Lexus RX III facelift (2012-2015) overhead module Wiring diagrams

+ECU 26 25 DMON DMDR 3 1 FRCL ILE 31 32 29 ALTB IG 4 11 FRCY 4 6 LCYL DOMR BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CSPT CTY D/L ALT B FUSE DOME FUSE DOME RELAY ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FLCL FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ECU- B 1 FUSE HOT W/ ACC 1 RELAY ENERGIZED ILLB ILLB RGND LCTY LEFT FRONT COURTESY LIGHT ASSEMBLY LEFT FRONT DOOR COURTESY LIGHT SWITCH (AT LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (AT LEFT REAR "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) ORG/ WIRE OVERHEAD MODULE PNK 1 2 WIRE PNK WIRE R/B 1 RCTY RCYL RED WIRE RELAY ENERGIZED RIGHT FRONT COURTESY LIGHT ASSEMBLY RIGHT FRONT DOOR COURTESY LIGHT SWITCH (AT RIGHT "B" PILLAR) RIGHT REAR COURTESY LIGHT ASSEMBLY RIGHT REAR DOOR COURTESY LIGHT SWITCH (AT RIGHT REAR "C" PILLAR) RRMP LILL RGND SHFT DOOR CILL SPORT LIGHT ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 IG 6 5 PNK PNK WIRE BLK WIRE BLU WIRE CGND CB+ NAVIGATION SYSTEM ECI+ FUSE GARAGE DOOR OPENER GRN WIRE GRY WIRE HOT AT ALL TIMES ENGINE ROOM R/B ASSEMBLY FUSE (ON LEFT SIDE OF ENGINE COMPT) INNER REARVIEW MIRROR ASSEMBLY INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT FRONT DOOR) ECI+ EC- EC+ LEFT OUTER REARVIEW MIRROR ASSEMBLY (ON LEFT FRONT DOOR) LT BLU WIRE NAVIGATION REV EC+ EC- CV- CV+ +B SYSTEM PNK WIRE NAVIGATION SYSTEM NCA WIRE ORG/ WIRE OVERHEAD MODULE PNK IG GND WIRE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT FRONT DOOR) ECI- ECI+ EC- EC+ RIGHT OUTER REARVIEW MIRROR ASSEMBLY (ON RIGHT FRONT DOOR) VIO WIRE WHT WIRE YEL WIRE

23 24 PNK COMPUTER DATA LINES SYSTEM CANH CANL WIRE 4 1 3 SIG ES MPX PNK WIRE 40 26 19 24 IG IG PNK PNK WIRE ACAN AUTO BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY FR WASH FUSE FR WIP FUSE FRONT WASHER SWITCH FRONT WINDSHIELD WASHER MOTOR, PUMP ASSEMBLY (IN WASHER FLUID RESERVOIR) FRONT WIPER SWITCH FUSE GRN WIRE GRY WIRE HEADLIGHT CLEANER CONTROL RELAY (BELOW RIGHT HEADLIGHT ASSEMBLY) HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) J/C LEVEL WARNING SWITCH (IN WASHER FLUID RESERVOIR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MIST OFF ORG/ WIRE OVERHEAD MODULE PNK FRWA WIRE RAIN SENSOR (CENTER FRONT OF ROOF) RED WIRE TAIL VIO WIRE WHT WIRE WHT/BLK WIRE WIG WINDSHIELD WIPER MOTOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

BLK WIRE BRN WIRE GRN WIRE LT BLU WIRE LT GRN WIRE MACC MCI- MCO- MCVD MUTE NCA WIRE OVERHEAD MODULE PNK WIRE RED WIRE SGND SPI+ SPO- TELEPHONE MICROPHONE USB USBG USBV VIO WIRE VOR- VOT+ W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK 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 (AT LEFT "B" PILLAR) LEFT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (IN DRIVER'S DOOR) 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 CANH 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

BLK WIRE BRN WIRE GRN WIRE LT BLU WIRE LT GRN WIRE MACC MCI- MCO- MCVD MUTE NCA WIRE OVERHEAD MODULE PNK WIRE RED WIRE SGND SPI+ SPO- TELEPHONE MICROPHONE USB USBG USBV VIO WIRE VOR- VOT+ W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE

ACAN ADIM BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS GRN WIRE GRY WIRE HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) LEFT STEERING PAD SWITCH LT BLU WIRE LT GRN WIRE MACC MCO- NCA WIRE OFF HOOK ON HOOK OVERHEAD MODULE PNK WIRE REAR WINDOW DEFOGGER SWITCH RED WIRE RIGHT STEERING PAD SWITCH SEEK SEUC SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY TELEPHONE MICROPHONE VIO WIRE VOICE MODE VOLUME- W/ SAFETY CONNECT W/O SAFETY CONNECT WHT WIRE WHT/BLK WIRE YEL WIRE

AGND ALO ARO ASGN AUXO BLK WIRE BLU WIRE BRN WIRE DCM (TELEMATICS TRANSCEIVER) (W/ SAFETY CONNECT) GRN (OR RED) WIRE GRN WIRE GRY WIRE LT GRN WIRE MACC MCI- MCO- MCVD MUTE NCA BLK WIRE NCA WIRE OVERHEAD MODULE PNK (OR BRN) WIRE PNK WIRE RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT FRONT SPEAKER ASSEMBLY 3 SGND SPI+ SPO- STEREO JACK ADAPTER ASSEMBLY 1 TELEPHONE MICROPHONE TWR+ UDO+ UJSG UPI W/ SAFETY CONNECT W/O SAFETY CONNECT WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 IG 26 20 25 PNK IG WIRE BKUP LP FUSE BKUP LP RELAY BLK WIRE BLU WIRE BRN WIRE CB+ CGND CGND CB+ CV+ ECU-B 1 FUSE ENGINE ROOM R/B 2 (LEFT REAR OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE HOT AT ALL TIMES INNER REAR VIEW MIRROR ASSEMBLY J/C LT BLU WIRE NCA WIRE OVERHEAD MODULE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) BL REAR TELEVISION CAMERA ASSEMBLY RED WIRE RELAY ENERGIZED RELAY ENERGIZED INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) ECU REV EC+ EC- CV- CV+ +B PNK MIRRORS SYSTEM WIRE VIO WIRE WHT WIRE YEL WIRE

+B SPI+ SPI- 1 2 3 4 5 6 7 USB USBG VOT+ USBV VOT- VOR- VOR+ 28 13 28 13 FR- FR+ 5 3 4 1 BBO- AIR BAG SENSOR ASSEMBLY (BELOW CENTER CONSOLE) BACKUP BATTERY (MAYDAY BATTERY) (RIGHT SIDE OF DASH) BBI+ BBO- BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DCM (TELEMATICS TRANSCEIVER) (UNDER CENTER CONSOLE) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GPS ANTENNA GRN WIRE GRY WIRE HOT AT ALL TIMES ILL+ GSW SIL SIG- INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT GRN WIRE MACC MAYDAY/TEL FUSE MCO- MIN MUTE MCO+ MCO- NAVIGATION RECEIVER ASSEMBLY (W/ NAVIGATION) NCA WIRE ORG/ WIRE OVERHEAD MODULE PNK 18 12 WIRE PNK WIRE RADIO 2 FUSE RED WIRE RELAY ENERGIZED RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT FRONT SPEAKER ASSEMBLY 3 RRID SGND SGND MCVD MCI+ MCI- SLED SPDP SPO+ SPO- STEREO COMPONENT AMPLIFIER (LUGGAGE COMPT) TELEPHONE ANTENNA TMUT TWR- TWR+ USB USBG USBV VIO WIRE VOR- VOT+ W/ NAVIGATION W/ RADIO, DISPLAY RECEIVER TYPE W/O NAVIGATION W/O RADIO, DISPLAY RECEIVER TYPE WHT WIRE WHT/BLK WIRE YEL WIRE