Honda Civic VIII (2005-2009) horn relay Wiring diagrams

+B HORN BACK LT- S-NET BLK WIRE BLU WIRE BRN WIRE CANADA: DX-G DRSWRA DRSWAS P-PIN SW S-GRD ODS DRSWRD BACK LT- FR WIP AS FR WASHER FROM UNDER-DASH FUSE/RELAY BOX (DIAGRAM 1 OF 2) FUSE 22 FUSE 10 FUSE 12 GRN WIRE GRN/BLK WIRE GRY WIRE HAZ SW ILLUMI+ ILLUMI- HAZ SW HEADLIGHTS SYSTEM HOOD SW HORN RELAY HORNS SYSTEM ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM HOT AT ALL TIMES ILLUMI- TRUNK SW DRSWDR INTR LT- LT BLU WIRE LT GRN WIRE MICU SERVICE CHECK CONNECTOR MULTIPLEX INTEGRATED CONTROL SYSTEM UNIT (MICU) ORG/ WIRE P-GRD P-GRD P-GRD ATP-P FR FOG RLY CL - ATP-NP STOP SW PNK PPL WIRE PNK WIRE PPL RADIO SW SCS B-CAN B-CAN K-LINE RED WIRE RED/BLK WIRE SCS K-LINE FR WIP LO FR WIP HI TURN SIGNAL/HAZARD FLASHER CIRCUIT UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNDERHOOD FUSE/RELAY BOX (ON LEFT SIDE OF ENGINE COMPT) FUSE 23 USA VBU VBU +B INTR LT +B HAZARD W/ 2-DOOR W/ SI WHT WIRE YEL WIRE

+B HORN BLK WIRE BLU WIRE BRN WIRE DRSWRA DRSWAS P-PIN SW S-GRD ODS DRSWRD BACK LT- FR WIP AS FR WASHER FROM UNDER-DASH FUSE/RELAY BOX (DIAGRAM 1 OF 2) FUSE 22 FUSE 10 FUSE 12 GRN WIRE GRN/BLK WIRE GRY WIRE HAZ SW ILLUMI+ ILLUMI- HAZ SW HEADLIGHTS SYSTEM HOOD SW HORN RELAY HORNS SYSTEM ANTI-THEFT SYSTEM HEADLIGHTS SYSTEM HOT AT ALL TIMES ILLUMI- TRUNK SW DRSWDR INTR LT- LT BLU WIRE LT GRN WIRE MICU SERVICE CHECK CONNECTOR MULTIPLEX INTEGRATED CONTROL SYSTEM UNIT (MICU) ORG/ WIRE P-GRD P-GRD P-GRD ATP-P FR FOG RLY CL - ATP-NP STOP SW PNK PPL WIRE PNK WIRE PPL RADIO SW SCS B-CAN B-CAN K-LINE RED WIRE RED/BLK WIRE S-NET SCS K-LINE FR WIP LO FR WIP HI TURN SIGNAL/HAZARD FLASHER CIRCUIT UNDERHOOD FUSE/RELAY BOX (LEFT REAR OF ENGINE COMPT) FUSE 23 VBU +B INTR LT +B HAZARD VBU STS W/ 2-DOOR W/ SI WHT WIRE YEL WIRE

APP SENSOR (UNDER LEFT SIDE OF DASH) AREA NETWORK CONTROLER BLK WIRE BLK/BLU WIRE BLU WIRE BLU(OR GRN) WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) BRN WIRE CAN H CAN L BKSWNC BKSW CRMTCLS IGP CLUTCH PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CRUISE CONTROL INDICATOR CRUISE CONTROL MAIN SWITCH INDICATOR CRUISE DIMMING CIRCUIT ECM/PCM (LEFT SIDE OF ENGINE COMPT) ETCSM-1 ETCSM+ FUSE 10 FUSE 3 GAUGE CONTROL MODULE GAUGES GRN WIRE GRN(OR BLU) WIRE GRY WIRE HORN RELAY HOT IN ON OR START IGP INDICATORS LT BLU WIRE LT GRN WIRE M/T MICU MRLY IGP APSA APSB ETCSRLY NETWORK TRANSCEIVER FAST CONTROLLER AREA OF ENGINE) ORG/ WIRE OUTPUT SHAFT SPEED SENSOR (ON TRANSMIAAION HOUSING) POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/BLK WIRE RED/YEL WIRE SENSOR INPUT SI LX,EX STABILIZE CIRCUIT TP SENSOR/THROTTLE ACTUATOR (ON THROTTLE BODY) TPSA TPSB TRANS- MISSION RANGE SWITCH (ON TRANSMISSION HOUSING) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) WARNING DRIVE CIRCUIT WHT WIRE WHT/GRN WIRE YEL WIRE YEL(OR RED/BLU) WIRE YEL/GRN(OR GRN/YEL) WIRE YEL/RED(OR BLU/RED) WIRE

A/T APP SENSOR (LEFT SIDE OF DASH) AREA NETWORK CONTROLER ATP-FWD BLK WIRE BLK/BLU WIRE BLU WIRE BLU(OR GRN) WIRE BRAKE PEDAL POSITION SWITCH (ON BRAKE PEDAL SUPPORT) BRN WIRE CAN H CAN L BKSWNC BKSW CRMTCLS IGP CLUTCH PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) CRUISE CONTROL INDICATOR CRUISE CONTROL MAIN SWITCH INDICATOR CRUISE DIMMING CIRCUIT ETCSM-1 ETCSM+ FUSE 10 FUSE 3 GAUGE CONTROL MODULE GAUGES GRN WIRE GRN(OR BLU) WIRE GRY WIRE HORN RELAY HOT IN ON OR START IGP INDICATORS LT BLU WIRE LT GRN WIRE M/T MICU MRLY IGP APSA APSB ETCSRLY NETWORK TRANSCEIVER FAST CONTROLLER AREA ORG/ WIRE OUTPUT SHAFT SPEED SENSOR (ON TRANS HOUSING) PPL RED WIRE RED/BLK WIRE SENSOR INPUT SI LX,EX STABILIZE CIRCUIT TP SENSOR/THROTTLE ACTUATOR (ON THROTTLE BODY) TPSA TPSB TRANS- MISSION RANGE SWITCH (ON TRANSMISSION) UNDER-DASH FUSE/RELAY BOX (BEHIND LEFT KICK PANEL) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-DASH JUNCTION BOX (UNDER LEFT SIDE OF DASH) WARNING DRIVE CIRCUIT WHT WIRE WHT/GRN WIRE YEL WIRE YEL(OR RED/BLU) WIRE YEL/GRN(OR GRN/YEL) WIRE YEL/RED(OR BLU/RED) WIRE

10 11 12 13 14 15 16 17 PPL BLK WIRE BLU WIRE BRN WIRE DOOR LOCK KNOB SWITCH DOOR LOCK RELAY DRIVER' DOOR LOCK ACTUATOR/KNOB SWITCH DRIVER'S DOOR UNLOCK RELAY FRONT PASSENGER'S DOOR LOCK ACTUATOR/KNOB SWITCH FUSE 10 FUSE 15 FUSE 16 FUSE 17 FUSE 19 FUSE 21 FUSE 25 GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN ON OR START IG KEY SW VBU VBU B-CAN TRUNK SW AT-P IMMOBILIZER CIRCUIT JUNCTION CONNECTOR KEY KEY CYLINDER SWITCH LOCK LOW BEAM HEAD- LIGHT RELAY LT GRN WIRE MICU ORG/ WIRE P-GND P-GND P-GND PASSENGER'S DOOR UNLOCK RELAY PNK 5 6 7 8 9 WIRE PNK PNK WIRE PNK WIRE PPL RED WIRE RIGHT REAR DOOR LOCK ACTUATOR/KNOB SWITCH (4 DOOR) S GND TAILLIGHT RELAY UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNLOCK WHT WIRE YEL WIRE

4 DOOR BLK WIRE BLU WIRE BRN WIRE DOOR LOCK KNOB SWITCH DOOR LOCK RELAY DRIVER' DOOR LOCK ACTUATOR/KNOB SWITCH DRIVER'S DOOR UNLOCK RELAY FRONT PASSENGER'S DOOR LOCK ACTUATOR/KNOB SWITCH FUSE 10 FUSE 15 FUSE 16 FUSE 17 FUSE 19 FUSE 21 FUSE 25 GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN ON OR START IMMOBILIZER CIRCUIT JUNCTION CONNECTOR KEY CYLINDER SWITCH LOCK LOCK (2 DOOR) (BEHIND LEFT KICK PANEL) LOCK PNK WIRE LOW BEAM HEAD- LIGHT RELAY LT BLU WIRE LT GRN WIRE MICU ORG/ WIRE P-GND P-GND P-GND PASSENGER'S DOOR UNLOCK RELAY PNK PNK WIRE PNK WIRE PPL RED WIRE RIGHT REAR DOOR LOCK ACTUATOR/KNOB SWITCH (4 DOOR) S GND TAILLIGHT RELAY TRUNK LID OPENER RELAY (EX, SI) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNLOCK UNLOCK KEY WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE DOOR LOCK KNOB SWITCH DOOR LOCK RELAY DRIVER' DOOR LOCK ACTUATOR/KNOB SWITCH DRIVER'S DOOR UNLOCK RELAY FRONT PASSENGER'S DOOR LOCK ACTUATOR/KNOB SWITCH FUSE 10 FUSE 15 FUSE 16 FUSE 17 FUSE 19 FUSE 25 GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN ON OR START IMMOBILIZER CIRCUIT JUNCTION CONNECTOR KEY KEY CYLINDER SWITCH LOCK LOCK PNK WIRE LOW BEAM HEAD- LIGHT RELAY LT BLU WIRE LT GRN WIRE MICU ORG/ WIRE P-GND P-GND P-GND PASSENGER'S DOOR UNLOCK RELAY PNK PNK WIRE PNK WIRE PPL RED WIRE RIGHT REAR DOOR LOCK ACTUATOR/KNOB SWITCH S GND TAILLIGHT RELAY TRUNK LID OPENER RELAY (US) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNLOCK WHT WIRE YEL WIRE

10 11 12 13 14 15 16 17 PPL BLK WIRE BLU WIRE BRN WIRE DOOR LOCK KNOB SWITCH DOOR LOCK RELAY DRIVER' DOOR LOCK ACTUATOR/KNOB SWITCH DRIVER'S DOOR UNLOCK RELAY FRONT PASSENGER'S DOOR LOCK ACTUATOR/KNOB SWITCH FUSE 10 FUSE 15 FUSE 16 FUSE 17 FUSE 19 FUSE 21 FUSE 25 GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN ON OR START IG KEY SW VBU VBU B-CAN TRUNK SW AT-P IMMOBILIZER CIRCUIT JUNCTION CONNECTOR KEY KEY CYLINDER SWITCH LOCK LOW BEAM HEAD- LIGHT RELAY LT GRN WIRE MICU ORG/ WIRE P-GND P-GND P-GND PASSENGER'S DOOR UNLOCK RELAY PNK 5 6 7 8 9 WIRE PNK PNK WIRE PNK WIRE PPL RED WIRE RIGHT REAR DOOR LOCK ACTUATOR/KNOB SWITCH (4 DOOR) S GND TAILLIGHT RELAY UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNLOCK WHT WIRE YEL WIRE

4 DOOR BLK WIRE BLU WIRE BRN WIRE DOOR LOCK KNOB SWITCH DOOR LOCK RELAY DRIVER' DOOR LOCK ACTUATOR/KNOB SWITCH DRIVER'S DOOR UNLOCK RELAY FRONT PASSENGER'S DOOR LOCK ACTUATOR/KNOB SWITCH FUSE 10 FUSE 15 FUSE 16 FUSE 17 FUSE 19 FUSE 21 FUSE 25 GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN ON OR START IMMOBILIZER CIRCUIT JUNCTION CONNECTOR KEY CYLINDER SWITCH LOCK LOCK (2 DOOR) (BEHIND LEFT KICK PANEL) LOCK PNK WIRE LOW BEAM HEAD- LIGHT RELAY LT BLU WIRE LT GRN WIRE MICU ORG/ WIRE P-GND P-GND P-GND PASSENGER'S DOOR UNLOCK RELAY PNK PNK WIRE PNK WIRE PPL RED WIRE RIGHT REAR DOOR LOCK ACTUATOR/KNOB SWITCH (4 DOOR) S GND TAILLIGHT RELAY TRUNK LID OPENER RELAY (EX, SI) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNLOCK UNLOCK KEY WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE DOOR LOCK KNOB SWITCH DOOR LOCK RELAY DRIVER' DOOR LOCK ACTUATOR/KNOB SWITCH DRIVER'S DOOR UNLOCK RELAY FRONT PASSENGER'S DOOR LOCK ACTUATOR/KNOB SWITCH FUSE 10 FUSE 15 FUSE 16 FUSE 17 FUSE 19 FUSE 25 GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN RELAY HOT AT ALL TIMES HOT IN ON OR START IMMOBILIZER CIRCUIT JUNCTION CONNECTOR KEY KEY CYLINDER SWITCH LOCK LOCK PNK WIRE LOW BEAM HEAD- LIGHT RELAY LT BLU WIRE LT GRN WIRE MICU ORG/ WIRE P-GND P-GND P-GND PASSENGER'S DOOR UNLOCK RELAY PNK PNK WIRE PNK WIRE PPL RED WIRE RIGHT REAR DOOR LOCK ACTUATOR/KNOB SWITCH S GND TAILLIGHT RELAY TRUNK LID OPENER RELAY (US) UNDER-DASH FUSE/RELAY BOX (UNDER LEFT END OF DASH) UNLOCK WHT WIRE YEL WIRE