TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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WD/Wiring Diagrams49 / 277
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POWER SOURCE (Current Flow Chart) — MK4 Supra Wiring Diagrams, page 49
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POWER SOURCE (Current Flow Chart) *1: (FOR CANADA) *2: (FOR USA) *Page Nos. of Related Systems Parts Code or Location Location CB or Fuse Column Headers (Page Numbers): 96 164 220 | 118 | 70 82 | 118 | 118 | 118 | 140 | 220 | 228 | 220 | 112 | 60 64 70 82 140 150 | 79 82 140 155 228 | 102 106 | 102 106 | 102 | 102 | 111 | 111 | 126 Parts: Daytime Running Light Relay (Main) | Diode (for Interior Light) | Diode (for Idle-Up) | Door Courtesy SW LH | Door Courtesy SW RH | Door Key Lock and Unlock SW LH | Electronically Controlled Transmission Solenoid | Engine Coolant Temp. Sender (Water Temp. Sender) | Engine Coolant Temp. SW (Water Temp. SW) | Engine Oil Level Sensor | Electronically Controlled Transmission Pattern Select SW | Engine Control Module (ECM) (Electronically Controlled Transmission ECU) | Engine Control Module (ECM) (Electronically Controlled Transmission ECU) | Front Fog Light and Parking Light LH | Front Fog Light and Parking Light RH | Front Side Marker Light LH | Front Side Marker Light RH | Front Turn Signal Light LH | Front Turn Signal Light RH | Front Wiper Motor CB Codes: D6 | D7 | D8 | D10 | D11 | D12 | E2 | E4 | E5 | E7 | E8 | E9 | E10 | F3 | F4 | F5 | F6 | F7 | F8 | F9 ① J/B No. 1: 7.5A HTR ●(E5) ●(E10) 7.5A IGN ●(E10) 7.5A RAD No. 2 7.5A ST ●(E9) 7.5A TURN ●(F8) ●(F9) 10A ECU-B 10A ECU-IG 10A GAUGE ●(D6) ●(E4) ●(E7) ●(E9) ●(E10) 10A MIR-HTR ●(D8) ●(E10) 10A PANEL ●(D8) ●(E8) ●(E10) 10A TAIL ●(F3) ●(F4) ●(F5) ●(F6) 15A CIG 15A SEAT-HTR 15A STOP ●(E10) 20A WIPER ●(F9) 30A DEFOG 30A DOOR ② R/B No. 2: 7.5A ALT-S 7.5A DOME ●(D6) ●(D7) ●(D10) ●(D11) ●(D12) 7.5A DRL 7.5A TRAC 15A FOG ●(F3) ●(F4) 15A HAZ-HORN ●(F8) ●(F9) 15A HEAD (LH) *2 15A HEAD (LH-LWR) *1 15A HEAD (LH-UPR) *1 15A HEAD (RH) *2 15A HEAD (RH-LWR) *1 15A HEAD (RH-UPR) *1 20A RAD No. 1 30A ABS No. 2 30A EFI No. 1 ●(E4) ●(E9) ●(E10) 30A EFI No. 2 30A FAN 50A HTR 50A MAIN ●(D6) 60A ABS No. 1 60A POWER ●(D6) * These are the page numbers of the first page on which the related system is shown. The part indicated is located somewhere in the system, not necessarily on the page indicated here. [LOCATION] (1) : J/B No. 1 (See page 20) (2) : R/B No. 2 (See page 22) (3) : R/B No. 4 (See page 23) 48