{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"ATTE","section_name":"A340 Automatic Trans (GTE)","page":36,"pages_in_section":118,"title":"Check Terminal Tt Output Voltage","section_header":"A340E (2JZ—GTE) Automatic Transmission — Troubleshooting","ocr_text":"AT2–36\nA340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING\n\nDLC2\nDLC2\nTT E1\nQ04239 S-17-1\nZ13419\n\nTT Terminal Voltage (V)\n8\n7\n6\n5\n4\n3\n2\n1\n(Voltage)\n(Close) Throttle Valve Opening Angle (Open)\nZ7131\nZ00566\n\nCHECK TERMINAL TT OUTPUT VOLTAGE\n\nWhen a voltmeter is connected to the DLC2, the following items can be checked.\n1. Throttle position sensor signal\n2. Brake signal\n3. Shift position signal\n\n1. VOLTMETER CONNECTION\nConnect the positive (+) probe of the voltmeter to terminal TT and the negative (–) probe to terminal E1 of the DLC2.\nHINT: If a voltmeter with small internal resistance is used, the correct voltage will not be indicated, so use a voltmeter with an internal resistance of at least 10 k /V.\n\n2. TURN IGNITION SWITCH TO ON (DO NOT START THE ENGINE)\n\n3. CHECK THROTTLE POSITION SENSOR SIGNAL\nCheck if the voltage changes from approx. 0 V to approx. 8 V when the accelerator pedal is gradually depressed from the fully closed position.\n\n4. CHECK BRAKE SIGNAL (LOCK–UP CUT SIGNAL)\n(a) Open the throttle valve fully to apply approx. 8 V to terminal TT.\n(b) In this condition, check terminal TT voltage when the brake pedal is depressed and released.\nTT terminal voltage:\n0 V (When brake pedal is depressed)\n8 V (When brake pedal is released)\n\n5. START ENGINE\n\n6. CHECK SHIFT POSITION SIGNAL\n(VEHICLE SPEED ABOVE 10 km/h, 6 mph)\nCheck up–shifting together with terminal TT voltage.\n\nGear Position | Terminal TT output voltage\n1st Gear | 0 V\n2nd Gear | 2 V\n3rd Gear | 4 V\n3rd Lock–up | 5 V\nO/D | 6 V\nO/D Lock–up | 7 V\n\nHINT: Check for light shocks from up–shifting and for changes in the tachometer.\nIf terminal TT Output voltage check cannot be done, do the check of TT terminal circuit on page 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