ELECTRICAL WIRING DIAG RAMS - supras.org.nz

1 ELECTRICAL WIRING . DIAG RAMS. H O W TO READ THIS SECTION. PIN NUMBER. Numbered in order Numbered in order from upper left to from upper right to lower right lower left Pin Female Ma'e BE0832. Male & female connectors distinguished by shape of their internal pins. All connectors are shown from the open end, and the lock is on top. % When connectors with different numbers of terminals are used with the same parts, the pin number and the numbers of terminals are specified. Female / Male ( 1 14) = No. 1 pin14 terminals connector BE0833. JUNCTION BLOCK OR RELAY BLOCK. Wire Color Wire Color I #'. Block Inside WIRE COLOR. Wire colors are indicated by an alphabetical code. B = Black BR = Brown G = Green GR = Gray L = Blue LG = Light Green 0 = Orange P = Pink R = Red V = Violet W = White Y = Yellow The 1s t letter indicates the basic wire color and the 2nd indicates the stripe color Example: R-G indicates a Red wire with a Green stripe.

2 ABBREVIATION. The following abbreviations are used in this WIRING diagram. = Anti- Lock Brake System LH = Left-Hand A/C = Air Conditioner MI T = Manual Transmission A/T = Automatic Transmission O/D = Overdrive CB = Circuit Breaker OX = Oxygen CD = Compact Disc PPS = Progressive Power Steering COMB. = Combination RH = Right-Hand ECT = Electronic Controlled Transmission SW = Switch ECU = Electronic Controlled Unit TCCS = Toyota Computer Controlled System EFI = Electronic Fuel Injection TEMS = Toyota Electronic Modulated Suspension EGR = Exhaust Gas Recirculation VSV = Vacuum Switching Valve FL = Fusible Link wl = With ISC = Idle Speed Control w/o = Without SYSTEM INDEX. TOYOTA SUPRA 1990 Model (Page 1 to Page 9). SYSTEMS LOCATION SYSTEMS LOCATION. (Anti-Lock Brake System) PPS. Air Conditioner, Cooler and Heater Power Seat Auto Antenna Power Source Power Windows Back-up Lights Radiator Fan and Charging Condenser Fan Radio and Tape Player Cigarette L~ghter Rear Window Defogger Clock Rear Wiper and Washer Combination Meter Remote Control Cruise Control Mirrors with Heater Shift Lock System Door Locks SRS Airbag ECT (Electronic Control Transmission).

3 Starting Engine Control Stop Lights Fog Lights Taillights and Illumination 5-4. Front Wiper and Washer TEMS. Headlight Cleaner Theft Deterrent 4-8. System Headlights Turn Signal and Hazard 3 -4. Horn Interior Lights Unlock and Seat Belt Warning @ 6-1. W 4. W-R 8. Ib 1. I, F. 3. 2. I, : - m - e 1 to Page 9). I. '? (Ex. Canada A I T ). ,, -2. 2 ,B - 0. I. 0-y T.. I- -a E. r EFI MAIN. RELAY. CLUTCH 11. S T A R T SW. (MITI To Cruise Control Clutch SW (5-21. +To Theft Deterrent Computer ). INJECTOR. START INJECTOR. r l M E SW. sunder r ~ g h front t pillar f = Located on back panel Engine Control (7M-GE). I wI. 1 4 'SV FG Lk E01 #10 STA STJ NSW ISC ISC G- G2 NE IGT IGF THW OX1 FP THA VS VC BATT. EGR SPD. W DEF ECT LP El1 +Bl E2 Ll L2 L3 AIC. I. I M I T ) B-Y I A I T ) B-W. VSV (For Intake Air Control).

4 TO. CCII I" f\ - Y-L - T CCI IfilAT. n I ER TEMP. SENSOR. FIDL. B-R. ECT LC." ~ r rrn. THW. $1 THROTTLE POSITION SENSOR I I EGR GAS TEMP. SENSOR. (California) VSV (For EGR) I. THG. 8-Y. I EGR. 2 W-R. VTA. 1 u-n +B1 ISC3. G L-R. 4. LG-R. - LG-R. L-R. VC ISC4. ISC2. vs 6 CHECK ENGINE. BR. 5. - BR. E2. W. (COMB. METER). 1 /12 Y. - From "GAUGE" Fuse LG LG 12-51. THA. 7 O X SENSOR (Sub.)(California) (Wire t o Wire \. \Connector 1. 1. BR GR B-O. (b Ell I G SW From "IGN" Fuse ( ). m R -L HT. AIC. L-R L-R. From A I C Amplifier 17-71. I To TEMS. ox2 Computer (3-71. a I I B L2. OX SENSOR (Main). ,---A C L3. 8 CHECK CONNECTOR. 9 GR. I W , I. L - - I{ A ~ V~F l DEF. SPD. LP. R-Y. P. R-Y == From Defogger Relay ). From Headl~ghtRelay 15-71. To Speed Sensor 12-1I. OX1. 4 W. I -. OX1. 'ECT. IGT.))}

5 R-L. , - =. To ECT ECU (2-6). LG-B. I. L--4 IGF. 6 R-G R-G KNOCK SENSOR. E2. TE 1. EI BR "'1 r 'El KNK..- IG. TT. , , T, C. - 18 17 (16 V. From TEMS Computer (3-7). Y iBFrom ECT ECU (2-61. I 6. = From lgn~ter(1-71. W. G- W . R fli30 G2. #20. *I0 E01. -- G- - STJ E02. IGNITION COIL. AND IGNITER. IGNITION. COIL. I- SPEED SENSOR. ; = To Light Failure Sensor (5-3). RADIATOR. F L U I D L E V E L SW. - V-G. F U E L SENDER. 1 W-B. I. PARKING BRAKE SW. 3 3. OIl0. m - -L. BRAKE F L U I D. dh L E V E L SW. 14. TO Alternator u "L(1-7) m[. From Cruise Control Computer (5-21. From Computer 03-21. Ground points a = Located on left fender b = Located on engine block C = Located under left front pillar I I. Rear Window Defogger 1 OIL. PRESSURE SENDER. OIL. F U E L SENDER. L-R. 1 4. 6 BR. TURBO LT.))))]

6 PRESSURE SENSOR m 313 BR. CRlVE. CIRCUIT. 8. -D From Igniter (1-7)(8-8). VOLT. WATER. TEMP. SENDER. d = Located under r ~ g hfront t p~llar e =Located b e h ~ n dr a d ~ o f= Located on back panel I. ECT (Electronic Controlled Transmission). f- T o Computer 18-21. T o Heater Relay, A I C Relay Box & Heater Control Assembly 17 2). ECT. PATTERN. F r o m "ECU-IG" Fuse 13-6) SELECT SW. I. From AIT R 0 0. "DOME" Fuse (6-7) INDICATOR. t i F r o m Stop L ~ g hSW. t 15-31. SW ( A I T ) N. 2 0. 0. Q. 0. t T o A Computer ,W. 4/~13/6616/6/s,l - ?I s, 'hL. - - W ~ r et o W ~ r e - R-B ( A I T-)- IT. m 24. IG. oI 23. t~. Z. 0. BK. 22. 18-21. ' ,2 0 , ~ : L ~. (Connector N. )$I81. P. I ECT ECU. Wire t o P-G. Wire Connector ECT SOLENOID. From "CIG" Fuse From "ECU-IG". Fuse (3-7). From Stop L ~ g h t SW (5-3).

7 1. L-R. I. G-R. I G-W SHIFTLOCK. P2 CONTROL COMPUTER. TOYOTA SUPRA (Cont'd). JI WIPER A N D W A S H E R SW 07. L-6 P-E. - 4. >. ' W-R. L 5 L-0. 5 w 6. a: HEADLIGHT CLEANER. RELAY. i m 5. 3. 5'. 5. [r i 3 d > I. 11. To L ~ g h Control t SW. (5-7). ( w i l r e t o Wire Connector HORN R E L A Y. STEERING. SENSOR. OR R H. AETER) 3 TEMSSI. p GNAL. :E L I G H T R H. IF- % LIGHT). 1. TOYOTA SUPRA 3. ft Lock Control Computer (2-8). use Control Main Relay (5-1)..- L. o 0. U. W. 3 2*..c rn Computer (8-2). c c 2 (0. 0- %ration Relay No. 2 (5-7) 8- t% U. cm? a o to Antenna Motor and Control Relay ( ). T ECU 12-51. zu, f& pu E@ 5. US z2 u = 5~. tl". 1b ,"I ,"& F. 4. AL AL v v 11 11. -1. 3. a m 6. 5. 2 4/1~ > 1/12 a 1/10 a 4/1~5/1~12/12 1 /12. +B HCK SPD L3 L2 L1 STP. TEMS COMPUTER. SS1 SS2 VS HL SL NL M- M+ SOL.]

8 $ 2/12 3/12 Y12 7/12 '112 9/12 p l0/1o + 9 < I 2 7' a 0 u 7'. LT. STEERING. SENSOR I. TEMS INDICATOR. $ (COMB. METER). 1. TEMS ACTUATOR. 4 TOYOTA SUPRA (Cont'd). 17 POWER SEAT SW (LU! ASSISTANT. M M. POWER WINDOW MOTOR SUPPROT MOTOR6. Ground points a = Located on left fender C = Located under left front pillar d =Located under right front p~llar f = Located on back panel -I. SW ( L U M B E R ) 11 IPOWER SEAT SW ( S L I D E ). u - - 7. a a a d J. 5 3. P. '" 3. 1. : 1. 1 ' >. -I. 12. 5 q -I. 10 =? 2. u W-B. I*. SEAT. FRONT. SLIDE 2 REAR. VERTICAL o -I. AOTORS POWER SEAT M O T O R. k panel . DOOR LOCK SOLENOID R H. L-R L. 41.. W P. -- W-B. d L. N. 'r m Ibu db +. TOYOTA SUPRl I. *. &. ,$. 9 Theft Deterrent E. e E. o :z D. ;'. I I I I 1 From Horn Relay(3 5). - - . F r o m "ECU-IG' ' Fuse (3-6).)

9 Ea -m 3. N : -0. - Y. - - P-B a G-Y. W. - b C. 3 s n rn CRUISE C O N T R O L SW. Wire tb Wire ( Connector s A. (COMB. SW). 0 a I CRUISE C O N T R O L V A C C U M PUMP. W-B. w /7M-GTEI. GR-R. 2. CRUISE C O N T R O L V A C U U M SW. (7M-GTE). II. CRUISE C O N T R O L STOP SW. A. G -Y. P-L. N. G-Y [.. PI. 1 R-BN. R-8. h: P-L. r BR-n BR-W. I - (AIT) R-\r F r o m ECT ECU (2-6) = 0. F r o m ECT Solenoid (2-5). ---+I. T o Speed Sensor (2-1) 4. T o Parking Brake SW. & Brake F l u i d Level SW 12-2). B-W ( A / T ) B-W I A I T I. T o Neutral Start SW. - B-L (M/T) 6-W ( A I T ) - B-Y ( M I T I. or Starter (1 -2)(8-3). T (Mm+k - t 9. A. - - r!(I]. CRUISE C O N T R O L rn CLUTCH SW ( M I T I Q. Stop Lights I - 3 I 4. (Canada). - I1. wy AIT INDICATOR. 1 LICENCE PLATE LIGHT RH. I LICENCE PLATE LIGHT L H I.))))

10 HEATER CONTROL. I REAR SlDE MARKER R H. (REAR COMB. LIGHT) I. G (USA). G-R (Canada). ASSY. I ECT PATTERN. SELECT SW. REAR SlDE MARKER L H W-G. (REAR COMB. LIGHT). C. w-Bl I TAILRH. (REAR COMB. L I G H T ). CLEARANCE R H. CLEARANCE L H I ( w i r e t o wire). Connector FRONT SlDE MARKER R H. FRONT SlDE MARKER L H I. G-R. &(USA, CIGARETTE LIGHTER. 3 G 3 n 1 ~ - ~. GLOVE BOX. GLOVE BOX L I G H T LIGHT SW. 3- G. FOG LIGHT SW I. 3, G 2 n 1 W-G. I. I. 5/1~ -- DEFOGGER SW. 3- G W-G ,3. I. 3, G. m 0. %o %2. COMB. METER. "3 "s - 3, G. H A Z A R D SW. /m? W-G _W-G ,3. R A D I O A N D TAPE PLAYER. (WIO CD Player). N-B. BACKLE SW. T o Unlock Warning SW (4-7) - G-W. V-R. m - SEAT BELT. LIGHT. A. 2. WARNIN';;.. in 4. O U T SIDE. HANDLE SW. W-B R-L R-L , 2 W. 2 2. To Radio and Tape Player (6-5)(6-6).)