TSRM/MK4 Supra/Repair Manual
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p.103

ATTE/A340 Automatic Trans (GTE) — Inspection Procedure, page 104

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p.105
Inspection Procedure — MK4 Supra A340 Automatic Trans (GTE), page 104
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Page text (OCR transcript)
AT2–104
A340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

INSPECTION PROCEDURE

1 Check operation of stop light.

C Check if the stop lights go on and off normally when the brake pedal is depressed and released.

OK
NG Check and repair stop light circuit.

2 Check stop light signal.

ON
DLC2
TT
E1
IG ON
8 V
Accelerator Pedal
Brake Pedal
0 V
8E3B40
AT5630
AT1085

C 1. Connect the voltmeter to the terminals TT and E1 of the DLC2.
2. Turn ignition switch ON.
3. Fully depress the accelerator pedal until the voltmeter indicates 8 V and hold it.
4. Depress and release the brake pedal and check the voltage.

OK
Brake pedal Voltage
Depressed 0 V
Released 8 V

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

3 Check harness and connector between ECM and stop light switch (See page IN–30).

OK
NG Repair or replace harness or connector.

Check and replace ECM.