Lexus CT I (2010-2014) (left side of center console) Wiring diagrams

ADIM BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DCM (TELEMATICS TRANSCEIVER) (BEHIND CENTER OF DASH) DISPLAY, NAVIGATION MODULE DISPLAY ILL+ SWG DOOR CONTROL SWITCH ASSEMBLY GLOVE BOX LIGHT ASSEMBLY GRN WIRE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEAD AUTO HEADLIGHT DIMMER SWITCH ASSEMBLY LIGHT CONTROL SWITCH MAIN BODY ECU MULTI- DISPLAY ILL+ MULTI- DISPLAY SWITCH OF DASH) OFF TAIL OUTER MIRROR HEATER SWITCH ASSEMBLY (W/ FRONT WINDOW DEICER) RADIO ILL+ RECEIVER ASSEMBLY ILL- RADIO RECEIVER ASSEMBLY ILL- RED WIRE SEAT HEATER SWITCH (IF EQUIPPED) SHIFT INDICATOR LIGHT SWG SWG TAIL ACAN TRANSMISSION SHIFT MAIN SWITCH VIO WIRE W/ NAVIGATION W/ STEREO COMPONENT AMPLIFIER W/O NAVIGATION W/O STEREO COMPONENT AMPLIFIER W/O W/ NAVIGATION NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 +B 1 2 3 4 5 +B 1 2 3 4 5 6 7 USB USBG VOT+ USBV VOT- VOR- VOR+ 1 2 3 4 5 6 MI+ AGND ALI ANTENNA ARI ASGN AUXI BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DISPLAY, NAVIGATION MODULE DISPLAY GPS ANTENNA GRN WIRE GRY WIRE GVIF IEEE IEEE CONNECTOR LT GRN WIRE MI+ MI- SLDO MO- MULTI-MEDIA MODULE NAVIGATION ASSEMBLY NCA WIRE NTSC RADIO RECEIVER ASSEMBLY RED WIRE SDARS ANTENNA SLD SLDI SUB ANTENNA TX- TX+ V+ CA+ V- CGND VIO WIRE VV+ NTSF VMTF VV- W/ BACK GUIDE MONITOR W/ HDD W/O BACK GUIDE MONITOR WHT WIRE WHT/BLK WIRE WUI WUO

BLK WIRE BLU WIRE BRN WIRE CLOSE OPEN COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE GVIF HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) IGN FUSE LT GRN WIRE MAYDAY FUSE MTX- MULTI- DISPLAY SWITCH MULTI-DISPLAY NCA WIRE PNK WIRE RAD 1 FUSE RAD 2 FUSE RED WIRE SGND TILT VCC VDD VIO WIRE W/ BACK GUIDE MONITOR W/ REAR VIEW MONITOR WHT WIRE WHT/BLK WIRE YEL WIRE

BBI+ BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM GPS ANTENNA GRN WIRE GRY WIRE GSW INSTRUMENT CLUSTER SYSTEM LT GRN WIRE MCI- MCO- MCVD MULTI-MEDIA INTERFACE ECU ASSEMBLY (UNDER CENTER CONSOLE) MUTE NCA WIRE PNK WIRE RED WIRE SGND SIG SIL SPDP SPI+ SPO- STEREO JACK ADAPTER ASSEMBLY 1 TELEPHONE ANTENNA ULO+ URO+ USB USBG USBV VIO WIRE VOR- VOT+ WHT WIRE WHT/BLK WIRE

BACKUP BATTERY (MAYDAY BATTERY) BBO- BLK WIRE BLU WIRE BRN WIRE CB+ CGND COMPUTER DATA LINES SYSTEM PNK WIRE CV+ GRN WIRE GRY WIRE GVIF HOT IN ON OR START ECU-IG 2 FUSE INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) LT GRN WIRE MACC MAP LIGHT ASSEMBLY MCO- MICROPHONE, MICROPHONE AMPLIFIER NCA WIRE ORG/ WIRE PARKING ASSIST ECU (W/ BACK GUIDE MONITOR) (BEHIND RIGHT SIDE OF DASH) PNK WIRE REAR TELEVISION CAMERA ASSEMBLY RED WIRE SOS SWITCH VIO WIRE W/ BACK GUIDE MONITOR W/ LEXUS ENFORM W/O BACK GUIDE MONITOR W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE

AGND BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA DISPLAY, NAVIGATION MODULE DISPLAY DOOR LOCKS SYSTEM GRN WIRE GRY WIRE GRY/BLK WIRE INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) LEFT FRONT SPEAKER ASSEMBLY 2 LEFT FRONT SPEAKER ASSEMBLY 3 LEFT STEERING PAD SWITCH LINES SYSTEM LINES SYSTEM COMPUTER DATA LT BLU WIRE LT GRN WIRE MACC MIN MODE NCA WIRE OFF HOOK ON HOOK PARKING BRAKE SWITCH (BASE OF PARKING BRAKE LEVER) PNK WIRE RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT FRONT SPEAKER ASSEMBLY 3 RIGHT STEERING PAD SWITCH SECH SEEK SGND SPIRAL CABLE SUB-ASSEMBLY (STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY SWG SYSTEM INTERIOR LIGHTS VA- VAL+ VAR+ VIO WIRE VOICE VOLUME- W/ LEXUS ENFORM OR SAFETY CONNECT W/O LEXUS ENFORM OR SAFETY CONNECT WHT WIRE WHT/BLK WIRE YEL WIRE

AMP 1 FUSE AMP 2 FUSE B+ GND BLK WIRE BLU WIRE BOX SPEAKER ASSEMBLY 1 BRN WIRE CTR- CTR+ ML- MR- ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FL+ RL+ RR+ FL- FR- FR+ RL- RR- FRONT SPEAKER ASSEMBLY 4 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM LEFT FRONT SPEAKER ASSEMBLY 1 LEFT REAR SPEAKER ASSEMBLY 1 LEFT REAR SPEAKER ASSEMBLY 2 LT GRN WIRE MI+ MO- NCA WIRE PNK ML+ MR+ WIRE PNK WIRE RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 1 RIGHT REAR SPEAKER ASSEMBLY 1 RIGHT REAR SPEAKER ASSEMBLY 2 SLDI SLDO SPD WUI MI+ SLDI MO+ TMUT STEREO COMPONENT AMPLIFIER ASSEMBLY (BELOW RIGHT FRONT SEAT) VIO WIRE W/ LEXUS ENFORM OR SAFETY CONNECT W/O LEXUS ENFORM OR SAFETY CONNECT WHT WIRE WHT/BLK WIRE WUI WUO MI- SLDO MO- YEL WIRE

ACTG BK/DR RELAY BLK WIRE BLU WIRE BRN WIRE BUZZER CAN MASTER IND I/F COMBINATION METER ASSEMBLY COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM D/L SOURCE RELAY ECU- ECU- IG 1 FUSE FUSE FUSE LEFT END OF DASH) EFII EFIO GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (BEHIND LEFT STOP FUSE END OF DASH) HOT IN HOT AT ON OR ALL TIMES INSTRUMENT PANEL DOOR J/B (BEHIND HOT IN ON OR HOT IN ON OR START ID CODE BOX (BEHIND LEFT SIDE OF DASH) LT BLU WIRE MAIN BODY ECU MET FUSE GAUGE FUSE MULTI-INFORMATION DISPLAY PNK WIRE RED WIRE SECURITY IND TO D/L RELAY (DIAGRAM 3 OF 5) VIO WIRE WHT/BLK WIRE YEL WIRE

2 38 37 18 4 PNK WIRE 31 29 32 ALTB BLK WIRE BLU WIRE BRN WIRE BUZZER CLS CLOSE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOOR 1 FUSE DOWN DOWN ECU- IG 1 FUSE ECU-ACC FUSE ECU-B FUSE ECU-IG 2 FUSE ENGINE ROOM R/B (LEFT SIDE GRN WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LT BLU WIRE M- M+ MAIN BODY ECU MAP LIGHT ASSEMBLY MASTER IND MET FUSE OF ENGINE COMPT) OPN OPN DWN CLS UP ORG/ WIRE PNK CANH WIRE PNK LIN IG WIRE PNK WIRE RED WIRE S/ROOF FUSE SLIDING ROOF CONTROL ECU (CENTER OF ROOF) SLIDING ROOF CONTROL SWITCH UP UP VIO WIRE WHT WIRE WHT/BLK WIRE

+ECU 31 29 32 30 ALTB 9 10 3 CANP CANN BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL CIRCUIT DOOR 1 FUSE DOOR R/L FUSE DOOR R/R FUSE DRIVER SIDE AUTO SWITCH DRIVER SIDE DOWN SWITCH DRIVER SIDE UP SWITCH DRIVER'S DOOR FRONT PASSENGER SIDE CONTROL SWITCH FUSE GRN WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) ECU-B FUSE HOT AT ALL TIMES INSTRUMENT PANEL J/B D FR DOOR FUSE (BEHIND LEFT END OF DASH) HOT IN ACC OR ON HOT IN ON OR START IG BECU LIN 2 FLCY INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) LED LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LEFT REAR SIDE CONTROL SWITCH MAIN BODY ECU MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY P FR DOOR FUSE PNK WIRE POWER WINDOW INDICATOR RED WIRE RIGHT REAR SIDE CONTROL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDOW LOCK SWITCH WINDOW LOCK SWITCH INDICATOR YEL WIRE