Lexus UX I (2018-2024) brake booster w/ master cylinder assembly Wiring diagrams

BLK WIRE BLU WIRE BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY CAN (+) CANN CANP ECM (EXCEPT HYBRID) EXCEPT HYBRID GRN WIRE GRY WIRE INVERTER W/ CONVERTER ASSEMBLY LT BLU WIRE LT GRN WIRE NETWORK GATEWAY ECU (RIGHT SIDE OF DASH) ORG/ WIRE PCNH PCNL PNK WIRE REAR HYBRID MOTOR CONTROL INVERTER ASSEMBLY RED WIRE TRANSMISSION CONTROL ECU VIO WIRE WHT WIRE

AA (LEFT SIDE OF ENGINE COMPT) ACCELERATOR PEDAL SENSOR ASSEMBLY BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY BRN WIRE COMPUTER DATA LINES SYSTEM DISTANCE CONTROL SWITCH ECCS EFI 1 FUSE ENGINE ROOM R/B 1 FORWARD RECOGNITION CAMERA FR RR GRN WIRE GRY WIRE HOT AT ALL TIMES IGB INSTRUMENT PANEL J/B ASSEMBLY LEFT FRONT SPEED SENSOR LEFT REAR SPEED SENSOR (LEFT REAR AXLE HUB, BEARING ASSEMBLY) LKSW LT BLU WIRE LT GRN WIRE MAIN MILLIMETER WAVE RADAR SENSOR ASSEMBLY NCA WIRE ORG/ WIRE PNK WIRE PPL/VIO WIRE RED WIRE RELAY ENERGIZED RIGHT FRONT SPEED SENSOR RIGHT REAR SPEED SENSOR (RIGHT REAR AXLE HUB, BEARING ASSEMBLY) RIGHT STEERING PAD SWITCH SGND SPIRAL CABLE SUB-ASSEMBLY STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY THROTTLE BODY W/ MOTOR ASSEMBLY (THROTTLE BODY, LEFT REAR OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE

ANTI-THEFT SYSTEM (IMMOBILIZER CIRCUIT) BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY CLGB ELECTRICAL KEY ANTENNA ENGINE ROOM R/B 1 EXCEPT HYBRID EXCEPT HYBRID HYBRID GRN WIRE GRY WIRE HOT AT ALL TIMES IGE INSTRUMENT PANEL J/B ASSEMBLY LIN LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE REAR INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY 1 RED WIRE RELAY ENERGIZED S-HORN FUSE SECURITY HORN ASSEMBLY STEERING COLUMN) STEERING LOCK ACTUATOR/ UPPER BRACKET ASSEMBLY STRG LOCK FUSE VIO WIRE WHT WIRE WHT/BLK WIRE

2.0L 2.0L HYBRID A/B BACK DOOR LOCK ASSEMBLY W/ COURTESY LIGHT SWITCH BLK WIRE BLU WIRE BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY BRN WIRE CANN CANP CERTIFICATION ECU COMPUTER DATA LINES SYSTEM CTY CTYO DOWN FUL GRN WIRE GRY WIRE LBL LEFT "C" PILLAR) LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LEVEL WARNING SWITCH (BRAKE MASTER CYLINDER RESERVOIR ASSEMBLY) LT BLU WIRE LT GRN WIRE MULTIPLEX NETWORK DOOR ECU NAVIGATION ECU ODO TRIP ORG/ WIRE PNK WIRE PPL PPL/RED WIRE RED WIRE STEREO COMPONENT AMPLIFIER ASSEMBLY TRANSMISSION CONTROL ECU TRIP SWITCH VACUUM WARNING SWITCH ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE

ABS 2 FUSE ABS 3 FUSE ABS MTR 1 FUSE ABS MTR 2 FUSE ABS MTR 3 FUSE ABS- MAIN FUSE ALL DR LOCK RELAY ALT FUSE AMP FUSE BATT- MAIN FUSE BATT-S FUSE BATTERY BATTERY STATE SENSOR ASSEMBLY BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLOWER MOTOR W/ FAN SUB-ASSEMBLY BLU WIRE BRAKE ACTUATOR ASSEMBLY BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY COOLING FAN MOTOR D DR UNLOCK RELAY D INJ FUSE D INJ RELAY D/C CUT FUSE D/L FUSE DEICER FUSE DEICER RELAY DRL FUSE ECU- ACC 2 FUSE ECU-B 4 FUSE ECU-B 5 FUSE EFI MAIN 2 RELAY EFI MAIN RELAY EFI- MAIN 1 FUSE EFI- MAIN 1 RELAY EFI- MAIN 2 FUSE EFI- MAIN 3 FUSE EFI- MAIN 3 RELAY ENGINE ROOM J/B 1 ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) EPB 1 FUSE EPS FUSE FAN 1 FUSE FOG FR FUSE FROM EFI 1 FUSE (DIAGRAM 2 OF 7) FROM ENGINE ROOM R/B 1 (DIAGRAM 2 OF 7) FUEL OPN FUEL OPN FUSE FUEL OPN RELAY FUSIBLE LINK BLOCK ASSEMBLY GENERATOR W/ REGULATOR ASSEMBLY GRN WIRE GRY WIRE H-LP CLN FUSE H-LP CLN RELAY H-LP LH FUSE H-LP LH RELAY H-LP RH FUSE H-LP RH RELAY H-LP SHADE FUSE H-LP SHADE RELAY HORN FUSE HORN RELAY HTR FUSE HYBRID VEHICLE CONTROL ECU IG 3 (WIP FR) RELAY IGCT RELAY IGCT-IG FUSE INSTRUMENT PANEL J/B ASSEMBLY INSTRUMENT PANEL J/B ASSEMBLY (LEFT END OF DASH) INV W/ PMP FUSE INV W/ PMP RELAY J/B 3 ASSEMBLY J/B-AM FUSE J/B-B FUSE L/D-DR UNLOCK RELAY LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU MULTI-DISPLAY MULTIPLEX NETWORK DOOR ECU P-CON RELAY P/OUTLET 2 FUSE P/OUTLET ACC 2 RELAY PBD FUSE PNK WIRE POWER OUTLET SOCKET ASSEMBLY 2 POWER STEERING ECU W/ MOTOR ASSEMBLY R/B 2 R/B 3 ASSEMBLY R/B 4 RADIO RECEIVER ASSEMBLY RED WIRE REMOTE OPERATION CONTROLLER ASSEMBLY S-HORN FUSE S-HORN RELAY ST 1 FUSE ST 1 RELAY STARTER ASSEMBLY STEREO COMPONENT AMPLIFIER ASSEMBLY STRG HTR FUSE TO CERTIFICATION ECU (DIAGRAM 4 OF 7) TO D/C CUT FUSE (DIAGRAM 3 OF 7) TO ENGINE ROOM J/B 1 (DIAGRAM 2 OF 7) TO INSTRUMENT PANEL J/B ASSEMBLY (DIAGRAM 2 OF 7) TO INSTRUMENT PANEL J/B ASSEMBLY (DIAGRAM 3 OF 7) TO INSTRUMENT PANEL J/B ASSEMBLY (DIAGRAM 5 OF 7) TO INSTRUMENT PANEL J/B ASSEMBLY (DIAGRAM 6 OF 7) TO S/HTR-MAIN FUSE (DIAGRAM 2 OF 7) TV 2 FUSE TV FUSE VIO WIRE VVT FUSE WHT WIRE WHT/BLK WIRE WIPER FUSE WIPER RELAY

A/C CONTROL ASSEMBLY ACC RELAY AIR BAG ECU ASSEMBLY ALL DR LOCK RELAY BKUP LP FUSE BKUP LP RELAY BLK WIRE BLK/RED WIRE BLU WIRE BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY CLEARANCE WARNING ECU ASSEMBLY COMBINATION METER ASSEMBLY D DR UNLOCK RELAY D/L FUSE DCM FUSE DIODE (BACKUP) DOME CUT RELAY DOME FUSE DOOR BACK FUSE DOOR BACK RELAY DOOR FUSE DOOR R/L FUSE DOOR R/R FUSE ECU-ACC FUSE ECU-B 1 FUSE ECU-B 2 FUSE ECU-B 3 FUSE FC (RIGHT CENTER OF DASH) FORWARD RECOGNITION CAMERA FORWARD RECOGNITION W/ HEATER HOOD SUB-ASSEMBLY FROM ACC RELAY (DIAGRAM 6 OF 7) FROM CERTIFICATION ECU (DIAGRAM 2 OF 7) FROM ENGINE ROOM R/B 1 (DIAGRAM 3 OF 7) FROM FUSIBLE LINK BLOCK ASSEMBLY (DIAGRAM 1 OF 7) GRN WIRE GRY WIRE HAZ FUSE ID CODE BOX (IMMOBILIZER CODE ECU) L/D-DR UNLOCK RELAY LEFT BLIND SPOT MONITOR SENSOR LEFT FRONT FOOT LIGHT (LEFT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1) LEFT FRONT POWER SEAT SWITCH ASSEMBLY LEFT FRONT SEAT OUTER BELT ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LEFT POSITION CONTROL ECU ASSEMBLY LEFT POWER WINDOW REGULATOR MOTOR ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU MAP LIGHT ASSEMBLY MILLIMETER WAVE RADAR SENSOR ASSEMBLY MULTIPLEX NETWORK DOOR ECU MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY MULTIPLEX TILT, TELESCOPIC ECU NAVIGATION ECU NETWORK GATEWAY ECU OBD FUSE OCCUPANT DETECTION ECU ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY P/OUTLET 1 FUSE P/SEAT F/L FUSE P/SEAT FUSE PNK WIRE POWER FUSE POWER OUTLET SOCKET ASSEMBLY 1 POWER STEERING ECU W/ MOTOR ASSEMBLY PPL PPL/BLK WIRE PPL/GRN WIRE PPL/LT GRN WIRE PPL/PNK WIRE PPL/RED WIRE PPL/VIO WIRE R/B 6 REAR CROSS TRAFFIC ALERT BUZZER (BLIND SPOT MONITOR BUZZER) REAR WIPER MOTOR ASSEMBLY RED WIRE RIGHT BLIND SPOT MONITOR SENSOR RIGHT END OF DASH) RIGHT FRONT FOOT LIGHT (RIGHT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1) RIGHT FRONT POWER SEAT SWITCH ASSEMBLY RIGHT FRONT SEAT OUTER BELT ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY RIGHT POWER WINDOW REGULATOR MOTOR ASSEMBLY S/ROOF FUSE SLIDING ROOF CONTROL ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) STEERING LOCK ACTUATOR/ UPPER BRACKET ASSEMBLY STEERING SENSOR STOP FUSE STOP LIGHT SWITCH ASSEMBLY STRG LOCK FUSE TELEMATICS TRANSCEIVER TELLTALE LIGHT ASSEMBLY TI, TE FUSE TO CERTIFICATION ECU (DIAGRAM 2 OF 7) TO DOOR R/R FUSE (DIAGRAM 4 OF 7) TO ENGINE ROOM J/B 1 (DIAGRAM 2 OF 7) TO R/B 6 (DIAGRAM 5 OF 7) TO TAIL RELAY (DIAGRAM 7 OF 7) VIO WIRE W/ MEMORY W/O MEMORY WASHER FUSE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER RELAY ASSEMBLY WIPER RR FUSE

A/C AMPLIFIER ASSEMBLY ACC RELAY AIR BAG ECU ASSEMBLY BLK WIRE BLK/RED WIRE BLU WIRE BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY CERTIFICATION ECU COMBINATION METER ASSEMBLY DCM FUSE DEF RELAY DEICER RELAY DIS DOME CUT RELAY DOME FUSE DOOR BACK FUSE DOOR BACK RELAY ECU-ACC FUSE ECU-B 1 FUSE ECU-B 3 FUSE ENGINE ROOM R/B 1 FC (RIGHT CENTER OF DASH) FROM CERTIFICATION ECU (DIAGRAM 4 OF 7) FROM ENGINE ROOM R/B 1 (DIAGRAM 1 OF 7) FROM ENGINE ROOM R/B 1 (DIAGRAM 2 OF 7) FROM INSTRUMENT PANEL J/B ASSEMBLY (DIAGRAM 5 OF 7) GRN WIRE GRY WIRE H-LP CLN RELAY HAZ FUSE ID CODE BOX (IMMOBILIZER CODE ECU) INTEGRATION CONTROL, PANEL ASSEMBLY LEFT FRONT FOOT LIGHT (LEFT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1) LT BLU WIRE LT GRN WIRE MAIN BODY ECU METER MIRROR SUB-ASSEMBLY MOBILE WIRELESS CHARGER CRADLE ASSEMBLY (IF EQUIPPED) MULTIPLEX TILT, TELESCOPIC ECU NAVIGATION ECU NETWORK GATEWAY ECU OCCUPANT DETECTION ECU ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY P/OUTLET 1 FUSE PNK WIRE POWER OUTLET SOCKET ASSEMBLY 1 PPL/BLK WIRE PPL/GRN WIRE PPL/LT GRN WIRE PPL/PNK WIRE PPL/RED WIRE PPL/VIO WIRE R/B 2 (RIGHT SIDE OF ENGINE COMPT) R/B 6 RADIO RECEIVER ASSEMBLY REAR WIPER MOTOR ASSEMBLY RED WIRE REFRESHING SEAT SWITCH RIGHT END OF DASH) RIGHT FRONT FOOT LIGHT (RIGHT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1) S/HTR RELAY SHIFT LOCK CONTROL ECU (SHIFT LOCK CONTROL UNIT ASSEMBLY) SHIFT POSITION INDICATOR STEERING LOCK ACTUATOR/ UPPER BRACKET ASSEMBLY STEREO COMPONENT EQUALIZER ASSEMBLY STOP FUSE STOP LIGHT SWITCH ASSEMBLY STRG LOCK FUSE TAIL TELEMATICS TRANSCEIVER THEFT WARNING SIREN ASSEMBLY TO DOOR R/L FUSE (DIAGRAM 5 OF 7) TO ECU-B 2 FUSE (DIAGRAM 4 OF 7) TO ENGINE ROOM J/B 1 (DIAGRAM 2 OF 7) TO R/B 4 (DIAGRAM 2 OF 7) TO R/B 6 (DIAGRAM 6 OF 7) TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY) VEHICLE APPROACHING SPEAKER CONTROLLER VIO WIRE W/ HEAD UP DISPLAY W/O MEMORY WASHER FUSE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER RELAY ASSEMBLY WIPER RR FUSE

2.0L 2.0L 2.0L HYBRID 2.0L HYBRID BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY CAN I/F CANN CANP COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRIVER DISPLAY ES IG+ GRN WIRE GRY WIRE INSTRUMENT PANEL J/B ASSEMBLY LED DRIVER LT BLU WIRE LT GRN WIRE MCI- MCO- MCVD MSM+ MSTI MUTE PNK WIRE PPL/BLU WIRE PPL/LT GRN WIRE RED WIRE RELAY ENERGIZED SGND SHIELD SPEAKER SPI+ SPO- TELLTALES TX- TX+ USBG USBV VIO WIRE VOR- VOT+ W/ SAFETY CONNECT W/O SAFETY CONNECT WHT WIRE WHT/BLK WIRE

2.0L 2.0L 2.0L HYBRID 2.0L HYBRID BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY CAN I/F CANN CANP COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRIVER DISPLAY GRN WIRE GRY WIRE IG+ ES LED DRIVER LT BLU WIRE LT GRN WIRE MCI- MCO- MCVD MSM+ MSTI MUTE NCA WIRE PNK WIRE PPL/BLU WIRE PPL/LT GRN WIRE RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 SGND SHIELD SPEAKER SPI+ SPO- TELLTALES USB USBG USBS USBV VIO WIRE VOR- VOT+ W/ SAFETY CONNECT WHT WIRE WHT/BLK WIRE

2.0L 2.0L HYBRID BLK WIRE BLU WIRE BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY BSW BUCKLE SWITCH COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-B 4 FUSE ECU-DCC 2 FUSE GRN WIRE GRY WIRE HEAD HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY LBL LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEVEL WARNING SWITCH (BRAKE MASTER CYLINDER RESERVOIR ASSEMBLY) LT BLU WIRE MAIN BODY ECU NE (RIGHT "C" PILLAR) OCCUPANT DETECTION ECU PNK BGND WIRE PNK WIRE PPL PPL/BLK WIRE PPL/RED (OR VIO) WIRE PPL/RED WIRE R/B 3 ASSEMBLY RED WIRE RELAY ENERGIZED RIGHT FRONT OCCUPANT CLASSIFICATION SENSOR RIGHT FRONT SEAT INNER BELT ASSEMBLY RIGHT REAR OCCUPANT CLASSIFICATION SENSOR SGD SIG SVC VIO WIRE WHT WIRE WHT/BLK WIRE