2001 Toyota Sequoia Logo
Posted on Jun 11, 2009
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Check engine light fault code PO505

I am trying to find the part to replace to fix the idle control system malfunction code. I am looking for an idle control valve or throttle control valve for this vehicle but the only thing the dealer has is a trottle control motor.

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Jeffery Lewis

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  • Posted on Jun 11, 2009
Jeffery Lewis
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This code is for your electronic throttle control system it probably needs to be cleaned the butter fly sticks due to build up in side the throttle body clean with tooth brush and emission save throttle body cleaner clear codes and then dissconnect the battery for 3 hours hook back up then go for a short drive stop and go to reset idle control that should take care of this.

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  • Posted on Aug 18, 2015
xkikbxr
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I agree with the first answer to clean the throttle body, you should also clean your MAF sensor. Clear your codes and restart car to let it idle for 5-10 minutes to warm up.
I would NOT disconnect you battery cable, that will completely clear out you memory from the ECM/ECU. It takes up to 500 miles of normal city / highway driving to reset all sensors and if you have to have an emission test anytime soon, and everything hasn't reset, you'll fail the test with flying colors.
If you clean the TB and the MAF, then CLEAR the code, let car idle, then take for a drive and everything was done right then the code will not come back unless there is still something wrong in your system.

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Kolawole walex

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  • Posted on Aug 18, 2015
Kolawole walex
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Write your answer.. CODE C1201 ENGINE CONTROL SYSTEM
MALFUNCTION....brake light is on and VSC Trac, VSC is on what can cause it and how can I repair it...?

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