Honda Civic VII facelift (2003-2006) horns system Wiring diagrams

+B BACK UP ABS MODULATOR CONTROL UNIT (LEFT SIDE OF ENGINE COMPT) ANTI-THEFT SYSTEM B+ DAY LT HEADLIGHTS LOW FR WIPER PASS ILLUMINATION KEYLESS RECEIVER UNIT BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BRN/YEL WIRE BUS GROUND CANADA COMMU- NICATION COUPE DX, HX DOOR LOCKS SYSTEM DR DOOR LCK REMOTE IN DR DOOR UNLK REMOTE IN DRL H/L SW IMMOBI CODE DIMMER HIGH EBD ECM/PCM (BEHIND GLOVE BOX) EXTERIOR LIGHTS, CRUISE CONTROL SYSTEMS INTERIOR LIGHTS SYSTEM FR WIPER (INT VOL -) FR WIPER (INT VOL +) KEY SWITCH INPUT FUSE 10 FUSE 8 FUSE 12 FUSE 20 FUSE 16 FUSE 3 FUSE 9 GAUGE ASSEMBLY GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GROUND DR DOOR UNLOCK INPUT DR DOOR LOCK INPUT HEADLIGHTS HIGH HORN SWITCH FUSE 16 (UNDERHOOD) FR WASHER MOTOR HORNS SYSTEM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR HOT IN ON OR HOT IN ON IGNITION KEY LIGHT IGNITION KEY SWITCH IGNITION KEY SWITCH/ KEY LIGHT KEY IN IGNITION LIGHTING RELAY BRAKE LEVEL SWITCH A/C PRESSURE SWITCH LOCK UNLOCK UNLOCK LT GRN/BLK WIRE LT GRN/RED WIRE MIST WIPER INPUT MULTIPLEX CONTROL UNIT MULTIPLEX CONTROL UNIT SERVICE CHECK CONNECTOR ORG/ WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SEFMS PCM IGN 2 DAY LT GROUND SHIFT INTERLOCK SYSTEM SHIFT INTERLOCK SYSTEM HEADLIGHTS SYSTEM SMALL LT RELAY - ATP-P SOUND SYSTEMS STOP LIGHT CEILING LIGHT SUPPLEMENTAL RESTRAINTS SYSTEM UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-HOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) USA W/ ABS W/O ABS WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM BEEPER BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE SWITCH A/C PRESSURE SWITCH HEADLIGHTS LOW B+ DAY LT BRN/YEL WIRE CANADA CANADA USA DOOR LOCKS SYSTEM DR DOOR LCK REMOTE IN DR DOOR UNLK REMOTE IN ECM/PCM (BEHIND GLOVE BOX) EXTERIOR LIGHTS, CRUISE CONTROL SYSTEMS INTERIOR LIGHTS SYSTEM FR WIPER PASS ILLUMINATON KEYLESS RECEIVER UNIT DOOR LOCKS MULTIPLEX BUS FUSE 10 FUSE 8 FUSE 12 FUSE 16 FUSE 20 FUSE 3 FUSE 9 FUSE 9 (UNDERHOOD) GAUGE ASSEMBLY GRN WIRE GRN/RED WIRE GROUND GROUND DR DOOR UNLOCK INPUT DR DOOR LOCK INPUT HEADLIGHTS HIGH HORN RELAY FUSE 16 (UNDERHOOD) FR WASHER MOTOR HORNS SYSTEM HOT AT ALL TIMES HOT IN ON HOT IN ON OR HOT IN ON OR HOT IN ON OR IGNITION KEY LIGHT IGNITION KEY SWITCH/ KEY LIGHT IMMOBILIZER DIMMER HIGH KEY SWITCH INPUT LT GRN/BLK WIRE LT GRN/RED WIRE MIST WIPER INPUT MULTIPLEX BUS MULTIPLEX BUS PCM IGN 2 DAY LT MULTIPLEX CONTROL UNIT MULTIPLEX CONTROL UNIT SERVICE CHECK CONNECTOR ORG/ WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SHIFT INTERLOCK SYSTEM SHIFT INTERLOCK SYSTEM HEADLIGHTS SYSTEM SMALL LT RELAY TRANSMISSION RANGE SW UNDERDASH FUSE/RELAY BOX UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) USA WARNING SYSTEMS WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE

+B BACK UP ABS MODULATOR CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) ANTI-THEFT SYSTEM B+ DAY LT B+ DAY LT H/L LOW FR WIPER (AS) ILLUMINATION + KEYLESS COM BEEPER BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BRN/YEL WIRE BUS (ECU) ILU CANADA COMMU- NICATION D/L REMOTE SW (LOCK) D/L REMOTE SW (UNLOCK) D/L SIL-CON SW (LOCK) DIMMER HIGH SMALL LT RLY- ATP-P DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT, INTERIOR LIGHTS SYSTEMS DRL H/L SW IMMOBI CORD EXTERIOR LIGHTS, CRUISE CONTROL, ANTI-LOCK BRAKES SYSTEMS INTERIOR LIGHTS SYSTEM FR WIPER (INT) IG KEY LT- EBD K/L UNSET K/L SET FR WIPER INT UNIT FR WIPER INT VOL - FR WIPER INT VOL + KEY SW FUSE 12 FUSE 20 FUSE 3 FUSE 8 FUSE 10 FUSE 9 GAUGE ASSEMBLY GND SHIFT LOCK SOL P PIN SW GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GROUND GROUND MPCS CHK H/L HI HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS, ANTI-THEFT SYSTEMS HORN SW +B DOOR LOCK FR WASHER MTR HORNS SYSTEM HOT AT ALL TIMES HOT IN HOT IN ON OR HOT IN ON HOT IN ON OR IGNITION KEY LIGHT IGNITION KEY SWITCH IGNITION KEY SWITCH/ KEY LIGHT (IN STEERING COLUMN COVER) INTERIOR LIGHTS, ANTI-THEFT SYSTEMS KEY LOCK SOL + LIGHTING RLY- BRAKE LEVEL SW LT GRN/BLK WIRE LT GRN/RED WIRE METER MULTIPLEX CONTROL UNIT MULTIPLEX CONTROL UNIT SERVICE CHECK CONNECTOR OR ON ORG/ WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SECURITY CONTROL UNIT CONNECTOR (OPTIONAL) (UNDER LEFT SIDE OF DASH) SHIFT INTERLOCK SYSTEM SHIFT INTERLOCK SYSTEM HEADLIGHTS SYSTEM SOUND SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM WARNING SYSTEM TRANSMISSION CONTROL MODULE (CVT) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (ON LEFT SIDE OF ENGINE COMPT) FUSE 16 WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS WIPER/WASHER SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

A/T A/T EXCEPT CVT A/T EXCEPT CVT, CVT BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU (OR LT GRN) WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CABLE REEL (ON STEERING COLUMN) CANCEL SWITCH CLUTCH PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) COUPE LX, EX CRUISE CONTROL ACTUATOR (USA HX, SEDAN LX, EX, GX) (RIGHT SIDE OF CRUISE CONTROL MAIN SWITCH CRUISE CONTROL SET/RESUME CANCEL SWITCH CRUISE CONTROL SWITCH LIGHT CRUISE INDICATOR CVT ECM/PCM (BEHIND GLOVE BOX) EXCEPT CVT EXCEPT HX, LX, EX FUSE 10 FUSE 4 FUSE 7 GAUGE ASSEMBLY GRN WIRE GRY WIRE GRY/RED WIRE HORN RELAY HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START HX, LX, EX JUNCTION JUNCTION CONNECTOR LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE M/T MULTIPLEX CONTROL UNIT OF ENGINE COMPT) OFF ON INDICATOR ORG/ WIRE PCM (BEHIND GLOVE BOX) PNK WIRE RED WIRE RESUME + SWITCH SECURITY CONTROL UNIT CONNECTOR (OPTIONAL) (UNDER LEFT SIDE OF DASH) SET SWITCH STEERING WHEEL) TRANSMISSION RANGE SWITCH (ON TRANSMISSION HOUSING) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-HOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) USA HX, SEDAN LX, EX, GX COUPE LX, EX VSS (ON TRANSMISSION HOUSING) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 (CLH) (BRNC) (GND) (IG) (BRNO) (SET) (RES) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU (OR NCA) WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CABLE REEL CLUTCH PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) CRUISE CONTROL ACTUATOR (RIGHT SIDE OF ENGINE COMPT) CRUISE CONTROL MAIN SWITCH CRUISE CONTROL MAIN SWITCH LIGHT CRUISE CONTROL SET/RESUME CANCEL SWITCH CRUISE CONTROL UNIT (UNDER LEFT SIDE OF DASH) CRUISE INDICATOR FUSE 10 FUSE 4 FUSE 7 GRN WIRE GRN/RED WIRE HORN RELAY HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER LT BLU WIRE LT GRN (OR NCA) WIRE LT GRN WIRE LT GRN/BLK WIRE MULTIPLEX CONTROL UNIT OFF ON INDICATOR ORG/ WIRE RED WIRE SECURITY CONTROL UNIT CONNECTOR (UNDER LEFT SIDE OF DASH) STEERING WHEEL) UNDERDASH FUSE/RELAY BOX (BEHIND LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) VSS (TRANSMISSION HOUSING) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

+B BACK-UP +B DOOR LOCK HORN SW BLK WIRE BLU WIRE BLU/ORG WIRE CARLINK CARLINK INTERFACE BOX (UNDER MIDDLE OF DASH) COUPE COUPE, SEDAN DRIVER'S DOOR LOCK ACTUATOR DRIVER'S DOOR LOCK KNOB SWITCH DRIVER'S DOOR LOCK SWITCH DRIVER'S DOOR SWITCH EX, LX, GX EX, LX, GX KEY LESS CONNECTOR EXCEPT CARLINK EXTERIOR LIGHTS SYSTEM (HONDA ACCESSORY) FRONT PASSENGER'S OR PASSENGER'S DOOR LOCK ACTUATOR FRONT PASSENGER'S OR PASSENGER'S DOOR SWITCH FUSE 1 FUSE 10 FUSE 16 FUSE 2 FUSE 20 FUSE 9 GRN WIRE GRN/ WHT WIRE GRN/BLK WIRE GRN/WHT WIRE HONDA ACCESSORY HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IGNITION KEY SWITCH IGNITION KEY SWITCH/KEY LIGHT KEYLESS CUT (UNDER MIDDLE OF DASH) KEYLESS RECEIVER FUSE 1 (UNDER LEFT SIDE OF DASH) KEYLESS RECEIVER FUSE 2 (UNDER LEFT SIDE OF DASH) KEYLESS RECEIVER UNIT (UNDER CENTER OF DASH) LEFT REAR DOOR LOCK ACTUATOR (SEDAN) LEFT REAR DOOR SWITCH (SEDAN) LOCK LT GRN RED/ WIRE LT GRN WIRE LT GRN/RED WIRE METER MULTIPLEX CONTROL UNIT ORG/ WIRE RED WIRE RED/WHT WIRE RIGHT REAR DOOR LOCK ACTUATOR (SEDAN) RIGHT REAR DOOR SWITCH (SEDAN) SEDAN SWITCH (MIDDLE OF TRUNK LID) TRUNK LATCH TRUNK LIGHT UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-HOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) UNLOCK UNLOCK UNLOCK WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM (HONDA ACCESSORY) YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BLU/ORG WIRE DRIVER'S DOOR LOCK ACTUATOR DRIVER'S DOOR LOCK KNOB SWITCH DRIVER'S DOOR LOCK SWITCH DRIVER'S DOOR SWITCH FUSE 10 FUSE 16 FUSE 9 GRN WIRE GROUND LOCK UNLOCK LOCK UNLOCK HATCH LATCH SWITCH HATCH LOCK ACTUATOR HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IGNITION KEY SWITCH IGNITION KEY SWITCH/KEY LIGHT KEYLESS RECEIVER UNIT (UNDER MIDDLE OF DASH) LOCK LT GRN WIRE LT GRN/RED WIRE MULTIPLEX CONTROL UNIT ORG/ WIRE PASSENGER'S DOOR LOCK ACTUATOR PASSENGER'S DOOR SWITCH RED WIRE RED/WHT WIRE SECURITY CONTROL UNIT CONNECTOR (OPTIONAL) TRUNK SWITCH UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPARTMENT) UNLOCK UNLOCK UNLOCK WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

+B BACK UP B+ DOOR LOCK BLK WIRE BLU WIRE BLU/ORG WIRE CARLINK CARLINK CARD READER (AT LEFT "C" PILLAR) D/L DR MTR (UNLOCK) D/L MTR (LOCK) D/L MTR (UNLOCK) D/L REMOTE SW (LOCK) D/L REMOTE SW (UNLOCK) D/L SIL-CON SW (UNLOCK) DRIVER'S DOOR LOCK ACTUATOR DRIVER'S DOOR LOCK KNOB SWITCH DRIVER'S DOOR LOCK SWITCH EXCEPT CARLINK FR DOOR SW (AS) FR DOOR SW (DR) FRONT PASSENGER'S DOOR LOCK ACTUATOR FUSE 10 FUSE 9 FUSE 16 GRN WIRE GRN/WHT WIRE GROUND HORN SW HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IGNITION KEY SWITCH IGNITION KEY SWITCH/KEY LIGHT (IN STEERING COLUMN COVER) K/L SET K/L UNSET KEY SW KEYLESS COM KEYLESS CUT (UNDER MIDDLE OF DASH) LEFT REAR DOOR LOCK ACTUATOR LEFT REAR DOOR SWITCH LOCK LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MULTIPLEX CONTROL UNIT ORG/ WIRE RED WIRE RED/WHT WIRE RIGHT REAR DOOR LOCK ACTUATOR RIGHT REAR DOOR SWITCH RR DOOR SW SECURITY CONTROL UNIT CONNECTOR (OPTIONAL) (UNDER LEFT SIDE OF DASH) TRUNK LATCH SWITCH TRUNK LIGHT TRUNK SW (T/G SW) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (ON LEFT SIDE OF ENGINE COMPT) UNLOCK WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE COMBINATION LIGHT SWITCH CRUISE CONTROL SYSTEM DRIVER'S DOOR SWITCH FRONT PASSENGER'S OR PASSENGER'S DOOR SWITCH FUSE 10 FUSE 15 FUSE 2 FUSE 20 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HEADLIGHT SWITCH HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IGNITION KEY SWITCH IGNITION KEY SWITCH/ KEY LIGHT KEYLESS RECEIVER FUSE 1 (UNDER LEFT SIDE OF DASH) KEYLESS RECEIVER FUSE 2 (UNDER LEFT KEYLESS RECEIVER UNIT (UNDER CENTER OF DASH) LEFT REAR DOOR SWITCH (SEDAN) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MULTIPLEX CONTROL UNIT ORG/ WIRE RED WIRE RED/WHT WIRE RIGHT REAR DOOR SWITCH (SEDAN) SECURITY CONTROL UNIT (UNDER LEFT SIDE OF DASH) SECURITY LED SEDAN SIDE OF DASH) TAILLIGHT RELAY TRUNK LATCH SWITCH (MIDDLE OF TRUNK LID) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-HOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE