Lexus RX III (2008-2012) ecu-acc fuse 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

1 2 3 4 TTRS TTLS TTLA 1 2 3 5 6 TSL TSR CLTE CLTS CLTB 17 9 10 3 HZSW CANP CANN 19 6 28 29 30 20 21 22 13 14 3 BCTY RCTY ALT ROOM J/B FUSE ASSEMBLY (LEFT FRONT FENDER APRON) AUTOMATIC LIGHT CONTROL SENSOR (TOP CENTER OF DASH) BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE CENTER STOP LIGHT ASSEMBLY COMPUTER DATA LINES SYSTEM CTRS D/L ALTB FUSE ECU-ACC FUSE ECU-IGI 1 FUSE ENGINE GRN WIRE GRY WIRE HEAD TAIL CLTB CLTS CLTE CANL CANH HAZ HMSL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B ASSEMBLY (LEFT SIDE OF DASH) LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT OUTER REAR VIEW MIRROR ASSEMBLY LEFT QUARTERPANEL) LEFT REAR COMBINATION LIGHT ASSEMBLY LEFT REAR LIGHT ASSEMBLY LEFT REAR RIGHT REAR SIDE MARKER SIDE MARKER LIGHT LIGHT ASSEMBLY ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) NCA WIRE NOISE FILTER (CENTER STOP LIGHT ASSEMBLY) (CENTER REAR OF ROOF) ORG/ WIRE RED WIRE RIGHT LICENSE PLATE LIGHT ASSEMBLY RIGHT REAR COMBINATION LIGHT ASSEMBLY RIGHT REAR LIGHT ASSEMBLY STP+ TAIL TAIL FUSE TAIL RELAY TOWING CONVERTER (RIGHT SIDE OF CARGO AREA) TRAILER HITCH TRN+ TRNI TRNR TURN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

2 17 3 LSWR HZSW 21 20 BZR HCTY 4 2 5 FRCY FLCY LSWL SH ACTG BACK DOOR LOCK ASSEMBLY (W/O POWER BACK DOOR) (LOWER CENTER OF BACK DOOR) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM D DR UNLOCK RELAY D/L ALTB FUSE D/L SOURCE RELAY DETECTION DOOR LOCK RELAY DR UNLOCK RELAY ECU-ACC FUSE ECU-IGI 1 FUSE GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN HORNS SYSTEM HOT AT ALL TIMES HOT W/ IND INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) KEY LCTY LEFT FRONT DOOR LOCK MOTOR (IN DRIVER'S DOOR) LOCK KEY LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) ORG/ WIRE PNK LSFL BCTY RCTY HAZ CANL CANH WIRE PNK WIRE RED WIRE RIGHT REAR DOOR COURTESY LIGHT SWITCH (AT RIGHT REAR "C" PILLAR) RIGHT REAR DOOR LOCK MOTOR (IN RIGHT REAR DOOR) UNLOCK VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

14 13 TRLY FFGO 15 25 HRLY DRL 2 4 11 FLCY FRCY 6 5 3 2 1 CLTB CLTS CLTE 8 5 30 28 29 27 22 21 20 HF HU TAIL 9 10 8 21 CANP CANN RLEW LLEW COMPUTER DATA LINES SYSTEM AIR CONDITIONING TSR TSL SYSTEM AUTO TAIL OFF AUTOMATIC LIGHT CONTROL SENSOR (IF EQUIPPED) (TOP RIGHT SIDE OF DASH) BLK WIRE BLU WIRE BRN WIRE CANADA USA D/L ALTB FUSE DIMMER SWITCH ECU-ACC FUSE ECU-B 1 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FOG LIGHT SWITCH FR FOG FUSE FR FOG RELAY FUSE GAUGE 2 FUSE GRN WIRE GRY WIRE HEAD HEAD FFOG CLTE CLTS CLTB PNK WIRE HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LCTY INTERIOR LIGHTS 6 19 SYSTEM RCTY BCTY LEFT FOG LIGHT ASSEMBLY LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) ORG/ WIRE PARKING BRAKE SWITCH PD FUSE PNK WIRE RED WIRE RIGHT FOG LIGHT ASSEMBLY TAIL AUTO HEAD OFF DRL OFF DRL OFF TAIL FUSE TAIL RELAY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

"B" PILLAR) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IG 6 5 20 CANP CANN FUL COMPUTER DATA LINES SYSTEM 8 7 CTY BACK DOOR LOCK ASSEMBLY BACK DOOR LOCK ASSEMBLY (W/O POWER BACK DOOR) (LOWER CENTER OF BACK DOOR) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-B 1 FUSE ENGINE HOOD COURTESY SWITCH (CENTER FRONT OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) ES TX- GAUGE 1 FUSE GRN WIRE GRY WIRE HDD PNK WIRE HDU HOT AT ALL TIMES HOT IN ON OR START HUD ILD ILU ILU ILD HUDO HUDU HUDD INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) MAIN BODY ECU LCTY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (AT LEFT LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (AT LEFT REAR "C" PILLAR) LT BLU WIRE LT GRN WIRE METER MIRROR SUB-ASSEMBLY (LEFT SIDE OF DASH) ORG/ WIRE PARKING BRAKE SWITCH ASSEMBLY (LEFT END OF DASH) PNK WIRE POWER BACK DOOR UNIT ASSEMBLY (IF EQUIPPED) (LEFT REAR OF ROOF) RCTY RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (AT RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (AT RIGHT REAR "C" PILLAR) SATELLITE SWITCH SET VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CANH CANL SWG COMPUTER DATA LINES SYSTEM CB+ COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM TX+ TX- PNK WIRE CV+ ECU-ACC FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GAUGE 1 FUSE GPS ANTENNA GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IEEE IEEE CONNECTOR (UNDER CENTER CONSOLE) IG MACC MIN+ MIN- SGND INSTRUMENT PANEL J/B LT BLU WIRE LT GRN WIRE MACC MCI- MCO- MCVD MUTE NAVIGATION RECEIVER ASSEMBLY NCA WIRE NTSO V+ CA+ ORG/ WIRE OVERHEAD MODULE PARKING BRAKE SWITCH ASSEMBLY (LEFT END OF DASH) PKB SPD INSTRUMENT CLUSTER SYSTEM PNK WIRE RAD 1 FUSE RAD 3 FUSE REAR TELEVISION CAMERA ASSEMBLY (LOWER CENTER OF BACK DOOR) RED WIRE SGND SPI+ SPO- TELEPHONE MICROPHONE ASSEMBLY USB USBG USBV V- CGND VIO WIRE VOR- VOT+ VV+ NTSF VMTF VV- W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 IG 1 2 4 17 5 7 ACCD AIR SUS FUSE ALT B BK/DR LOCK RELAY BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM D/L ALT B FUSE D/L SOURCE RELAY DR LOCK ECU-ACC FUSE ELECTRONIC SUSPENSION SYSTEM ENGINE SWITCH F/L DOOR FUSE F/R DOOR FUSE FR FOG FUSE FR FOG RELAY FROM FUEL OPN FUSE FUSE GRN WIRE GRY WIRE INTERIOR LIGHTS, MIRRORS, MEMORY, POWER WINDOWS SYSTEMS INVERTER FUSE INVERTER RELAY (LEFT 'C' PILLAR) LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU MAIN SWITCH ASSEMBLY MEMORY SYSTEMS OBD FUSE ORG/ WIRE P-SEAT LH TI, TE FUSE FUSE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) POWER OUTLET SOCKET ASSEMBLY POWER TOPS SYSTEM POWER WINDOWS SYSTEM PSB P-SEAT RH FUSE FUSE R/R DOOR FUSE RED WIRE RELAY (DIAGRAM 3 OF 4) RL DOOR S/ROOF FUSE SEATS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VOLTAGE INVERTER (LEFT SIDE OF CARGO AREA) WHT/BLK WIRE YEL WIRE

2 17 3 LSWR HZSW 21 20 BZR HCTY 4 2 5 FRCY FLCY LSWL SH ACTG BACK DOOR LOCK ASSEMBLY (W/O POWER BACK DOOR) (LOWER CENTER OF BACK DOOR) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM D DR UNLOCK RELAY D/L ALTB FUSE D/L SOURCE RELAY DETECTION DOOR LOCK RELAY DR UNLOCK RELAY ECU-ACC FUSE ECU-IGI 1 FUSE GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN HORNS SYSTEM HOT AT ALL TIMES HOT W/ IND INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) KEY LCTY LEFT FRONT DOOR LOCK MOTOR (IN DRIVER'S DOOR) LOCK KEY LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) ORG/ WIRE PNK LSFL BCTY RCTY HAZ CANL CANH WIRE PNK WIRE RED WIRE RIGHT REAR DOOR COURTESY LIGHT SWITCH (AT RIGHT REAR "C" PILLAR) RIGHT REAR DOOR LOCK MOTOR (IN RIGHT REAR DOOR) UNLOCK VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CANH CANL SWG COMPUTER DATA LINES SYSTEM CB+ COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM TX+ TX- PNK WIRE CV+ ECU-ACC FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GAUGE 1 FUSE GPS ANTENNA GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IEEE IEEE CONNECTOR (UNDER CENTER CONSOLE) IG MACC MIN+ MIN- SGND INSTRUMENT PANEL J/B LT BLU WIRE LT GRN WIRE MACC MCI- MCO- MCVD MUTE NAVIGATION RECEIVER ASSEMBLY NCA WIRE NTSO V+ CA+ ORG/ WIRE OVERHEAD MODULE PARKING BRAKE SWITCH ASSEMBLY (LEFT END OF DASH) PKB SPD INSTRUMENT CLUSTER SYSTEM PNK WIRE RAD 1 FUSE RAD 3 FUSE REAR TELEVISION CAMERA ASSEMBLY (LOWER CENTER OF BACK DOOR) RED WIRE SGND SPI+ SPO- TELEPHONE MICROPHONE ASSEMBLY USB USBG USBV V- CGND VIO WIRE VOR- VOT+ VV+ NTSF VMTF VV- W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 CSLD CDR+ CDR- CDL+ CDL- MUTE GND AGND AUXO ASGN ARO ALO ARI ASGN ALI AGND AUXI ADIM ATX- BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GAUGE 1 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B LT BLU WIRE LT GRN WIRE MIN+ MACC MIN- SGND MULTI-MEDIA INTERFACE ECU (IF EQUIPPED) (UNDER REAR OF CENTER CONSOLE) MUTE R+ L+ SLD NCA WIRE ORG/ WIRE PNK ATX- WIRE PNK TX+ TX- IVO+ IVO- WIRE PNK WIRE R- L- GND RAD 3 FUSE RADIO 2 FUSE RADIO RECEIVER ASSEMBLY RED WIRE STEREO JACK ADAPTER ASSEMBLY 1 STEREO JACK ADAPTER ASSEMBLY 1 (MULTI-MEDIA INTERFACE ECU) SWG TXM- TXM+ ULO+ URO+ USDI VIO WIRE W/ MULTI-MEDIA INTERFACE ECU W/O MULTI-MEDIA INTERFACE ECU WHT WIRE YEL WIRE