Lexus SC II facelift (2005-2010) ec (left side of cylinder head) Wiring diagrams

1 3 VZ GND 3 1 VZ (GND) GND (VZ) 3 1 VZ GND 5 6 7 PT MCOOL MHOT A/C AMBIENT TEMPERATURE SENSOR (AT CENTER OF FRONT BUMPER, BEHIND GRILLE) A/C COMP RELAY A/C FUSE A/C MAGNETIC CLUTCH, LOCK SENSOR (ON A/C COMPRESSOR) ACMG AIR BAG AIR INLET CONTROL SERVO MOTOR (BEHIND RIGHT SIDE OF DASH) AIR MIX CONTROL SERVO MOTOR (DRIVER SIDE) (BEHIND LEFT CENTER SIDE OF DASH) AIR MIX CONTROL SERVO MOTOR (PASSENGER SIDE) (BEHIND RIGHT CENTER SIDE OF DASH) AIR VENT MODE SERVO MOTOR (BEHIND CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) IF DUAL EC (LEFT SIDE OF CYLINDER HEAD) ED (REAR OF LEFT FENDER) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE COOLANT TEMPERATURE SENSOR (ON TOP RIGHT SIDE OF ENGINE) FAN RELAY GND(S) GND(M) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR ON PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RADIO 2 FUSE HTR RELAY II (ON LEFT SIDE DASH BRACE) JUNCTION CONNECTOR 1 JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 4 (IN ECU BOX) JUNCTION CONNECTOR 8 (BEHIND LEFT END OF DASH) LCKI MPOS 1 MPOS 2 MPOS 6 MPX ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PRESSURE SWITCH (AT UPPER LEFT RADIATOR SUPPORT) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RFC SINGLE TAM VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

+BM 1 2 3 4 5 6 22 23 28 29 M- M+ 2 4 5 6 8 13 17 EC BATT 3 4 26 27 31 32 33 34 35 TC STP ACCEL PEDAL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER COMPT, IN ECU BOX) COMPUTER DATA LINES SYSTEM CRUISE CRUISE CONTROL SWITCH (COMBINATION SWITCH) CRUISE IND DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) STPI EB (RIGHT SIDE OF CYLINDER HEAD) EC (LEFT SIDE OF CYLINDER HEAD) ECC RES/ ED (REAR OF LEFT FENDER) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE ENGINE ROOM 2 R/B (ON LEFT EFI RELAY GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES STOP FUSE HOT IN ON OR START DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) D-IG FUSE IH (UNDER STEERING COLUMN) JUNCTION CONN- ECTOR 2 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR JUNCTION CONNECTOR 2 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 4, 5 (IN ECU BOX) JUNCTION CONNECTORS 5 (IN ECU BOX) MREL IGSW NCA WIRE PARK/ NEUTRAL POSITION SWITCH (ON TRANSMISSION) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SET/ COAST SG TC SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) SKID CONTROL ECU (BEHIND LEFT END OF DASH) SPEEDOMETER STOP LIGHT SWITCH (ON TOP OF BRAKE PEDAL BRACKET) THROTTLE BODY ASSEMBLY VEHICLE SPEED SENSOR (ELECTRONICALLY CONTROLLED TRANSMISSION) (ON TRANSMISSION) VIO WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE YEL RED/ WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

12 4 TS D/G 16 3 TACH TC 24 25 CANL CANH BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CG SG CANH SIL COMBINATION METER DATA LINK CONNECTOR (DLC) 3 (BEHIND LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EC (LEFT SIDE OF CYLINDER HEAD) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE HOT AT ALL TIMES J/C 25 (BEHIND RIGHT SIDE OF DASH) J/C 4, 5 (IN ECU BOX) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) MULTI-DISPLAY OBD FUSE PNK WIRE PNK/BLK WIRE RED WIRE SIL SKID CONTROL ECU (BEHIND LEFT END OF DASH) TAC TRANSLATE ECU (LEFT SIDE OF DASH) TS TC CANL WHT WIRE WHT/BLK WIRE WHT/GRN WIRE

10 9 ATX+ ATX- 15 5 TX- TX+ 17 18 19 23 24 25 26 27 28 SGND MCO+ MCO- VR 3 6 TXS+ TXS- PNK WIRE 9 10 3 4 5 6 20 21 22 TLSW TSW- SGND MIN+ MIN- MACO SLD IVO+ IVO- AIR CONDITIONING SYSTEM BLK WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CLOSE TILT COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EC (LEFT SIDE OF CYLINDER HEAD) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) GRN/RED WIRE GRY WIRE HOT IN IH (UNDER STEERING COLUMN) J/C 4, 5 (IN ECU BOX) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) LT GRN WIRE LT GRN/BLK WIRE MIC+ MIC- MACC MIC- MIC+ MICROPHONE (NAVIGATION) MICROPHONE AMPLIFIER ASSEMBLY (RIGHT KICK PANEL) MULTI-DISPLAY NAVIGATION DOOR, TILT CONTROL NCA WIRE OPEN/ CLOSE OPEN 8 3 9 ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PKB SPD IG PNK WIRE PNK/BLK WIRE RADIO, PLAYER RED WIRE RED/BLK WIRE RED/WHT WIRE STARTER FUSE SYNC VG TAIL TLSW VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

19 30 9 SFTD SFTU 2 9 32 8 6 16 17 18 19 10 11 12 13 26 27 34 35 23 22 21 20 7 25 24 SR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) EB (RIGHT SIDE OF CYLINDER HEAD) EC (LEFT SIDE OF CYLINDER HEAD) ENGINE CONTROL MODULE (ECM) (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE COOLANT TEMPERATURE SENSOR (ON TOP RIGHT SIDE OF ENGINE) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE IG (BEHIND CENTER OF DASH) J/C 23 (LEFT SIDE OF ENGINE COMPT) J/C 4 (IN ECU BOX) LT BLU WIRE LT GRN WIRE M- M+ NCA WIRE NT- NT+ ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SLU- SLU+ EOIL OIL SLT- SLT+ THROTTLE BODY ASSEMBLY (TOP CENTER OF ENGINE) TRANSMISSION CONTROL SWITCH TURBINE SPEED SENSOR (ON TRANSMISSION) VEHICLE SPEED SENSOR (ELECTRONICALLY CONTROLLED TRANSMISSION) (ON TRANSMISSION) VIO WIRE VTA VC WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

B+ B- BLK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CANISTER PRESSURE SENSOR CANISTER PUMP MODULE (REAR OF VEHICLE CHASSIS) EB (RIGHT SIDE OF CYLINDER HEAD) EC (LEFT SIDE OF CYLINDER HEAD) GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE IH (UNDER STEERING COLUMN) J/C 24 (LEFT SIDE OF ENGINE COMPT) J/C 4 (IN ECU BOX) J/C 4, 5 (IN ECU BOX) LEAK DETECTION PUMP LEVEL TEMP LT GRN WIRE NCA WIRE ORG/ WIRE P/N SGND VCC VOUT VENT VALVE WHT WIRE WHT/BLK WIRE YEL/BLK WIRE