{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Electrical Wiring Diagram","section":"RFAC","section_name":"Radiator Fan and Automatic Air Conditioning","page":9,"pages_in_section":11,"title":"Service Hints","section_header":"Radiator Fan and Automatic Air Conditioning","ocr_text":"RADIATOR FAN AND AUTOMATIC AIR CONDITIONING\n\nSERVICE HINTS\n\nA 4 A/C MAGNETIC CLUTCH\n4 – GROUND: APPROX. 3.7\n\nA 3(A) A/C DUAL PRESSURE SW [A/C TRIPLE PRESSURE SW] (2JZ–GTE)\n(A) I–(A) 4 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM²) OR 3140 KPA (458 PSI, 32 KG/CM²)\n\nA 3(B) A/C DUAL PRESSURE SW (2JZ–GE)\n(B) I–(B) 2 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM²) OR 3140 KPA (458 PSI, 32 KG/CM²)\n\nA12(C), A13(A), A14(B) A/C AMPLIFIER\n+B – GROUND: ALWAYS APPROX. 10–14 VOLTS\nIG – GROUND: APPROX. 10–14 VOLTS WITH IGNITION SW AT ON POSITION\nHR – GROUND: APPROX. 10–14 VOLTS WITH IGNITION SW AT ON POSITION AND DO NOT TURN THE BLOWER MOTOR BELOW 1 VOLTS WITH IGNITION SW AT ON POSITION AND TURN THE BLOWER MOTOR\nACC – GROUND: APPROX. 10–14 VOLTS WITH IGNITION SW AT ACC OR ON POSITION\nTW – GROUND: 10–14 VOLTS AT START THE ENGINE AND MAX. COLD POSITION OF A/C TEMP. CONTROL SW BELOW 1 VOLTS AT START THE ENGINE AND MAX. WARM POSITION OF A/C TEMP. CONTROL SW\nMGC – GROUND: BELOW 1 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND A/C SW ON POSITION 10–14 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND A/C SW OFF POSITION\nBLW – GROUND: 1.0–3.0 VOLTS WITH THE IGNITION SW ON AND TURN THE BLOWER MOTOR\nSS – GROUND: 4–6 VOLTS WITH THE IGNITION SW ON\nSG – GROUND: ALWAYS CONTINUOUS\nAMH – AMC 13–19 VOLTS WITH IGNITION SW OFF\nAOF – GROUND: APPROX. 12 VOLTS WITH FACE SW ON\nAOD – GROUND: APPROX. 12 VOLTS WITH DEF SW ON\nGND – GROUND: ALWAYS CONTINUOUS\n\n: PARTS LOCATION\n\nCODE | SEE PAGE | CODE | SEE PAGE | CODE | SEE PAGE\nA 1 | 24 (2JZ–GTE) | A17 | 28 | H12 A | 29\n | 26 (2JZ–GE) | A24 | 28 | H13 B | 29\nA 2 | 24 | A25 | 28 | I | 27\nA 3 A | 24 (2JZ–GTE) | A26 | 28 | J 1 | 29\n B | 26 (2JZ–GE) | B 3 | 28 | R 1 | 25\nA 4 | 24 (2JZ–GTE) | B 4 A | 28 | R 2 | 25\n | 26 (2JZ–GE) | B 5 B | 28 | R 3 | 25\nA12 C | 28 | C10 A | 28 | T 6 | 29\nA13 A | 28 | C12 B | 28 | V10 | 25 (2JZ–GTE)\nA14 B | 28 | E 5 | 24 | | 27 (2JZ–GE)\nA15 | 28 | E10 | 29\nA16 | 28 | E11 | 29\n\n: RELAY BLOCKS\n\nCODE | SEE PAGE | RELAY BLOCKS (RELAY BLOCK LOCATION)\n2 | 22 | R/B NO. 2 (ENGINE COMPARTMENT LEFT)\n4 | 23 | R/B NO. 4 (LEFT KICK PANEL)\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 JB NO. 1 (LEFT KICK PANEL)\n1E | 20 | INSTRUMENT PANEL WIRE AND JB NO. 1 (LEFT KICK PANEL)\n1H | 20 | COWL WIRE AND JB 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)\nEA1 | 32 (2JZ–GTE) | ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO. 2)\n | 34 (2JZ–GE)\nIB2 | 36 | ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)\nIB4 | 36 | ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)\nIB6\nIF1 | 36 | INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)\nIF3 | 36 | INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)\nIG1 | 38 | INSTRUMENT PANEL WIRE AND COWL NO. 3 WIRE (BEHIND HEATER CONTROL SW)\nIi1 | 38 | ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)\nIK1 | 38 | COWL NO. 4 WIRE AND COWL WIRE (RIGHT KICK PANEL)\n\n236","image":"https://tsrm.sasquatchvc.com/images/mk4-ewd/RFAC/RFAC_009.png","url":"https://tsrm.sasquatchvc.com/mk4/ewd/RFAC/9","prev":{"page":8,"url":"https://tsrm.sasquatchvc.com/mk4/ewd/RFAC/8","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/8"},"next":{"page":10,"url":"https://tsrm.sasquatchvc.com/mk4/ewd/RFAC/10","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/10"},"section_url":"https://tsrm.sasquatchvc.com/mk4/ewd/RFAC","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/1","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/2","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/3","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/4","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/5","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/6","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/7","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/8","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/9","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/10","https://tsrm.sasquatchvc.com/api/pages/mk4/ewd/RFAC/11"],"note":"OCR transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}