Toyota Camry Manual page 1081

DI–54
DTC P0121
CIRCUIT DESCRIPTION
Refer to DTC P0120 (Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction) on page DI–49.
DTC No.
After vehicle speed has been exceeded 30 km/h (19 mph)
even once, output value of throttle position sensor is out of
P0121 applicable range while vehicle speed between 30 km/h (19
mph) and 0 km/h (0 mph)
(2 trip detection logic)
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand–held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air–fuel ratio lean or rich, etc.
at the time of the malfunction.
1 Are there any other codes (besides DTC P0121) being output?
NO
Replace throttle position sensor.
DIAGNOSTICS
Throttle/Pedal Position Sensor/Switch "A"
Circuit Range/Performance Problem
Detection Item
YES
– ENGINE (5S–FE)
D Throttle position sensor
Go to relevant DTC chart.
Author :
Trouble Area
Date :
DI00S–04
289