The throttle actuator is operated by the ECM and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle body. The TP sensor provides feedback to the ECM. This feedback allows the ECM to appropriately control the throttle actuator and monitor the throttle opening angle as the ECM responds to driver inputs. HINT:

This ETCS (Electronic Throttle Control System) does not use a throttle cable.


DTC Detection Conditions

Trouble Areas


Conditions (a) and (b) continue for 2.0 seconds (1 trip detection logic):

(a) Throttle actuator duty ratio 80 % or more

(b) Throttle actuator current 0.5 A or less

• Open in throttle actuator circuit

• Throttle actuator



Either of following conditions met (1 trip detection logic):

• Hybrid IC diagnosis signal failure

• Hybrid IC current limiter port failure

• Short in throttle actuator circuit

• Throttle actuator

• Throttle valve

• Throttle body assembly


Was this article helpful?

0 0
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