TSRM/MK4 Supra/Repair Manual
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TGTE/Troubleshooting 2JZ-GTE — Check throttle position sensor(s)., page 69

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Check throttle position sensor(s). — MK4 Supra Troubleshooting 2JZ-GTE, page 69
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Page text (OCR transcript)
EG-555
ENGINE – 2JZ-GTE ENGINE TROUBLESHOOTING

2  Check throttle position sensor(s).

For Throttle Position Sensor

2 (VTA1)

4 (E2)  3 (IDL1)

For Sub-Throttle Position Sensor

1 (E2)

2 (IDL2)  3 (VTA2)

P11452
P12008

P  (1) Remove throttle body. (See page EG-291)
    (2) For throttle position sensor, apply vacuum to throttle opener. (See page EG-292)

C  Measure resistance of each terminal as below table when the throttle valve is opened gradually from the closed condition.

OK

Terminal               Throttle Valve         Fully Closed     Fully Opened

Throttle
Position
Sensor
2 (VTA1) - 4 (E2)     0.3 ~ 6.3 kΩ          2.4 ~ 11.2 kΩ
3 (IDL1) - 4 (E2)     Less than 0.5 kΩ       1 MΩ or higher

Sub throttle
Position
Sensor
3 (VTA2) - 1 (E2)     0.3 ~ 6.3 kΩ          2.0 ~ 10.8 kΩ
2 (IDL2) - 1 (E2)     Less than 0.5 kΩ       1 MΩ or higher

Hint  Resistance between terminals 2,3 (VTA1,2) and 4,1 (E2) should increase gradually in accordance with the throttle valve opening angle.

OK

NG  Adjust or replace throttle position sensor(s). (See page EG-292)

3  Check for open and short in harness and connector between engine control module and throttle position sensors(s) (See page IN-30).

OK

NG  Repair or replace harness or connector.

↓ Check and replace engine control module.