ESC light came on 2008 Santa Fe

sagarcia

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Jun 1, 2015, 1:18:00 PM6/1/15

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My SUV has 88,000 miles. ESC light came on and car slowed down and would not
speed up. Turned car off and ESC light went off and car ran fine. This has
happened several times. Brake light switch was replaced by dealer due to
recall campaign. ESC light issue started again after a month and I replaced
brake light switch myself with after market. A month later ESc light issue
started again and again I replaced brake light switch with dealer part. Issue
is still ongoing off and on. Do you have any idea what could be causing the
ESC light to come on and off?

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Ed Pawlowski

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Jun 1, 2015, 7:37:37 PM6/1/15

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On Mon, 01 Jun 2015 17:18:00 +0000, sagarcia
<065b0505594b06f549...@example.com> wrote:

>My SUV has 88,000 miles. ESC light came on and car slowed down and would not
>speed up. Turned car off and ESC light went off and car ran fine. This has
>happened several times. Brake light switch was replaced by dealer due to
>recall campaign. ESC light issue started again after a month and I replaced
>brake light switch myself with after market. A month later ESc light issue
>started again and again I replaced brake light switch with dealer part. Issue
>is still ongoing off and on. Do you have any idea what could be causing the
>ESC light to come on and off?
>
>--

><?)))><

Have you had the codes read? Sounds like a bas sensor and it is
putting you into "safe mode", meaning you can drive it but very slow.
I had similar thing when a throttle position sensor went.

Take it to a shop for repair, or go to Auto Zone, have the code read
and replace it yourself if you have the ability. It won't get better,
just worse.

sagarcia

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Jun 3, 2015, 12:18:00 PM6/3/15

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replying to Ed Pawlowski , sagarcia wrote:

> esp wrote:
>
> On Mon, 01 Jun 2015 17:18:00 +0000, sagarcia

> Have you had the codes read? Sounds like a bas sensor and it is
> putting you into "safe mode", meaning you can drive it but very slow.
> I had similar thing when a throttle position sensor went.
> Take it to a shop for repair, or go to Auto Zone, have the code read
> and replace it yourself if you have the ability. It won't get better,
> just worse.

Thanks Ed,

Here are the codes:

P2135 throttle/pedal position sensors/switch
P2106 Electronic throttle control ETC malfunction limited power
P1295 Electronic throttle control ETC malfunction Power mgmt
P2135 throttle/pedal position sensors/switch
P2106 Electronic throttle control ETC malfunction limited power
P1295 Electronic throttle control ETC malfunction Power mgmt

When this happened the first time I did change out the throttle sensor and
installed it in the exact position as when removed. Could it be the pedal
sensor? Can I just change out the sensor or do I have to buy the whole pedal
and sensor combined?

hyundaitech

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Jun 8, 2015, 1:38:35 PM6/8/15

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These codes are not referring to the pedal position sensor, but rather the throttle sensor on the throttle body. Technical service bulletin indicates throttle sensor should be replaced and ECM updated to latest software (if it doesn't already have the latest software). My recommendation on this one is to take to the dealer.