{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Electrical Wiring Diagram","section":"RWW","section_name":"Rear Wiper and Washer","page":3,"pages_in_section":3,"title":"System Outline","section_header":"Rear Wiper and Washer System","ocr_text":"SYSTEM OUTLINE\n\nWHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS TO TERMINAL 2 OF THE WASHER MOTOR, TERMINAL 1 OF THE REAR WIPER MOTOR AND RELAY THROUGH THE WIPER FUSE.\n\n1. REAR WIPER NORMAL OPERATION\nWITH THE IGNITION SW IS TURNED ON AND THE REAR WIPER AND WASHER SW TURNED ON, THE CURRENT FLOWING TO TERMINAL 1 OF THE REAR WIPER RELAY FLOWS TO TERMINAL 3 OF THE RELAY → TERMINAL 1 OF THE REAR WIPER AND WASHER SW → TERMINAL LM → TO GROUND. THUS, THE RELAY COIL IS ACTIVATED AND THE CURRENT TO TERMINAL 1 OF THE RELAY FLOWS TO TERMINAL LM → TERMINAL LM OF THE REAR WIPER MOTOR → MOTOR → TO GROUND AND CAUSES THE MOTOR TO OPERATE THE WIPER.\n\n2. REAR WIPER INTERMITTENT OPERATION\nWHEN THE IGNITION SW IS ON AND THE REAR WIPER AND WASHER SW IS TURNED TO INT POSITION, CURRENT FLOWING TO TERMINAL 1 OF THE REAR WIPER MOTOR AND RELAY FLOWS TO TERMINAL 2 OF THE RELAY → TERMINAL 10 OF THE REAR WIPER AND WASHER SW → TERMINAL 1E → GROUND.\n\nTHIS CAUSES THE MOTOR TO OPERATE (THE POINT CHANGES) AND THE INTERMITTENT CIRCUIT OF THE RELAY OPERATES. INTERMITTENT OPERATION OF THE CIRCUIT IS CONTROLLED BY THE CHANGING AND DISCHARGING OF THE CONDENSER INSTALLED INSIDE THE RELAY.\n\n3. WASHER OPERATION\nWITH THE IGNITION SW TURNED ON AND THE REAR WIPER AND WASHER SW TURNED TO ON POSITION, WHEN THE WIPER SW IS TURNED FURTHER, THE CURRENT FLOWING TO TERMINAL 2 OF THE WASHER MOTOR FLOWS TO TERMINAL 3 OF THE MOTOR → TERMINAL 2 OF THE REAR WIPER AND WASHER SW → TERMINAL 16 → TO GROUND, SO THAT THE WASHER MOTOR ROTATES AND THE WINDOW WASHER EJECTS THE SPRAY. ONLY WHILE THE SWITCH IS FULLY TURNED.\n\nWHEN THE WIPER SW IS OFF AND THEN TURNED TO WASHER ON (WIPER OFF SIDE), ONLY THE WASHER OPERATES.\n\nSYSTEM OUTLINE\n\nW1 WASHER MOTOR\n2–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION\n3–GROUND : CONTINUOUS WITH WASHER SW TURNED ON\n\nR15 REAR WIPER MOTOR AND RELAY\n1–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION\n2–GROUND : CONTINUOUS WITH REAR WIPER SW AT INT POSITION\n3–GROUND : CONTINUOUS WITH REAR WIPER SW AT ON POSITION\n\n: PARTS LOCATION\n\nCODE | SEE PAGE | CODE | SEE PAGE | CODE | SEE PAGE\nC14 | 28 | W1 | 25 (2JZ–GTE)\nR15 | 30 | | 27 (2JZ–GE)\n\n: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR\n\nCODE | SEE PAGE | JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)\n1A | 20 | ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)\n1H | |\n1J | 20 | COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)\n1K | |\n\n: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS\n\nCODE | SEE PAGE | JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)\nIB2 | 36 | ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)\nIC2 | 36 | FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)\nBM1 | 40 | BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)\nBO1 | 40 | BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)\n\n: GROUND POINTS\n\nCODE | SEE PAGE | GROUND POINTS LOCATION\nIE | 36 | LEFT KICK PANEL\n\n: SPLICE POINTS\n\nCODE | SEE PAGE | WIRE HARNESS WITH SPLICE POINTS | CODE | SEE PAGE | WIRE HARNESS WITH SPLICE POINTS\nE9 | 32 | ENGINE ROOM MAIN WIRE | E21 | 34 | ENGINE ROOM MAIN WIRE\n\n205","image":"https://tsrm.sasquatchvc.com/images/mk4-ewd/RWW/RWW_003.png","url":"https://tsrm.sasquatchvc.com/mk4/ewd/RWW/3","prev":{"page":2,"url":"https://tsrm.sasquatchvc.com/mk4/ewd/RWW/2","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RWW/2"},"next":null,"section_url":"https://tsrm.sasquatchvc.com/mk4/ewd/RWW","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RWW/1","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RWW/2","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RWW/3"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}