I am having a P1401 code appear?

Tiny
RICHARDRAKESTRAW
  • MEMBER
  • 1997 LEXUS SC 430
  • V8
  • 2WD
  • AUTOMATIC
  • 107,899 MILES
I am having problems finding the sub tp sensor I know it has 2 a black and a gray one, I am having a p1401 code appear thanks for your time
Friday, February 22nd, 2008 AT 8:28 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The code:
P1401 - Sub Throttle Position Sensor Range/Performance Problem

The sub throttle position sensor is used for traction control. See diagnostics procedure for that DTC attached.

This vehicle is equipped with a throttle position sensor, a throttle control motor and a accelerator pedal position sensor. They are all connected to the either side of the throttle body. See diagrams below for position of each of these components.

https://www.2carpros.com/articles/how-a-throttle-body-works

I have attached the diagrams for your reference.

Please let me know of any questions.

Thank you.
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Friday, August 20th, 2021 AT 6:37 PM

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