Acura TL IV (2008-2011) center junction box (under left side of dash) Wiring diagrams

8 49 48 44 (BKSW) (CAN-L) (CAN-H) (WEN) ABS/ VSA FUSE ABS/VSA MOTOR FUSE BLK WIRE BLU WIRE BRAKE PEDAL POSITION SWITCH (ON BRAKE PEDAL MOUNTING BRACKET) CAN H CAN L GND COMPUTER DATA LINES SYSTEM CAN-H- CAN-L- CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM FUSE 10 FUSE 6 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START K LINE LEFT FRONT WHEEL SPEED SENSOR (IN LEFT FRONT WHEELWELL) LEFT REAR WHEEL SPEED SENSOR (UNDER LEFT REAR LT BLU WIRE LT GRN WIRE MULTI FUSE 2 OF VEHICLE) ORG/ WIRE PASSENGER'S UNDER- DASH FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) PASSENGER'S UNDER-DASH FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) PPL PCM (RIGHT SIDE OF ENGINE COMPT) PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL 5 4 2 1 PPL IGNITION INPUT PPL PNK WIRE PWR SOURCE (FSR+B) SPD SENS (FL+B) SPD SENS IN (FR-GND) PPL RED WIRE REFERENCE VOLT RIGHT FRONT WHEEL SPEED SENSOR (IN RIGHT FRONT WHEELWELL) RIGHT REAR WHEEL SPEED SENSOR (UNDER RIGHT REAR OF VEHICLE) SPD SENS (FL+B) SPD SENS (FL-GND) GND STR-Z UNDER-HOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT) VSA MODULATOR CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) W/ SH-AWD W/O SH-AWD WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 COMMON SENS GND 28 29 PPL A/C DIODE B A/C PRESSURE SENSOR (RIGHT REAR OF ENGINE COMPT) AC SI AC SO AC CLK B CAN LO B CAN HI FRESH RECIRCULATE A/C PRESSURE SENS PPL AUDIO NAVIGATION SWITCH PANEL AUDIO-HVAC DISPLAY UNIT AUDIO-NAVIGATION UNIT (W/ NAVIGATION) BLK WIRE BLK/BRN WIRE BLU WIRE BRN WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) CLIMATE CONTROL UNIT COMPUTER DATA LINES SYSTEM DISP CLK DISP SO DRIVER'S UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) EVAPORATOR TEMPERATURE SENSOR (UNDER LEFT SIDE OF DASH) FUSE FUSE 21 FUSE 7 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON HUMIDITY SENSOR HUMIDITY/IN-CAR TEMPERATURE SENSOR (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE ORG/ WIRE OUTSIDE AIR TEMPERATURE SENSOR (BEHIND LEFT SIDE OF FRONT BUMPER) PNK PPL WIRE PNK WIRE PPL RADIATOR FAN RELAY RED WIRE TO UNDER- HOOD FUSE/ RELAY BOX (DIAGRAM 2 OF 3) W/ NAVIGATION W/ O NAVIGATION W/ SH-AWD W/O SH-AWD WHT WIRE YEL WIRE

A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C CONDENSER FAN MOTOR (LOWER MIDDLE FRONT OF ENGINE COMPT) BLK WIRE BLOWER MOTOR (UNDER RIGHT SIDE OF DASH) BLU WIRE BRN WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) CLIMATE CONTROL UNIT DEF DEF-LED DRIVER'S MODE CONTROL MOTOR (UNDER LEFT SIDE OF DASH) FR LED (+) FRONT PASSENGER'S CLIMATE CONTROL SWITCH FRONT PASSENGER'S MODE CONTROL MOTOR (BEHIND GLOVE BOX) FUSE FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) GRN WIRE GRY WIRE HOT IN ON IND PWM LT BLU WIRE LT GRN WIRE M-DEF M-VENT MODE 1 MODE 2 MODE 3 MODE 4 ORG/ WIRE PASSENGER'S UNDER-DASH PNK WIRE PPL PPL SYNC LED FR LED DR IND PWM RED WIRE RED/BLK WIRE S-COM SYNC LED WHT WIRE YEL WIRE

28 29 PNK WIRE ACURALINK CONTROL UNIT (XM RECEIVER) (IF EQUIPPED) (BEHIND MIDDLE OF DASH) AUDIO- NAVIGATION UNIT (IF EQUIPPED) BLK WIRE BLU WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) CLIMATE CONTROL UNIT DRIVER'S JUNCTION BOX 2 (BEHIND LEFT SIDE OF DASH) FUSE 15 HANDSFREE LINK CONTROL UNIT (BEHIND MIDDLE OF DASH) HOT AT ALL TIMES KEYLESS ACCESS CONTROL UNIT (UNDER LEFT SIDE OF DASH) KEYLESS ACCESS JUNCTION BOX (UNDER LEFT SIDE OF DASH) LT BLU WIRE MICU ORG/ WIRE PNK 18 17 WIRE PNK 18 19 WIRE PNK WIRE POWER CONTROL UNIT (UNDER LEFT SIDE OF DASH) RED (OR BLU) WIRE RED WIRE REMOTE ENGINE START CONNECTOR (OPTION) (UNDER LEFT SIDE OF DASH) REMOTE SLOT CONTROL UNIT (BEHIND RIGHT SIDE OF DASH) SH-AWD CONTROL UNIT (IF EQUIPPED) UNDER-HOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT) USED) (NOT W/ KEYLESS ACCESS W/ NAVIGATION W/O NAVIGATION WHT WIRE

AUDIO UNIT (W/O NAVIGATION) AUDIO- NAVIGATION UNIT (W/ NAVIGATION) BLK WIRE BLU WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) DRIVER'S JUNCTION BOX 2 DRIVER'S JUNCTION BOX 2 (BEHIND LEFT SIDE OF DASH) EPS CONTROL UNIT (UNDER RIGHT SIDE OF DASH) FRONT PASSENGER'S POWER WINDOW SWITCH GAUGE CONTROL MODULE LT BLU (OR BLU) WIRE LT BLU WIRE MOONROOF CONTROL UNIT/MOTOR (MIDDLE OF ROOF) ORG/ WIRE PNK PNK WIRE PNK WIRE POWER WINDOW MASTER SWITCH RED WIRE SRS UNIT (UNDER LOWER MIDDLE OF DASH) TPMS CONTROL UNIT (UNDER LEFT SIDE OF DASH) VSA MODULATOR CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) W/ NAVIGATION W/O NAVIGATION WHT WIRE

"B" PILLAR) +B BACKUP B-CAN HI B-CAN LO BLK WIRE BLU WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) CONTROL UNIT RIGHT LEFT AMBI- AMBI- ENT ENT LIGHT LIGHT COURTESY LIGHT DOOR LEFT IND FRONT INDI- VIDUAL MAP LIGHT SWITCH DRIVER'S DOOR DRIVER'S DOOR SWITCH (IN LEFT DRIVER'S JUNCTION BOX 1 (BEHIND LEFT SIDE OF DASH) DRIVER'S MICU DRIVER'S UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) DRIVER'S VANITY MIRROR VISOR OPEN FR COUR- TESY L FRONT INDIVIDUAL MAP LIGHTS/AMBIENT LIGHTS FRONT PASSENGER'S DOOR COURTESY LIGHT FRONT PASSENGER'S DOOR SWITCH (IN RIGHT "B" PILLAR) FRONT PASSENGER'S VANITY VISOR OPEN MIRROR LIGHT OFF FUSE 12 FUSE 15 FUSE 16 FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) GRN WIRE HOT AT ALL TIMES IGNITION KEY LIGHT IGNITION KEY SWITCH/ KEY LIGHT INTERIOR LIGHT SWITCH (DOOR) INTERIOR LIGHT SWITCH (OFF) INTERIOR LIGHT SWITCH (ON) INTR LT- KEY LT- LEFT REAR DOOR SWITCH (IN LEFT "C" PILLAR) LEFT REAR REGULATOR INDI- VIDUAL MAP LIGHT SWITCH LEFT RIGHT FRONT FRONT INDI- INDI- VIDUAL VIDUAL MAP MAP LIGHT LIGHT LF DOOR SW LIGHT OFF LR DOOR SW LT BLU WIRE LT GRN WIRE MAP LT OFF OPTIONAL CONNECTOR ORG/ WIRE PASSENGER'S MICU PASSENGER'S UNDER-DASH PNK COMPUTER DATA LINES SYSTEM WIRE POWER DISTRIBUTION SYSTEM REAR INDIVIDUAL MAP LIGHTS RED WIRE REGULATOR REMOTE SLOT RF COUR- TESY RF DOOR SW RR DOOR SW RIGHT FRONT INDIVIDUAL MAP LIGHT SWITCH RIGHT REAR DOOR SWITCH (IN RIGHT "C" PILLAR) RIGHT REAR INDI- ROOF CONSOLE TRUNK LID LATCH SWITCH TRUNK LID OPENER SOLENOID/LATCH SWITCH (MIDDLE OF TRUNK LID) TRUNK LIGHT TRUNK SW UNDER-HOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT) VIDUAL MAP LIGHT W/ KEYLESS ACCESS W/ SH-AWD W/O KEYLESS ACCESS W/O SH-AWD WHT WIRE YEL WIRE

AREA NETWORK AREA NETWORK CONTROLLER BLK WIRE BLU WIRE BRN WIRE CAN-L PPL CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROLLER DRIVER'S JUNCTION BOX 1 (BEHIND LEFT SIDE OF DASH) DRIVER'S UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) ENGINE SPEED OUTPUT EPS CONTROL UNIT (UNDER RIGHT SIDE OF DASH) EPS IND EPS MOTOR EPS MOTOR ANGLE SENSOR EPS TORQUE SENSOR FAST FUSE 12 FUSE 6 GAUGE CONTROL MODULE GROUND BATT IN (B+) MW HOT AT ALL TIMES HOT IN ON OR START K LINE LT BLU WIRE MU MV CAN-H MULTI- FUSE 2 EPS FUSE NEP ORG/ WIRE PASSENGER'S UNDER- DASH FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) PCM (RIGHT SIDE OF ENGINE COMPT) PNK WIRE PPL PVF RED WIRE SCS STEERING ANGLE SENSOR (W/ SH-AWD) (ON STEERING COLUMN) STEERING GEARBOX TRANSCEIVER/ UNDER-HOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT) VSA MODULATOR CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) WARNING DRIVE CIRCUIT WHT WIRE YEL WIRE

+B BACKUP B-CAN HI B-CAN HI B-CAN LO B-CAN LO BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) CONTROL UNIT LEFT LEFT MAP MAP LIGHT LIGHT SWITCH CONTROL UNIT) DOOR SWITCH DRIVER'S DOOR KEY CYLINDER SWITCH DRIVER'S JUNCTION BOX 1 (BEHIND LEFT SIDE OF DASH) FRONT INDIVIDUAL MAP LIGHTS/AMBIENT LIGHTS FRONT PASSENGER'S DOOR SWITCH (IN RIGHT "B" PILLAR) FUSE 15 FUSE 16 FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) GND (MICU -S) GND (MICU-P) GRN WIRE HOT AT ALL TIMES LEFT DOME LIGHT LEFT MAP LIGHT LOCK LOCK UNLOCK LT BLU WIRE LT GRN WIRE METER MICU P-GND MICU S-GND OFF SWITCH ON SWITCH ORG/ WIRE PASSENGER'S MICU PASSENGER'S UNDER-DASH PNK COMPUTER DATA LINES SYSTEM WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER WINDOW MASTER SWITCH REAR INDIVIDUAL MAP LIGHTS REGULATOR RF DOOR SW RR DOOR SW RIGHT DOME LIGHT RIGHT END OF DASH) RIGHT MAP LIGHT RIGHT MAP LIGHT SWITCH RIGHT REAR DOOR SWITCH (IN RIGHT "C" PILLAR) ROOF CONSOLE UNDER-HOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT) UNLOCK VBI W/ SH-AWD W/O SH-AWD WHT WIRE YEL WIRE

27 33 35 PNK UART B-CAN LO B-CAN HI WIRE B-CAN B-CAN GND CLIMATE CONTROL UNIT HI LO BLK WIRE BLU WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL UNIT FRONT PASSENGER'S POWER WINDOW SWITCH CONTROL UNIT POWER WINDOW MASTER SWITCH DEFOGGER LEFT POWER MIRROR (FRONT OF DRIVER'S DOOR) DEFOGGER RIGHT POWER MIRROR DRIVER'S UNDER-DASH FUSE 13 FUSE 16 FUSE/RELAY BOX (BEHIND RIGHT KICK PANEL) FUSE/RELAY BOX (UNDER LEFT END OF DASH) GRN WIRE HEAT (+) HOT AT ALL TIMES HOT IN ON LT GRN WIRE ORG/ WIRE PASSENGER'S UNDER-DASH PNK COMPUTER DATA LINES SYSTEM WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER MIRROR DEFOGGER SWITCH POWER MIRROR DEFOGGER IND RIGHT END OF DASH) UART VMPAS YEL WIRE

B-CAN B-CAN GND HI LO BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BOX (UNDER LEFT SIDE OF DASH) CLIMATE CONTROL UNIT COMPUTER DATA LINES SYSTEM DEFOGGER DEFOGGER COIL DRIVER'S MICU B-CAN B-CAN LO HI DRIVER'S UNDER-DASH FUSE/ RELAY BOX (UNDER LEFT END OF DASH) DRIVER'S UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) FUSE 16 FUSE 4 GRN WIRE HOT AT ALL TIMES HOT IN ON LT GRN WIRE PNK WIRE POWER DISTRIBUTION SYSTEM REAR WINDOW REAR WINDOW DEFOGGER RELAY REAR WINDOW DEFOGGER SWITCH REAR WINDOW DEFOGGER IND RR DEF RLY UNDER-HOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT)