TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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ATR/ATM Unit Repair, page 9

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ATM Unit Repair — MK4 Supra ATM Unit Repair, page 9
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Page text (OCR transcript)
IN-9

INTRODUCTION - GLOSSARY OF SAE AND TOYOTA TERMS

TVV	Thermal Vacuum Valve	Bimetallic Vacuum Switching Valve (BVSV)
		Thermostatic Vacuum Switching Valve (TVSV)
TWC	Three-Way Catalytic Converter	Three-Way Catalyst (TWC)
		CCRO
TWC+OC	Three-Way + Oxidation Catalytic Converter	CCR + CCo
VAF	Volume Air Flow	Air Flow Meter
VR	Voltage Regulator	Voltage Regulator
VSS	Vehicle Speed Sensor	Vehicle Speed Sensor (Read Switch Type)
WOT	Wide Open Throttle	Full Throttle
WU-OC	Warm Up Oxidation Catalytic Converter	-
WU-TWC	Warm Up Three-Way Catalytic Converter	Manifold Converter
3GR	Third Gear	-
4GR	Fourth Gear	-