Circuit Description

The throttle body assembly contains the following components:

• The throttle blade
• The throttle actuator motor
• The throttle position (TP) sensor 1 and TP sensor 2
• The throttle actuator control (TAC) module

The TAC system monitors the throttle position with 2 sensors. If the powertrain control module (PCM) receives a message from the TAC module that the throttle position, as indicated from TP sensor 1, disagrees with the throttle position indicated from TP sensor 2, DTC P2135 will set.