P0501 error code

Discussion in 'General Motoring' started by max, Dec 18, 2018.

  1. max

    max

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    Hi, Today I noticed that my ABS and ESC lights are on and the cruise is not working and the check engine light is on with DSC code P0501. I understand this has to do with either the brake pedal switch problem or with the Speed sensor output from the transmission to the ECM.

    I have an 2007 Hyundai Santa fe GLS 2.7L

    any ideas?

    thanks
    max
     
    max, Dec 18, 2018
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  2. max

    avisitor

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    The vehicle actually has two speed sensors
    One is in the transmission
    The other is usually the right front abs/tone-ring sensor
    The ECU gets inputs from both sensors and compares them
    If the readings are way out of known good values then the ECU will put the engine in limp mode
    If the wheel/abs sensor is reading out of range then ABS and ESC lights will go on
    Would check .. visual inspection .. of wiring
    If nothing found then must use a higher level scanner (not a code reader) to diagnose issue.

    Good luck
     
    avisitor, Dec 19, 2018
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  3. max

    max

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    is it possible that the issue is with the input speed sensor that located right under the acceleration cable(which is below the thermostat housing) , the reason I say that is when I remove the electrical plug connected to this input sensor I don't see a any difference. meaning if it was not this sensor removing the cable will generate a different error code and it didn't. what do you think?
     
    max, Jan 11, 2019 at 5:12 PM
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  4. max

    avisitor

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    Did you drive the vehicle with the connector off? Don't.
    If you have a multi-meter then back probe to see if it is getting power and ground
    Then go on internet to check for prices

    Don't like to just replace parts without being sure the part is faulty
    However, sometimes if the part is cheap enough then replace it

    Good luck
     
    avisitor, Jan 12, 2019 at 2:59 PM
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