TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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WD/Wiring Diagrams85 / 277
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ENGINE — Wiring Diagram — MK4 Supra Wiring Diagrams, page 85
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*1 : CALIFORNIA *2 : EXCEPT CALIFORNIA *3 : ENGINE AND ELECTRONICALLY CONTROLLED TRANSMISSION ECU FROM POWER SOURCE SYSTEM (SEE PAGE 56) 10A MIR-HTR 10A PANEL 15A STOP 4 1R 6 1E 10 I1 L-R G-O W D 8 DIODE (FOR IDLE-UP) L-R 3 2 S11 STOP LIGHT SW R-Y 32 II1 R-Y 15 A ELS G-W 11 IJ1 G-W 4 A STP BR-B E27 BR-B E28 BR-B E28 BR-B BR-B BR-B (A/T) T2 THROTTLE POSITION SENSOR 4 3 2 1 TO CRUISE CONTROL ECU E 3 ENGINE COOLANT TEMP. SENSOR (EH WATER TEMP. SENSOR) A 5 A/T FLUID TEMP. SENSOR E 1 EGR GAS TEMP. SENSOR L-R Y R L-Y O BR-Y (A/T) I17 R 43 B 64 B VTA1 IDL1 44 B THW 24 B OIL 46 B THG E 9 B, E10 A ENGINE CONTROL MODULE (*3) 48 B OX1 73 B HT1 47 B OX2 72 B HT2 (SHIELDED) (SHIELDED) W I17 R-L (*2) W W (*1) (SHIELDED) R-L I17 B-Y (*2) R-L (*1) B-Y (*1) R-L (SHIELDED) B-R B-W L-R O 3 OXYGEN SENSOR (EXCEPT CALIFORNIA ON FRONT SIDE) 1 2 B-R W 3 OX HT M 2 MAIN HEATED OXYGEN SENSOR (FOR CALIFORNIA ON FRONT SIDE) +B 4 E B-R (*1) BR (*1) O 4 OXYGEN SENSOR (EXCEPT CALIFORNIA ON REAR SIDE) 1 2 B-R 3 OX HT M 3 MAIN HEATED OXYGEN SENSOR (FOR CALIFORNIA ON REAR SIDE) +B 4 E B-R (*1) BR (*1) W (SHIELDED) (SHIELDED) (SHIELDED) (SHIELDED) BR E27 BR E28 B-R E23 B-R E23 B-R E26 B-R BR (*1) BR (*1) B-W L-R BR ED 87