Toyota Camry Manual page 1266

Hide thumbs Also See for Camry:

Table of Contents

CIRCUIT DESCRIPTION

Throttle Position

Condition (a) or (b) continues:

After confirming DTC P0120, use the OBD II scan tool or TOYOTA hand–held tester to confirm the throttle

valve opening percentage and closed throttle position switch condition.

Throttle valve fully closed

Approx. 100 %

WIRING DIAGRAM

Throttle Position Sensor

Throttle/Pedal Position Sensor/Switch "A"

Circuit Malfunction

DTC Detecting Condition

Throttle valve opening position

expressed as percentage

Throttle valve fully open

ENGINE (1MZ–FE)

The throttle position sensor is mounted in the throttle body and

detects the throttle valve opening angle. When the throttle valve

is fully closed, a voltage of approximately 0.7 V is applied to ter-

minal VTA of the ECM. The voltage applied to the terminals VTA

of the ECM increases in proportion to the opening angle of the

throttle valve and becomes approximately 2.7 ∼ 5.2 V when the

throttle valve is fully opened. the ECM judges the vehicle driving

conditions from these signals input from terminals VTA and

uses them as one of the conditions for deciding the air–fuel ratio

correction, power increase correction and fuel–cut control etc.

D Open or short in throttle position sensor circuit

D Throttle position sensor

Approx. 100 %

Trouble Area

VC line open

VTA line open or short

E2 line open

Show Quick Links

Table of Contents