Toyota Celica 2005 Repair Manual page 298

Hand−held tester:
1 Connect hand−held tester or OBD ll scan tool, and read value of throttle valve
opening percentage.
Depressed
A
2 Check throttle position sensor.
Component Side:
Throttle Position Sensor
T1
VTA
E2
Front View
OK
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
Released
(a)
(b)
(c)
CHECK:
Read its value displayed on the hand−held tester.
RESULT:
FI7052 Accelerator Pedal
Releasing and depressing
B
C
(a)
(b)
OK:
Tester Connection
VC (T1−1) − E2 (T1−2)
VTA (T1−3) − E2 (T1−2)
VC
A21413
NG
− ENGINE (1ZZ−FE)
Connect the hand−held tester to the DLC3.
Turn the ignition switch ON.
Enter the following menus: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / ETCS / THROTTLE POS.
Throttle Valve Opening
Operation Position (%)
From approx. 0 to 75
Approx. 100
Check for intermittent problems (See page
DI−3).
Go to step 4.
Disconnect the T1 throttle position sensor connector.
Measure the resistance between the terminals of the
throttle position sensor.
Throttle Valve
Replace throttle position sensor.
297
0
Specified Condition
⎯ 2.5 to 5.9 kΩ
Fully closed 0.2 to 5.7 kΩ
Fully open 2.0 to 10.2 kΩ
DI−99
Proceed to
A
B
C