Honda Civic VII facelift (2003-2006) multiplex control unit Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 RRS- RRS+ ABS INDICATOR CIRCUIT ABS INDICATOR LIGHT ABS MODULATOR CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) BRAKE SW IN IGN INPUT GROUND B+ B+ GROUND ABS INDIC EBD BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DLC INPUT/OUT DLC INPUT/OUT EBD FRS- FRS+ FLS- FLS+ RLS- RLS+ FUSE 10 FUSE 11 FUSE 7 FUSE 8 GAUGE ASSEMBLY GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE GX EX HOT AT ALL TIMES HOT IN ON HOT IN ON OR START LEFT FRONT WHEEL SPEED SENSOR (AT LEFT FRONT WHEEL) LEFT REAR WHEEL SPEED SENSOR (AT LEFT REAR WHEEL) (AT LEFT SIDE OF ENGINE COMPT) LT BLU WIRE MULTIPLEX CONTROL UNIT ORG/ WIRE RED WIRE RIGHT FRONT WHEEL SPEED SENSOR (AT RIGHT FRONT WHEEL) RIGHT REAR WHEEL SPEED SENSOR (AT RIGHT REAR WHEEL) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 RRS- RRS+ ABS INDICATOR CIRCUIT ABS INDICATOR LIGHT ABS MODULATOR CONTROL UNIT (LEFT SIDE OF ENGINE COMPT) BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) BRAKE SW IN IGN INPUT GROUND B+ B+ GROUND ABS INDIC BRK SYS IND BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CRUISE CONTROL SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DLC INPUT DLC INPUT EBD ENGINE CONTROL SYSTEM EPS CONTROL UNIT FRS- FRS+ FLS- FLS+ RLS- RLS+ FUSE 10 FUSE 11 FUSE 7 FUSE 8 GAUGE ASSEMBLY GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON HOT IN ON OR START LEFT FRONT WHEEL SENSOR (INSIDE WHEEL) LEFT REAR WHEEL SENSOR (INSIDE WHEEL) LT BLU WIRE MULTIPLEX CONTROL UNIT ORG/ WIRE RED WIRE RIGHT FRONT WHEEL SENSOR (INSIDE WHEEL) RIGHT REAR WHEEL SENSOR (INSIDE WHEEL) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPARTMENT) UNDERHOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

ABS INDICATOR ABS INDICATOR CIRCUIT ABS MODULATOR CONTROL UNIT (RIGHT SIDE OF ENGINE COMPT) BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SWITCH (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EBD FUSE 10 FUSE 11 FUSE 7 FUSE 10 FUSE 8 GAUGE ASSEMBLY GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GROUND GROUND GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON HOT IN ON OR START LEFT FRONT WHEEL SPEED SENSOR (AT LEFT FRONT WHEEL) LEFT REAR WHEEL SPEED SENSOR (AT LEFT REAR WHEEL) LT GRN/RED WIRE MCM (BEHIND GLOVE BOX) MULTIPLEX CONTROL UNIT ORG/ WIRE RED WIRE RIGHT FRONT WHEEL SPEED SENSOR (AT RIGHT FRONT WHEEL) RIGHT REAR WHEEL SPEED SENSOR (AT RIGHT REAR WHEEL) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL 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

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE CRUISE CONTROL SYSTEM DRIVER'S DOOR SWITCH DRL CONTROL UNIT (UNDER LEFT SIDE OF DASH) (CANADA) FUSE 10 FUSE 15 FUSE 17 FUSE 19 FUSE 2 FUSE 9 FUSE 7 GRN WIRE HATCH LATCH SWITCH HEAD- LIGHTS RELAY 1 HEAD- LIGHTS RELAY 2 HEADLIGHTS SYSTEM HORN RELAY HORN 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) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MULTIPLEX CONTROL UNIT ORG/ WIRE PASSENGER'S DOOR SWITCH RED WIRE RED/WHT WIRE RED/YEL WIRE SECURITY CONTROL UNIT (UNDER LEFT SIDE OF DASH) SECURITY LED TAILLIGHT RELAY UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (ON RIGHT SIDE OF ENGINE COMPARTMENT) WHT WIRE WHT/RED WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE CARLINK INTERFACE BOX (UNDER MIDDLE OF DASH) COMBINATION LIGHT SWITCH DRIVER'S DOOR SWITCH (ON LEFT "B" PILLAR) DRL H/L SW FR DOOR SW (AS) FR DOOR SW (DR) FRONT PASSENGER'S DOOR SWITCH (ON RIGHT "B" PILLAR) FUSE 10 FUSE 15 GRN WIRE GRN/WHT WIRE HORNS, CRUISE CONTROL SYSTEMS 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 LEFT REAR DOOR SWITCH 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 RR DOOR SW SECURITY CONTROL UNIT (UNDER LEFT SIDE OF DASH) SECURITY LED (UNDER LEFT SIDE OF DASH) TRUNK LATCH SWITCH TRUNK LIGHT TRUNK SW (T/G SW) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) WHT WIRE YEL WIRE

BLK WIRE BLU/ORG WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM FUEL PRESSURE REGULATOR SWITCH (RIGHT SIDE OF ENGINE COMPT) FUEL TANK INTERNAL SOLENOID VALVE (LEFT SIDE OF TRUNK) FUSE 17 FUSE 6 FUSE 9 GAUGE ASSEMBLY GRN/ORG WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IMMOBI- LIZER CODE IMMOBILIZER CONTROL UNIT -RECEIVER (IN STEERING COLUMN COVER) IMMOBILIZER SYSTEM INDICATOR IMO FPR INJECTOR RELAY (BEHIND GLOVE BOX) JUNCTION JUNCTION CONNECTOR MRLY MULTIPLEX CONTROL UNIT PARKING BRAKE SWITCH PCM (BEHIND GLOVE BOX) PGM-FI MAIN RELAY 1 (BEHIND GLOVE BOX) PGM-FI MAIN RELAY 2 (BEHIND GLOVE BOX) PPL RED/BLU WIRE RED/YEL WIRE UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-HOOD FUSE/ RELAY BOX (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU/ORG WIRE BRN WIRE BRN/YEL WIRE CARLINK CARLINK IINTERFACE BOX (UNDER MIDDLE OF DASH) COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM ECM (BEHIND GLOVE BOX) ENGINE CONTROLS SYSTEM FUEL TANK UNIT (ON TOP OF FUEL TANK) FUEL PUMP FUSE 17 FUSE 4 FUSE 6 FUSE 9 GAUGE ASSEMBLY GRN/ORG WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IMMOBI- LIZER CORD IMMOBILIZER CONTROL UNIT -RECEIVER (IN STEERING COLUMN COVER) IMMOBILIZER SYSTEM INDICATOR IMO FPR INSTRUMENT CLUSTER SYSTEM JUNCTION MRLY MULTI-FUSE/ RELAY BOX (ON LEFT SIDE OF ENGINE COMPT) MULTIPLEX CONTROL UNIT PGM-FI MAIN RELAY 1 (BEHIND GLOVE BOX) PGM-FI MAIN RELAY 2 RED WIRE RED/BLU WIRE RED/YEL WIRE UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/ RELAY BOX (ON LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

A/C CLUTCH RELAY A/C COMPRESSOR (BEHIND LEFT A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C CONDENSER FAN MOTOR (BEHIND A/C CONDENSER FAN MOTOR) A/C CONDENSER FAN RELAY A/C PRESS SWITCH A/C PRESSURE SWITCH (LEFT SIDE OF ENGINE COMPT) ACCESSORY A/C BLK WIRE BLK/YEL WIRE BLOWER MOTOR RELAY BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE COMMUNI- CATION (SEFMJ) ECM/PCM (BEHIND GLOVE BOX) ECT SENSOR (REAR OF ENGINE) EXCEPT GX FACTORY A/C FAN CONTROL FUSE 1 FUSE 12 FUSE 4 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES JUNCTION MULTIPLEX CONTROL UNIT OPTIONAL CONNECTOR (FOR A/C) (WITH ACCESSORY A/C INSTALLED) RADIATOR FAN MOTOR (MIDDLE OF ENGINE COMPT) RADIATOR FAN RELAY RED WIRE RED/WHT WIRE SEDAN SENS GND SENS INPUT SIDE OF A/C CONDENSER FAN MOTOR) THERMAL PROTECTOR UNDER-DASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDER-HOOD FUSE/RELAY BOX (RIGHT SIDE OF ENGINE COMPT) WHT WIRE YEL WIRE

A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C CONDENSER FAN MOTOR (RIGHT FRONT OF ENGINE COMPARTMENT) A/C CONDENSER FAN RELAY A/C PRESSURE SWITCH (ACS) A/C PRESSURE SWITCH (LEFT FRONT OF ENGINE COMPARTMENT) BLK WIRE BLK/YEL WIRE BLOWER MOTOR RELAY BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE COMMUNICATION (SEFMJ) ECM (BEHIND GLOVE BOX) ECU BUS + FAN CONTROL (FANC) FUSE 1 FUSE 12 FUSE 4 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES MULTIPLEX CONTROL UNIT NCA WIRE RADIATOR FAN MOTOR (LEFT FRONT OF ENGINE COMPARTMENT) RADIATOR FAN RELAY RED WIRE RELAY CTRL (ACC) THERMAL PROTECTOR (ABOVE 252 KPA (122 PSI) UNDERDASH FUSE/RELAY BOX (UNDER LEFT SIDE OF DASH) UNDERHOOD FUSE/RELAY BOX (LEFT SIDE OF ENGINE COMPARTMENT) YEL WIRE