Onvehicle Inspection

1. CHECK THROTTLE BODY

(a) Check the throttle control motor operating sounds.

(1) Turn the ignition switch ON.

(2) When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises emit from the motor. If friction noise exists, replace the throttle body.

(b) Check the throttle position sensor.

(1) Connect the intelligent tester to the DLC3.

(2) Turn the ignition switch ON.

(3) Push the intelligent tester main switch ON.

(4) Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST / THROTTLE POS.

(5) Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "THROTTLE POS" is within the specification.

Standard throttle valve opening percentage:

60% or more NOTICE:

When checking the standard throttle valve opening percentage, the shift lever should be in the N position.

If the percentage is less than 60%, replace the throttle body.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment