Lexus IS III facelift (2015-2020) ecu-b fuse Wiring diagrams

2 3 RCTY ACC RELAY ACT- 9 10 ACT+ BLK WIRE BLU WIRE BZR 22 23 CANN DMDR DMON DOOR LOCKS, ANTI-THEFT SYSTEMS DRLE ECU-ACC FUSE ECU-B FUSE EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FLCL FRCL FSPT FUEL GRN WIRE GRY WIRE GSW HEADLIGHTS SYSTEM HORN HORNS SYSTEM HORNS SYSTEM HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B ASSEMBLY INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LCTY LGCY LSWL LSWR LT BLU WIRE LT GRN WIRE MAIN BODY ECU MILE 5 6 PNK TSW WIRE NAVIGATION, SOUND SYSTEMS ORG/ WIRE PNK CANP WIRE PNK WIRE POWER WINDOWS SYSTEM POWER WINDOWS, POWER TOPS SYSTEMS RED WIRE RELAY ENERGIZED REV SSCL 19 20 SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AUTO AUTOMATIC LIGHT CONTROL SENSOR BLK WIRE BLU WIRE CANADA USA CLTB CLTE CLTS COMPUTER DATA LINES SYSTEM DIMMER SWITCH DRL OFF DRLE ECU-B FUSE ENGINE ROOM R/B 1 ASSEMBLY FOG LIGHT SWITCH GRN WIRE GRY WIRE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT W/ INSTRUMENT PANEL J/B ASSEMBLY LCTY LEFT FOG LIGHT ASSEMBLY LIGHT CONTROL SWITCH LLEW LT BLU WIRE LT GRN WIRE MAIN BODY ECU METER FUSE MPX-B 1 FUSE OFF ORG/ WIRE PARKING BRAKE SWITCH ASSEMBLY PNK WIRE RCTY RED WIRE RIGHT FOG LIGHT ASSEMBLY RLEW SOLAR SENSOR TAIL VIO WIRE W/ HALOGEN W/ LED WHT WIRE WHT/BLK WIRE YEL WIRE

ACC RELAY AUTO OFF DRL OFF AUTOMATIC LIGHT CONTROL SENSOR BLK WIRE BLU WIRE BRN WIRE CAN I/F CANADA USA CANN CANP CLTB CLTE CLTS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DIMMER SWITCH DISPLAY ECU-ACC FUSE ECU-B FUSE FOG LIGHT SWITCH GRN WIRE GRY WIRE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT W/ INSTRUMENT PANEL J/B ASSEMBLY LCTY LED DRIVER LGCY LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU METER FUSE OFF DRL OFF ORG/ WIRE PNK WIRE RCTY RED WIRE SOLAR SENSOR TAIL TAIL AUTO HEAD TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AUTO BLK WIRE BLU WIRE BRN WIRE CAN I/F CANADA USA COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DRL OFF ECU-B FUSE ENGINE ROOM R/B 1 ASSEMBLY FRWA GRN WIRE GRY WIRE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT SWIVEL ECU ASSEMBLY HEADLIGHT SWIVEL MOTOR, HEADLIGHT LEVELING MOTOR HLC HOT AT ALL TIMES HOT W/ IGS INSTRUMENT PANEL J/B ASSEMBLY LED DRIVER LEFT HEADLIGHT ASSEMBLY LEFT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH - LH E LHIG LHM+ LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU METER FUSE MPX-B 1 FUSE OFF ORG/ WIRE OUT PNK WIRE RED WIRE RH E RH- RHIG RHM + RIGHT HEADLIGHT ASSEMBLY SBR SGR SHRL SMBL SMBR SMGL SMGR SML SMR TAIL TELLTALES VCC VIO WIRE WHT WIRE WHT/BLK WIRE WIPER/ WASHER SYSTEM WIPER/WASHER SYSTEM YEL WIRE

AUTO BLK WIRE BLU WIRE CANADA USA W/ ADAPTIVE FRONT LIGHTING SYSTEM COMPUTER DATA LINES SYSTEM DRL OFF ECU-B FUSE ENGINE ROOM R/B 2 ASSEMBLY FRWA GRN WIRE GRY WIRE H-LP CLN FUSE HEAD HEADLIGHT CLEANER CONTROL RELAY HEADLIGHT CLEANER MOTOR, PUMP ASSEMBLY HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHTS SYSTEM HLC HOT AT ALL TIMES HOT W/ IGS INSTRUMENT PANEL J/B ASSEMBLY LH - LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU MAIN RELAY ENERGIZED OFF ORG/ WIRE PNK SMRL WIRE RED WIRE RH- RIGHT HEADLIGHT ASSEMBLY RIGHT HEADLIGHT CONTROL ECU SBR SGR SHRL SMBR SMGL SMGR SML SMR TAIL VIO WIRE W/O ADAPTIVE FRONT-LIGHTING SYSTEM WASHER FUSE WASHER SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD WASHER MOTOR, PUMP ASSEMBLY WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

ACCD AGND ALL DR LOCK RELAY AMP 1 FUSE AMP 2 FUSE ANTI-THEFT SYSTEM BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) COMPUTER DATA LINES SYSTEM D DR UNLOCK RELAY D/L FUSE DOME CUT RELAY DOME FUSE DOOR F/R FUSE DOOR R/R FUSE ECU-B FUSE ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS, TRANSMISSIONS, CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS ENGINE SWITCH FROM ACC RELAY (DIAGRAM 4 OF 4) FROM D/L FUSE (DIAGRAM 3 OF 4) FROM ECU-ACC FUSE (DIAGRAM 4 OF 4) FROM ENGINE ROOM J/B 2 ASSEMBLY (DIAGRAM 2 OF 4) FROM ENGINE ROOM R/B 1 ASSEMBLY (DIAGRAM 1 OF 4) FUEL LOCK RELAY GRN WIRE GRY WIRE HAZ FUSE IGN 1 FUSE IGN 2 FUSE INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER, EXTERIOR LIGHTS SYSTEMS INSTRUMENT PANEL J/B ASSEMBLY J/B-AM FUSE J/B-B FUSE L/D-DR UNLOCK RELAY LT BLU WIRE LT GRN WIRE MAIN BODY ECU MEMORY, ELECTRONIC POWER STEERING SYSTEMS METER FUSE MIRRORS, MEMORY SYSTEMS NAVIGATION SYSTEM NAVIGATION, SOUND SYSTEMS OBD FUSE ODS FUSE ORG/ WIRE P/SEAT (FR) FUSE PNK WIRE POWER TOPS SYSTEM POWER WINDOWS SYSTEM RADIO FUSE RED WIRE RR SHADE FUSE SEATS SYSTEM SHIFT INTERLOCK, DOOR LOCKS, ANTI-THEFT SYSTEMS SMART FUSE STRG LOCK FUSE SUPPLEMENTAL RESTRAINTS SYSTEM TI, TE FUSE TO ALL DR LOCK RELAY (DIAGRAM 3 OF 4) TO INSTRUMENT PANEL J/B ASSEMBLY (DIAGRAM 4 OF 4) VIO WIRE WARNING, MEMORY, DOOR LOCKS, ANTI-THEFT SYSTEMS WHT WIRE YEL WIRE

ALL DOOR LOCK RELAY BLK WIRE BLU WIRE BZR COMPUTER DATA LINES SYSTEM D DOOR UNLOCK RELAY D/L FUSE DOOR UNLOCK SWITCH SUB-ASSEMBLY ECU-B FUSE GBS GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN HORNS SYSTEM HOT AT ALL TIMES HOT W/ INSTRUMENT PANEL J/B ASSEMBLY L/D DOOR UNLOCK RELAY LCTY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LGCY LSWL LSWR LT BLU WIRE LT GRN WIRE LUGGAGE DOOR OPENING CANCEL SWITCH ASSEMBLY MAIN BODY ECU ORG/ WIRE P/W FUSE PNK WIRE POWER WINDOWS SYSTEM RCTY RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY SSCL TKUL TMSW TRUNK OPN FUSE TRUNK OPN RELAY TSW VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CAN I/F CLOSE CLS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DOWN DWN ECU-B FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ILLB INSTRUMENT PANEL J/B ASSEMBLY KEY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY LILL LOCK LT BLU WIRE LT GRN WIRE MAIN BODY ECU (IN INSTRUMENT PANEL J/B) MAP LIGHT ASSEMBLY METER FUSE OPN ORG/ WIRE PNK WIRE S/ROOF FUSE SLIDING ROOF CONTROL ECU (SLIDING ROOF GEAR SUB ASSEMBLY) SLIDING ROOF CONTROL SWITCH SLIDING ROOF IND SPEAKER UNLOCK VIO WIRE W/O PRE-COLLISION SYSTEM WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CONTROL CIRCUIT DISPLAY DRIVER DOOR F/L FUSE DOOR F/R FUSE DOOR LOCK, UNLOCK SWITCH DOOR R/L FUSE DOOR R/R FUSE DRIVER SIDE DRIVER SIDE AUTO SWITCH DRIVER SIDE DOWN SWITCH DRIVER SIDE UP SWITCH ECU-B FUSE ENGINE ROOM R/B 1 ASSEMBLY FRONT PASSENGER SIDE FRONT PASSENGER SIDE POWER WINDOW SWITCH GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ INDICATOR INSTRUMENT PANEL J/B ASSEMBLY J/C 7 (DRIVER'S DOOR) KEY LOCK KEY UNLOCK LED LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY LEFT REAR SIDE POWER WINDOW SWITCH LEFT REAR, RIGHT REAR SIDE LT GRN WIRE MAIN BODY ECU METER FUSE MPX-B 1 FUSE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY NB (LOWER REAR OF DRIVER'S DOOR) P/W FUSE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER WINDOW SWITCH POWER WINDOW SWITCH INDICATOR RED WIRE REGULATOR RELAY ENERGIZED RIGHT REAR SIDE POWER WINDOW SWITCH SPEAKER SWITCH INDICATOR VIO WIRE W/ MEMORY W/O MEMORY WHT/BLK WIRE WINDOW LOCK WINDOW LOCK SWITCH YEL WIRE

2.0L TURBO 3.5L BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DIODE (PARK/NEUTRAL POSITION SWITCH ASSEMBLY) ECU-B FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ INSTRUMENT PANEL J/B ASSEMBLY J/C 1 J/C 4 (3.5L) J/C 15 (2.0L TURBO) LT BLU WIRE MAIN BODY ECU ORG/ WIRE PARK/ NEUTRAL POSITION SWITCH ASSEMBLY REAR SUNSHADE RELAY (REAR WINDOW SHADE ASSEMBLY) REAR SUNSHADE SWITCH ASSEMBLY RED WIRE REV SHADE RR FUSE WHT/BLK WIRE YEL WIRE