Lexus RX III (2008-2012) combination meter assembly Wiring diagrams

1 5 8 9 PNK WIRE 23 24 PNK CANH CANL WIRE 26 20 25 PNK IG WIRE AFS FUSE (ON LEFT SIDE OF ENGINE COMPT) AUTO TAIL BLK WIRE BLU WIRE BRN WIRE CANADA USA COMBINATION METER ASSEMBLY COMPUTER DATA INIT LINES SYSTEM COMPUTER DATA LINES SYSTEM D/L ALTB FUSE ECU- IG 1 FUSE ECU-ACC FUSE ECU-B 1 FUSE ECU-IG 1 3 FUSE ENGINE ROOM R/B ASSEMBLY FUSE GAUGE 2 FUSE GRN WIRE GRY WIRE HEAD HEAD CANL CANH COMPUTER DATA LINES SYSTEM HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT SWIVEL ECU ASSEMBLY (LEFT END W/ DISPLAY W/O DISPLAY OF DASH) HID TYPE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INNER REAR VIEW MIRROR ASSEMBLY INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT HEADLIGHT ASSEMBLY LH E LH- RH- SML LH+ LHM+ LIGHT CONTROL SWITCH LIN LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) OFF DRL OFF ORG/ WIRE PNK WIRE RED WIRE RH E RHM + RIGHT HEADLIGHT ASSEMBLY RIGHT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY (AT RIGHT REAR SUSPENSION) SHB SHFL SBR SHRL SHG SHRR SMBL SMBR SMGL SMGL SMGR SMGR SML SMR SMR RH+ CANH CANL IGS IG SUSPENSION CONTROL ECU (RIGHT SIDE OF DASH) VIO WIRE W/ AIR SUSPENSION W/O AIR SUSPENSION WHT WIRE WHT/BLK WIRE YEL WIRE

AIR BAG SENSOR ASSEMBLY BACK DOOR CONTROL SWITCH BACK DOOR OPENER SWITCH ASSEMBLY BLK WIRE BRN WIRE CENTER STOP LIGHT ASSEMBLY COMBINATION METER ASSEMBLY FRONT POWER POINT SOCKET ASSEMBLY ID CODE BOX INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) J/C LEFT ELECTRICAL KEY ANTENNA LEFT FRONT DOOR W/ MOTOR LOCK ASSEMBLY LEFT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LEFT REAR LIGHT ASSEMBLY MAIN BODY ECU MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY NCA WIRE OPTION CONNECTOR (GLASS BREAKAGE SENSOR ECU ASSEMBLY) POWER MANAGEMENT CONTROL ECU POWER SLIDE BACK DOOR WARNING BUZZER REAR WINDOW DEFOGGER REAR WIPER, MOTOR, BRACKET ASSEMBLY RIGHT REAR LIGHT ASSEMBLY SPIRAL CABLE SUB-ASSEMBLY TRANSMISSION CONTROL SWITCH TURN SIGNAL SEAT FLASHER HEATER POWER ASSEMBLY SWITCH SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YAW RATE SENSOR ASSEMBLY

BRN WIRE CERTIFICATION ECU ASSEMBLY CLEARANCE WARNING ECU ASSEMBLY COMBINATION METER ASSEMBLY CRANK POSITION SENSOR SHIELD FROM FUEL LID OPENER SWITCH GLOVE REMOTE BOX OPERATION LIGHT ASSEMBLY SWITCH HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT DIMMER SWITCH ASSEMBLY POWER TILT MOTOR HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) HEIGHT CONTROL OFF SWITCH INTAKE MASS AIR FLOW METER SUB-ASSEMBLY SHIELD KNOCK CONTROL SENSOR (BANK 1, 2) SHIELD MAIN SWITCH ASSEMBLY MULTI DCM INFORMATION (TELEMATICS DISPLAY TRANSCEIVER) ASSEMBLY NCA WIRE OPTION CONNECTOR (REMOTE ENGINE STARTER) ORG/ WIRE OVERHEAD MODULE OXYGEN SENSOR (BANK 1 SENSOR 1) SHIELD OXYGEN SENSOR (BANK 1 SENSOR 2) SHIELD OXYGEN SENSOR (BANK 2 SENSOR 1) SHIELD OXYGEN SENSOR (BANK 2 SENSOR 2) SHIELD PARKING DOOR ASSIST CONTROL ECU SWITCH ASSEMBLY A/C AMPLIFIER ASSEMBLY POWER BACK DOOR MAIN SWITCH METER LIGHT MIRROR CONTROL SUB- RHEOSTAT ASSEMBLY RIGHT LEFT VISOR VISOR ASSEMBLY ASSEMBLY SATELLITE SWITCH SET SHIFT LOCK CONTROL ECU SUB-ASSEMBLY STEERING MAIN LOCK BODY ACTUATOR ECU ASSEMBLY STEERING SENSOR SUSPENSION CONTROL SWITCH THROTTLE W/ MOTOR BODY ASSEMBLY SHIELD TIRE PRESSURE WARNING RESET SWITCH VSC OFF SWITCH WATER TEMPERATURE SWITCH WHT WIRE WHT/BLK WIRE

BI-XENON FUSE BI-XENON RELAY (HID TYPE) BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY CONTROL DC/DC FUSE DRL RELAY ENGINE ROOM J/B ASSEMBLY (LEFT SIDE OF ENGINE COMPT) EXCEPT HID TYPE HID TYPE EXCEPT LED LED TYPE TYPE FUSE GRN WIRE GRY WIRE H-LP LH HI FUSE H-LP LH LO FUSE H-LP RH HI FUSE H-LP RH LO HALOGEN TYPE HEAD RELAY (LL) HEAD RELAY (RL) HID LED TYPE TYPE HID TYPE HOT AT ALL TIMES LED EXCEPT TYPE LED TYPE LEFT HEADLIGHT ASSEMBLY LEFT HEADLIGHT ASSEMBLY (LED TYPE) LIGHT LIGHT CONTROL LOW (HID) LT GRN WIRE PNK COMPUTER DATA LINES SYSTEM WIRE RED WIRE RIGHT HEADLIGHT ASSEMBLY RIGHT HEADLIGHT ASSEMBLY (HID TYPE) RIGHT HEADLIGHT ASSEMBLY (LED TYPE) WHT/BLK WIRE YEL WIRE

+S SI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IG 64 15 56 54 PNK WIRE BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CS CHK DCM (TELEMATICS TRANSCEIVER) DOWN ENGINE CONTROLS SYSTEM PNK WIRE ENGINE OIL PRESSURE SWITCH ASSEMBLY (LOWER LEFT FRONT OF ENGINE) ENTER FR FE TX+ FUEL PUMP, FUEL SENDER (TOP OF FUEL TANK) GAUGE 2 FUSE GRN WIRE GRY WIRE HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEVEL WARNING SWITCH ASSEMBLY LT BLU WIRE LT GRN WIRE LUGGAGE COMPT) MENU MSSL ET ES RHUP RHDW A/B NAVIGATION RECEIVER ASSEMBLY ORG/ WIRE P/SB PBLT PNK CANH CANL WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RADIO RECEIVER ASSEMBLY RED WIRE RIGHT STEERING PAD SWITCH SEATS SYSTEM SKID CONTROL ECU ASSEMBLY (RIGHT SIDE OF DASH) SOUND SYSTEMS SPDI SPDP SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STEREO COMPONENT AMPLIFIER ASSEMBLY VIO WIRE W/ NAVIGATION W/O NAVIGATION WATER TEMPERATURE SWITCH (UNDER FRONT CENTER OF VEHICLE) WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

ADIM BLK WIRE BLU WIRE BRN WIRE CERTIFICATION ECU ASSEMBLY (RIGHT SIDE OF DASH) COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CANH CANL DCM (TELEMATICS TRANSCEIVER) (UNDER CENTER CONSOLE) DOWN ENGINE SWITCH FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY FUEL LID OPENER GRN WIRE GRY WIRE HEADLIGHT CLEANER SWITCH ASSEMBLY LIGHT CONTROL RHEOSTAT LT GRN WIRE MAIN SWITCH ASSEMBLY MASTER SWITCH ASSEMBLY MULTIPLEX NETWORK ODO TRIP ORG/ WIRE PNK WIRE RADIO RECEIVER ASSEMBLY RED WIRE SATELLITE SWITCH SET SEAT HEATER SHIFT POSITION INDICATOR 2 1 ILL- ILL+ SUSPENSION CONTROL SWITCH SUSPENSION CONTROL SWITCH 2 SWG SWIL SWITCH VIO WIRE VSC OFF SWITCH W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY TAIL YEL WIRE

-TW ADAPTER ASSEMBLY 1 STEREO JACK AGND ALI ALO ARI ARO ASGN AUXI AUXO BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY CONSOLE) GRN WIRE GRY WIRE LEFT QUARTER SIDE SPEAKER ASSEMBLY (W/ 15 SPEAKER) LEFT REAR SPEAKER ASSEMBLY LEFT REAR SPEAKER ASSEMBLY 2 LT BLU WIRE LT GRN WIRE MI+ MO- NCA WIRE NTSC PBLT PNK WIRE RADIO RECEIVER ASSEMBLY RED WIRE REMOTE OPERATION SWITCH RIGHT QUARTER SIDE SPEAKER ASSEMBLY (W/ 15 SPEAKER) RIGHT REAR SPEAKER ASSEMBLY RIGHT REAR SPEAKER ASSEMBLY 2 SLD SLDI SLDO STEREO JACK ADAPTER ASSEMBLY 1 (MULTI-MEDIA INTERFACE ECU) UNDER CENTER FLOOR VIO WIRE W/ MULTI-MEDIA INTERFACE ECU W/O MULTI-MEDIA INTERFACE ECU WHT WIRE WHT/BLK WIRE WUI WUO YEL WIRE

AGND ANTENNA COIL BLK WIRE BLU WIRE BRN WIRE BTH+ BTH- CODE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 1 FUSE ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM ENGINE CONTROLS SYSTEM ENGINE ROOM J/B ASSEMBLY (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES IMMOBI FUSE IMO IMI CCS PNK WIRE INDS INDS INDW INDW LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PNK CANH CANL WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) POWER SWITCH PSOK RED WIRE S-HORN FUSE S-HORN RELAY SECURITY HORN ASSEMBLY (LEFT FRONT OF ENGINE COMPT) SFTD SFTU SHIFT INTERLOCK SYSTEM SL/R SLP SMRG SMRP SMRB SPDI SWIL THB ABFS ETHB TRANSMISSIONS SYSTEM TXCT VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 4 5 GND RSSI +5 DATA 15 5 16 RDA RCO RSSI 37 13 38 14 OPN DWN CLS UP GND 9 10 CANH CANL BLK WIRE BLU WIRE BRN WIRE BZR CANL CANH CERTIFICATION ECU ASSEMBLY COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOOR CONTROL RECEIVER (RIGHT "C" PILLAR) FUSE GAUGE 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) KEY LOCK KEY UNLOCK LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (AT LEFT "B" PILLAR) LEFT FRONT DOOR W/ MOTOR LOCK ASSEMBLY LIN IG LT BLU WIRE LT GRN WIRE M- M+ MAIN BODY ECU INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) OPN DWN CLS UP OVERHEAD MODULE PNK 1 2 3 4 5 6 7 8 9 10 WIRE PNK CANL WIRE PNK IG WIRE RED WIRE S/ROOF FUSE SLIDING ROOF CONTROL ECU (CENTER FRONT OF ROOF) WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (LEFT SIDE OF ENGINE COMPT) YEL WIRE

-TW ADAPTER ASSEMBLY 1 STEREO JACK AGND ALI ALO ARI ARO ASGN AUXI AUXO BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY CONSOLE) GRN WIRE GRY WIRE LEFT QUARTER SIDE SPEAKER ASSEMBLY (W/ 15 SPEAKER) LEFT REAR SPEAKER ASSEMBLY LEFT REAR SPEAKER ASSEMBLY 2 LT BLU WIRE LT GRN WIRE MI+ MO- NCA WIRE NTSC PBLT PNK WIRE RADIO RECEIVER ASSEMBLY RED WIRE REMOTE OPERATION SWITCH RIGHT QUARTER SIDE SPEAKER ASSEMBLY (W/ 15 SPEAKER) RIGHT REAR SPEAKER ASSEMBLY RIGHT REAR SPEAKER ASSEMBLY 2 SLD SLDI SLDO STEREO JACK ADAPTER ASSEMBLY 1 (MULTI-MEDIA INTERFACE ECU) UNDER CENTER FLOOR VIO WIRE W/ MULTI-MEDIA INTERFACE ECU W/O MULTI-MEDIA INTERFACE ECU WHT WIRE WHT/BLK WIRE WUI WUO YEL WIRE