TSRM/MK4 Supra/Wiring Diagrams
Repair ManualWiring Diagrams
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TL/Taillights3 / 4
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TAILLIGHT — MK4 Supra Taillights wiring diagram, page 3
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TAILLIGHT SYSTEM OUTLINE WHEN THE LIGHT CONTROL SW IS TURNED TO TAIL OR HEAD POSITION, THE CURRENT FLOWS TO TERMINAL 3 OF THE LIGHT FAILURE SENSOR THROUGH THE TAIL FUSE. WHEN THE IGNITION SW IS TURNED ON, THE CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 8 OF THE LIGHT FAILURE SENSOR, AND ALSO FLOWS THROUGH THE REAR LIGHT WARNING LIGHT TO TERMINAL 4 OF THE LIGHT FAILURE SENSOR. TAILLIGHT DISCONNECTION WARNING WITH THE IGNITION SW ON AND THE LIGHT CONTROL SW TURNED TO TAIL OR HEAD POSITION, IF THE TAILLIGHT CIRCUIT IS OPEN, THE LIGHT FAILURE SENSOR DETECTS THE FAILURE BY THE CHANGE IN CURRENT FLOWING FROM TERMINAL 3 OF THE LIGHT FAILURE SENSOR TO TERMINAL 9, AND THE WARNING CIRCUIT OF THE LIGHT FAILURE SENSOR IS ACTIVATED. AS A RESULT, THE CURRENT FLOWS FROM TERMINAL 4 OF THE LIGHT FAILURE SENSOR → TERMINAL 11 → GROUND AND TURNS THE REAR LIGHT WARNING LIGHT ON, WHICH REMAINS ON UNTIL THE LIGHT CONTROL SW IS TURNED OFF. SERVICE HINTS TAILLIGHT RELAY 5–3: CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION L 2 LIGHT FAILURE SENSOR 4, 8–GROUND: APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION 3–GROUND: APPROX. 12 VOLTS WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION 11–GROUND: ALWAYS CONTINUOUS : PARTS LOCATION CODE SEE PAGE CODE SEE PAGE CODE SEE PAGE C13 28 F5 26 (2JZ–GE) R9 30 F3 24 (2JZ–GTE) F6 24 (2JZ–GTE) R10 30 26 (2JZ–GE) 26 (2JZ–GE) R11 30 F4 24 (2JZ–GTE) I20 29 R12 30 26 (2JZ–GE) L1 30 T6 29 F5 24 (2JZ–GTE) L2 30 : RELAY BLOCKS CODE SEE PAGE RELAY BLOCKS (RELAY BLOCK LOCATION) 2 22 R/B NO. 2 (ENGINE COMPARTMENT LEFT) : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR CODE SEE PAGE JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION) 1A 20 ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL) 1B 1C 20 FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL) 1E 20 INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL) 1J 20 COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL) 1K 2A 22 BATTERY AND J/B NO. 2 (ENGINE COMPARTMENT LEFT) : CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS CODE SEE PAGE JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION) IE1 36 INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL) : GROUND POINTS CODE SEE PAGE GROUND POINTS LOCATION EA 32 (2JZ–GTE) FRONT SIDE OF RIGHT FENDER 34 (2JZ–GE) EB 32 (2JZ–GTE) FRONT SIDE OF LEFT FENDER 34 (2JZ–GE) IE 36 LEFT KICK PANEL BI 40 LEFT QUARTER PILLAR BJ 40 LOWER BACK PANEL CENTER 104