Lexus SC II facelift (2005-2010) air bag Wiring diagrams

1 2 3 4 5 +B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CPUB 5 4 3 2 1 GND TXCT RXCK CODE +B 7 15 16 HRLY 7 6 IMO IMI AIR BAG BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/ WHT WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CNCL CODE RXCK TXCT AGND GND COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM INTERIOR LIGHTS SYSTEM CRA RELAY DATA DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) ED (REAR OF LEFT FENDER) EFIO EFII ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) EXTERIOR ROOM 2 R/B) LIGHTS SYSTEM FRONT CONTROLLER GRN BLK/ WIRE GRN WIRE GRN/ YEL WIRE GRY WIRE HDCY HEAD LP RELAY HEADLIGHTS SYSTEM HORN FUSE HORN RELAY HORN RLY HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IG (25-28 NOT USED) 29 30 31 32 33 RDA RSSI IGN FUSE IH (UNDER STEERING COLUMN) IND BZR JUNCTION CONNECTOR 2 (IN ENGINE JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) LT GRN WIRE LT GRN/BLK WIRE MAIN FUSE MAIN LUGGAGE COMPARTMENT DOOR OPENER SWITCH MPX ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (RIGHT SIDE KICK PANEL) PNK WIRE PNK/BLU WIRE RCO (16-19 NOT USED) 20 21 22 23 24 GND RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RSSI TAIL-RLY THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) THEFT DETERRENT HORN (AT RIGHT FRONT OF ENGINE COMPT) TRANSPONDER KEY AMPLIFIER (BEHIND DASH, RIGHT OF STEERING COLUMN) TRANSPONDER KEY COIL UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WIRELESS DOOR LOCK BUZZER (LEFT REAR OF SECURITY ENGINE COMPT) INDICATOR LIGHT WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE

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

13 33 29 30 15 MPX 5 9 10 8 +5 RSSI DATA A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AFS ECU (LEFT END OF DASH) AIR BAG BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) DBIL DOME FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER'S SIDE J/B ECU ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPARTMENT, FORWARD OF STRUT TOWER) FRONT CONTROLLER FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IG (BEHIND CENTER OF DASH) IGNITION KEY CYLINDER LIGHT IH (UNDER STEERING COLUMN) ILE FSPT INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 18 (RIGHT REAR OF LUGGAGE COMPT) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) LEFT FOOT LIGHT LEFT VANITY LIGHT LT GRN/BLK WIRE MAP DOOR MAP MPX MPX-B ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PBIL PERSONAL LIGHT PNK/BLU WIRE RDA RSSI RCO RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT BUCKLE SWITCH (IN RIGHT FRONT SEAT BELT BUCKLE) RIGHT FOOT LIGHT RIGHT SCUFF PLATE LIGHT RIGHT VANITY LIGHT THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) TIRE PRESSURE WARNING ECU, RECEIVER (BEHIND CENTER OF DASH, BELOW RADIO) TRANSPONDER KEY COMPUTER (LEFT SIDE OF DASH, BEHIND GAUGE ASSEMBLY) UNLOCK WARNING SWITCH VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE

3 11 6 5 WSH-RLY WLVL 4 9 1 2 MPX- S/M S/S +2 AIR BAG BLK WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ED (REAR OF LEFT FENDER) ENGINE ROOM R/B 2 (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) FRONT CONTROLLER FRONT WIPER MOTOR (ON LEFT SIDE OF FIREWALL) GRN WIRE GRY WIRE GRY/BLU WIRE HEADLAMP WASHER CIRCUIT HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) D-IG FUSE J/C 3 (IN ENGINE ROOM 2 R/B) J/C 8 (BEHIND LEFT END OF DASH) MPX PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (RIGHT SIDE KICK PANEL) POWER SUPPLY CIRCUIT RED WIRE RED/YEL WIRE VIO WIRE WASH RELAY WASHER FUSE WASHER IND WASHER LEVEL SENSOR (LEFT FRONT OF ENGINE COMPARTMENT) WASHER MOTOR (LEFT FRONT OF ENGINE COMPARTMENT) WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIP WIPER FUSE YEL WIRE

10 9 5 8 DATA RSSI +5 21 29 30 22 PWS PWE 6 1 BDR GND AIR BAG AIR BAG SENSOR ASSEMBLY (UNDER FRONT OF CENTER CONSOLE) BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/WHT WIRE BUBS CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER D DOOR FUSE D-IG FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) FUSE GLOVE BOX LIGHT GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IG (BEHIND CENTER OF DASH) IH (UNDER STEERING COLUMN) J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 17 (LEFT REAR OF LUGGAGE COMPT) J/C 18 (RIGHT REAR OF LUGGAGE COMPT) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX MPX RCO MPXB ORG/ WIRE P DOOR FUSE P-GND PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK WIRE PNK/BLU WIRE POWER SEAT ECU (DRIVER'S SEAT) (UNDER DRIVER'S SEAT) POWER SEAT ECU (FRONT PASSENGER'S SEAT) (UNDER FRONT PASSENGER'S SEAT) POWER WINDOW MASTER SWITCH PWE PWS DLE RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT DOOR LOCK CONTROL SWITCH SKID CONTROL ECU (BEHIND LEFT RIGHT POWER END OF DASH) WINDOW CONTROL SWITCH SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE

AIR BAG AIR BAG SENSOR ASSEMBLY (AT CENTER OF DASH, BELOW RADIO) BP (AT LEFT QUARTERPANEL) COMPUTER DATA LINES SYSTEM D-IG FUSE DBKL DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) BKLR HOT IN ON OR START J/C 17 (LEFT REAR OF LUGGAGE COMPT) LEFT BUCKLE SWITCH (IN LEFT FRONT SEAT BELT BUCKLE) LEFT TENSION REDUCER SOLENOID (AT BASE OF LEFT "B" PILLAR) PASSENGER SIDE J/B (RIGHT SIDE KICK PANEL) PASSENGER SIDE J/B ECU BKLL PNK/BLU WIRE RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT BUCKLE SWITCH (IN RIGHT FRONT SEAT BELT BUCKLE) RIGHT TENSION REDUCER SOLENOID (AT BASE OF RIGHT "B" PILLAR) WHT WIRE WHT/BLK WIRE

1 2 3 4 5 +B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CPUB 5 4 3 2 1 GND TXCT RXCK CODE +B 7 15 16 HRLY 7 6 IMO IMI AIR BAG BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/ WHT WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CNCL CODE RXCK TXCT AGND GND COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM INTERIOR LIGHTS SYSTEM CRA RELAY DATA DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) ED (REAR OF LEFT FENDER) EFIO EFII ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) EXTERIOR ROOM 2 R/B) LIGHTS SYSTEM FRONT CONTROLLER GRN BLK/ WIRE GRN WIRE GRN/ YEL WIRE GRY WIRE HDCY HEAD LP RELAY HEADLIGHTS SYSTEM HORN FUSE HORN RELAY HORN RLY HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IG (25-28 NOT USED) 29 30 31 32 33 RDA RSSI IGN FUSE IH (UNDER STEERING COLUMN) IND BZR JUNCTION CONNECTOR 2 (IN ENGINE JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) LT GRN WIRE LT GRN/BLK WIRE MAIN FUSE MAIN LUGGAGE COMPARTMENT DOOR OPENER SWITCH MPX ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (RIGHT SIDE KICK PANEL) PNK WIRE PNK/BLU WIRE RCO (16-19 NOT USED) 20 21 22 23 24 GND RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RSSI TAIL-RLY THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) THEFT DETERRENT HORN (AT RIGHT FRONT OF ENGINE COMPT) TRANSPONDER KEY AMPLIFIER (BEHIND DASH, RIGHT OF STEERING COLUMN) TRANSPONDER KEY COIL UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WIRELESS DOOR LOCK BUZZER (LEFT REAR OF SECURITY ENGINE COMPT) INDICATOR LIGHT WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE