TSRM/MK4 Supra/Repair Manual
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ATTE/A340 Automatic Trans (GTE) — Inspection Procedure, page 98

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p.099
Inspection Procedure — MK4 Supra A340 Automatic Trans (GTE), page 98
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Page text (OCR transcript)
AT2–98
A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

INSPECTION PROCEDURE

1 Check main throttle position signal.

P Turn ignition switch ON.

C Check voltage at the terminal TT of the DLC2 while
gradually depressing the accelerator pedal from
the fully closed position to the fully opened position.

OK Voltage changes from 0 V to 8 V by stages.

T Terminal Voltage (V)
8
7
6
5
4
3
2
1
(Voltage)
(Close) Throttle Valve Opening Angle (Open)

Hint Do not depress the brake pedal during the test. The
voltage will stay at 0 V if depressed.

ON
DLC2
TT
E1

A80119
AT5830

NG

OK Proceed to next circuit inspection shown on
matrix chart (See page AT2–64).

2 Check main (sub)–throttle position sensor. (see page EG–292, 293)

OK

NG Replace throttle position sensor.

3 Check harness and connector between ECM and Main (Sub)–throttle
position sensor (See page IN–30).

OK

NG Repair or replace harness or connector.

Check and replace ECM.