Lexus RX II facelift (2006-2009) micro computer Wiring diagrams

ALT FUSE ALT-S FUSE BATTERY BLK WIRE BLU WIRE CHARGE INDICATOR COMBINATION METER POWER SUPPLY CIRCUIT COMPUTER DATA LINES FUSIBLE LINK BLOCK (IN ENGINE ROOM R/B) GAUGE 1 FUSE GAUGE 2 FUSE GENERATOR GRN WIRE GRY WIRE HOT IN ON OR START IK (BEHIND TOP LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 16 (BEHIND RIGHT SIDE MAIN FUSIBLE LINK MICRO COMPUTER OF DASH) ORG/ WIRE PNK WIRE RED WIRE STARTING CIRCUIT SYSTEM WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 TRQV RZV RZCS RZSN 1 2 3 4 5 CBP 1 2 VOUT 3 4 1 2 RZV RZSC RZSN RZG BA (RIGHT REAR CARGO AREA) BB (CENTER OF REAR SEAT) BEAN IC BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CANH CANL PIG PGND B+ CEP COMBINATION METER COMPUTER DATA LINES SYSTEM DRDD ECU- IG 1 FUSE EU (CENTER REAR OF ENGINE COMPT) EX (LEFT REAR OF ENGINE COMPT) EZ (LEFT FRONT OF ENGINE COMPT) FUSE FUSIBLE LINK BLOCK (LEFT SIDE OF ENGINE COMPT) GAUGE 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IG SIL DRDD IK (TOP LEFT SIDE OF DASH) INCS OUSN OUCS INSN INCS OUSN OUCS INSTRUMENT PANEL J/B (LEFT SIDE J/C 18, 19 (RIGHT SIDE OF DASH) J/C 35 (LEFT REAR CARGO AREA) MICRO COMPUTER NCA WIRE OF DASH) POWER STEERING CONVERTER (LEFT REAR OF CARGO AREA) POWER STEERING ECU POWER STEERING MOTOR (ON STEERING GEAR) POWER STEERING TORQUE SENSOR (ON STEERING GEAR ASSEMBLY) POWER SUPPLY CIRCUIT DRIVE IC PS IND RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE ROTATION ANGLE SENSOR (ON STEERING GEAR ASSEMBLY) RZG SRZG SYSTEM MAIN RELAY (CENTER OF REAR SEAT CUSHION) TRQV INSN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

+B(DOME) 3 1 2 RH+ LH+ ACCESS MODE LO (BEHIND LEFT KICK PANEL) AIR SUS RELAY AIRSUS FUSE BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BT (BEHIND RIGHT SIDE OF REAR BUMPER) COMBINATION METER CONTROL SOLENOID VALVE DOME FUSE ECU- IG 1 FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) EXHAUST SOLENOID VALVE FUSIBLE LINK BLOCK (IN ENGINE ROOM R/B) GRN WIRE GRY WIRE HEIGHT CONTROL COMPRESSOR ASSEMBLY HEIGHT CONTROL OFF SWITCH HIGH CONTROL COMPRESSOR MOTOR HOT AT ALL TIMES HOT IN ON OR START IK (BEHIND TOP LEFT SIDE OF DASH) IM (BEHIND RIGHT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) AIRSUS FUSE J/B 3 (BEHIND LEFT SIDE OF DASH) J/B 4 (BEHIND RIGHT SIDE OF DASH) J/C 37 (AT REAR CARGO AREA) J/C 6 (BEHIND LEFT SIDE OF DASH) J/C 7 (BEHIND LEFT SIDE OF DASH) LT GRN WIRE MICRO COMPUTER OFF HI POWER SUPPLY CIRCUIT ORG/ WIRE RED WIRE TACH TACHOMETER VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

11 8 5 DRL HRLY 15 22 2 7 IG 3 5 6 CLTE CLTS CLTB 4 5 6 22 15 16 23 17 CLTE CLTS CLTB FFOG HF 6 26 14 4 ALTB BECU AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER LEFT SIDE OF DASH) BATB TAIL BEAN IC BLK WIRE BLU WIRE BODY ECU (BEHIND LEFT SIDE OF DASH) BRN WIRE COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DIMMER SWITCH DOME FUSE DOOR 1 FUSE DOOR 2 FUSE DRIVE IC ECU- IG 1 FUSE ECU-ACC FUSE ECU-B 1 FUSE FOG LIGHT SWITCH FR FOG FUSE FR FOG RELAY FRONT FOG LAMP FUSIBLE LINK BLOCK GRN WIRE GRY WIRE HEAD HEAD TAIL HEAD- LAMP HIGH BEAM IND HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START HOT W/ TAIL RELAY ENERGIZED II (AT LEFT KICK PANEL) IK (TOP LEFT SIDE OF DASH) IND INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) J/B 3 (LEFT SIDE OF DASH) J/C 2 (IN RIGHT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) J/C 5 (LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) LEFT FRONT FOG LIGHT LIGHT CONTROL SWITCH LT GRN WIRE MICRO COMPUTER ORG/ WIRE PARKING BRAKE SWITCH (LEFT END OF DASH) PNK 1 2 WIRE PNK PNK WIRE PNK WIRE RIGHT FRONT FOG LIGHT TAIL FUSE TAIL HEAD AUTO OFF TAIL OFF AUTO USA VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B(DOME) +B(DOME) MASTER WARNING IND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 16 17 18 19 20 21 22 23 24 25 26 GND BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BUZZER COMBINATION METER DOME FUSE DRIVE IC ECU-IG 2 FUSE FUSIBLE LINK BLOCK (LEFT SIDE OF ENGINE COMPT) GAUGE 2 FUSE GRN WIRE GRY WIRE HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND LEFT END OF DASH) HEADLIGHTS CIRCUIT HOT AT ALL TIMES HOT IN ON OR START IK (TOP LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) J/B 3 (LEFT SIDE OF DASH) J/C 7, 8 (BEHIND LEFT SIDE OF DASH) J/C 9 (BEHIND LEFT SIDE OF DASH) LCD (MULTI DISPLAY) LEFT HEADLIGHT LEFT HEADLIGHT BEAM LEVEL CONTROL MOTOR LT GRN WIRE MICRO COMPUTER ORG/ WIRE PNK IG WIRE PNK SPDL SPDR HDLP WIRE PNK WIRE POWER SUPPLY RED WIRE RHG RIGHT HEADLIGHT BEAM LEVEL CONTROL MOTOR RIGHT HEADLIGHT RIGHT REAR HEIGHT CONTROL SENSOR (AT RIGHT REAR SUSPENSION) RLO RRO SBR WNG LHG SGR SHB SHG SHR SHRR SKID CONTROL ECU W/ ACTUATOR (RIGHT SIDE OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B(DOME) +B(DOME) ILLUMINATION (RING) ABS IND. AFS OFF IND BEAN BLK WIRE BLU WIRE BRAKE CONTROL IND BRAKE IND BRN WIRE BUZZER CHARGE IND COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DOME FUSE DOOR IND MASTER DRIVER IC DRIVER'S SEAT BELT IND ECU-B 1 FUSE ENGINE CONTROLS SYSTEM COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM SOUND SYSTEMS HEADLIGHTS SYSTEM FRONT FOG IND FUEL FUEL IND FUEL SENDER (MAIN) (ON TOP OF FUEL TANK) FUSIBLE LINK BLOCK GRY WIRE HEAD (USA) TAIL (EXCEPT IND USA) HIGH BEAM IND HOT AT ALL TIMES HOT IN ON OR START II (AT LEFT KICK PANEL) ILLUMINATION (MULTI DISPLAY) ILLUMINATION IND (DIAL LCD) ILLUMINATION IND (POINTER) INSTRUMENT GAUGE 2 FUSE PANEL J/B (LEFT SIDE OF DASH) J/B 3 (LEFT SIDE OF DASH) LCD (MULTI DISPLAY) LEFT TURN IND LT BLU WIRE LT GRN WIRE MAIN BATTERY IND MALFUNCTION IND MICRO COMPUTER NAVIGATION SYSTEM ORG/ WIRE PNK EXTERIOR LIGHTS SYSTEM WIRE PNK WIRE POWER METER POWER SUPPLY CIRCUIT PS IND READY IND RED WIRE RHEOSTAT RHEOSTAT TRIP SWITCH RIGHT TURN IND SLIP IND SPEEDOMETER SRS IND SW ODO/TRIP TCAN SW TEMPERATURE TIRE PRESSURE IND TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WARNING IND WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM YEL WIRE

1 2 3 4 5 6 7 8 9 10 PNK WIRE 1 2 3 4 5 6 B+ GND B+ 1 3 2 4 PNK WIRE ANTI-LOCK BRAKES SYSTEM BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CENTER SPEAKER COMBINATION METER GAUGE 2 FUSE GRN WIRE GRY WIRE HOT IN ON OR START IK (TOP LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT FRONT SQUAWKER LEFT FRONT WOOFER LEFT REAR DOOR SPEAKER LEFT TWEETER LT BLU WIRE LT GRN WIRE MICRO COMPUTER NCA WIRE PNK WIRE POWER SUPPLY RED WIRE RED/YEL WIRE RIGHT FRONT WOOFER RIGHT REAR DOOR SPEAKER SPD PNK WIRE SPEEDOMETER STEREO COMPONENT AMPLIFIER (CENTER REAR OF VEHICLE) TWL+ TWL- VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 WFL+ WFR+ PNK WIRE 1 2 3 4 5 6 B+ GND B+ 1 3 2 4 PNK WIRE ANTI-LOCK BRAKES SYSTEM BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE COMBINATION METER FL+ RL+ RR+ FL- FR- FR+ RL- RR- PNK WIRE GAUGE 2 FUSE GRN WIRE GRY WIRE HOT IN ON OR START IK (TOP LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT FRONT SQUAWKER LEFT FRONT WOOFER LEFT REAR DOOR SPEAKER LEFT TWEETER LT BLU WIRE LT GRN WIRE MICRO COMPUTER NCA WIRE PNK WIRE POWER SUPPLY RED WIRE RED/YEL WIRE RIGHT FRONT WOOFER RIGHT REAR DOOR SPEAKER SPD PNK WIRE SPEEDOMETER STEREO COMPONENT AMPLIFIER (CENTER REAR OF VEHICLE) TWL+ TWL- VIO WIRE WFL- WFR- WHT WIRE WHT/BLK WIRE YEL WIRE

+SR P+ P- SIL D- D+ +SL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 P-AB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 FSR+ FSR- ABFS AIR BAG SENSOR ASSEMBLY (BELOW CENTER CONSOLE) BLK WIRE BLU WIRE BRN WIRE CENTER CLUSTER INTEGRATION PANEL COMBINATION METER COMPUTER DATA LINES SYSTEM CSR- SFR+ SFR- ICR- ICR+ PR+ PR- CURTAIN SHIELD AIR BAG SQUIB (LEFT) (LEFT REAR OF VEHICLE) DRIVE IC ESR SSR+ VUPR CSR+ VUCR ESCR GAUGE 2 FUSE GRN WIRE GRY WIRE GSW HOT IN ON OR START IC BEAN IGN FUSE II (AT LEFT KICK PANEL) IK (TOP LEFT SIDE OF DASH) INSTRUMENT BODY ECU PANEL J/B (LEFT SIDE OF DASH) GSW INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) KNEE AIR BAG SQUIB MICRO COMPUTER MULTI DISPLAY 15 14 ARON AIR PAON -SL PAON P-AB POWER SUPPLY CIRCUIT PRETENSIONER (LEFT) (IN BASE OF LEFT "B" PILLAR) RED WIRE SIDE AIR BAG SENSOR (LEFT FRONT) (AT LEFT "B" PILLAR) SIDE AIR BAG SENSOR (LEFT REAR) (AT BASE OF LEFT "C" PILLAR) SIDE AIR BAG SQUIB (LEFT) (IN DRIVER'S SEAT BACK) SR- SRS IND SSR+ VIO WIRE W/ LEXUS NAVIGATION SYSTEM W/O LEXUS NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

A/T OIL TEMP IND BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM COUNTER GEAR SPEED SENSOR (ON TRANSAXLE) DRIVER IC ECT SNOW IND ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) FUEL PUMP RELAY GRN WIRE GRN/RED WIRE GRY WIRE J/B 3 (BEHIND LEFT SIDE OF DASH) J/C 20, 21 (BEHIND RIGHT SIDE OF DASH) LCD (SHIFT RANGE POSITION) LT BLU WIRE LT GRN WIRE MALFUNCTION IND MICRO COMPUTER MULTI-MODE SHIFT LEVER TYPE EXCEPT MULTI-MODE SHIFT LEVER TYPE P/N PARK/NEUTRAL POSITION SWITCH (ON TRANSAXLE) PNK 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 WIRE PNK WIRE POWER SUPPLY CIRCUIT RED WIRE SHIFT INTERLOCK SHIFT INTERLOCK SYSTEM SPEEDOMETER SYSTEM TACHOMETER TURBINE SPEED SENSOR (ON TRANSAXLE HOUSING) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE