TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.103
ATTE/A340 Automatic Trans (GTE)104 / 118
p.105
INSPECTION PROCEDURE — MK4 Supra A340 Automatic Trans (GTE), page 104
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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.