. Then, the brake light contacts close and the ECS contacts open.
The reverse happens when you let your foot off the pedal.
I suspect that the ECS contacts sometimes aren't closing when the brake pedal is let up.
The switch is easily removed and it's an easy dissassemble to inspect and clean the contacts. I found the heavy duty brake light contacts somewhat pitted.
I cleaned and adjusted the contacts and put the switch back in the car.
Let's see what happens. I'll post future results.
#22 of 32 Re: 2006 Hyundai Tucson ESC light problem [robare]
Aug 20, 2008 (11:55 am)
It's been 3 days since I cleaned and adjusted the brake switch on my 2006 Tucson (19,255 miles)
So far, the "ESC OFF" light has NOT come on.
Previously, the ESC OFF light would come on and stay on even if it was a short or long trip.
The only way to shut the light off was to stop and turn off the ignition.
DUH IT's Electronic Stability Control = ESC
#23 of 32 Re: 2006 Hyundai Tucson ESC light problem [robare]
Aug 28, 2008 (10:27 am)
OK Now it's been two weeks since I serviced the switch and the E S C light is behaving normally. Now at 20,180 miles.
Definitely.....The brake switch.
#24 of 32 Re: 2006 Hyundai Tucson ESC light problem [robare]
Oct 06, 2008 (4:18 am)
I just had my Tucson into the dealer on Friday 10/3 with the ESC light issue as well. They replaced the brake light switch and said that it is a common complaint.
#25 of 32 2005 Tucson
Jan 07, 2010 (10:48 pm)
my check engine light has been on for quite some time. I put it on the computor for diagnosis and the code came up, ( 02 circuit slow response, bank-1 sensor-1) what is bank-1 sensor-1 ?
#27 of 32 Fix to the ESC issue.
Sep 03, 2011 (5:45 pm)
Changing this part also fixes other problems... ask Autozone but first check the link.
#30 of 32 4WD system not working
Nov 16, 2011 (2:48 pm)
A three warning lights on instrument panel had come up while I was driving on highway after I get a suddenly simple drop in the road
-4WD system warning lights.
-ABS service reminder indicator.
can any one please help me what is the problem?
also the 4WD system doesn't work.
My car is Tucson 2007 4WD