2004 HONDA Pilot

Honda Pilot EX 2004 - BUZZERS, RELAYS & TIMERS

Honda Pilot EX 2004 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
Accessory Power Socket Relay	Passenger's underdash fuse/relay box. See Fig. 134 .
A/C Compressor Clutch Relay	In underhood fuse/relay box. See Fig. 135 .
A/C Condenser Fan Relay	In underhood fuse/relay box. See Fig. 135 .
Back-Up Sensor Beeper Assembly	Right side of cargo area. See Fig. 108 .
Blower Motor Relay	In underhood fuse/relay box. See Fig. 135 .
Foglight Relay 1	Behind left side of dash. See Fig. 51 .
Foglight Relay 2	Behind left side of front bumper. See Fig. 113 .
Headlight Relay 1	In underhood fuse/relay box. See Fig. 135 .
Headlight Relay 2	In underhood fuse/relay box. See Fig. 135 .
Horn Relay	In underhood fuse/relay box. See Fig. 135 .
Interior Light Relay	Behind left side of dash. See Fig. 56 .
Intermittent Wiper Relay	In multi-relay box. See Fig. 4 .
Power Window Relay	In passenger's underdash fuse/relay box. See Fig. 134 .
Radiator Fan Relay	In underhood fuse/relay box. See Fig. 135 .
Rear Accessory Power Socket Relay	Behind left side of dash. See Fig. 56 .
Rear Blower Motor Relay	Under center console. See Fig. 69 .
Rear Window Defogger Relay	In passenger's underdash fuse/relay box. See Fig. 134 .
Rear Window Wiper Intermittent Relay	In multi-relay box. See Fig. 4 .
Reverse Relay	On driver's underdash fuse/relay box. See Fig. 133 .
Seat Heater Relay	In multi-relay box. See Fig. 4 .
Security Relay	Behind left side of dash. See Fig. 55 .
Starter Cut Relay	On driver's underdash fuse/relay box. See Fig. 133 .
Taillight Relay	Behind left side of dash. See Fig. 56 .
Turn Signal/Hazard Relay	On driver's underdash fuse/relay box. See Fig. 133 .
VTM-4 Relay	Behind left side of dash. See Fig. 56 .

Honda Pilot EX 2004 - CIRCUIT PROTECTION DEVICES

Honda Pilot EX 2004 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
A/C Diode Assembly	Behind right side of dash. See Fig. 83 .
Automatic Dimming Inside Mirror In-Line Fuse	Under left side of dash. See Fig. 50 .
Auxiliary Fuse Box	At left front of engine compartment, to right of battery. See Fig. 11 .
Back-Up Sensor In-Line Fuse	Right rear of cargo area. See Fig. 107 .
Driver's Underdash Fuse/Relay Box	Behind left end of dash. See Fig. 43 .
ELD Unit	In underhood fuse/relay box. See Fig. 2 .
Fog Light In-Line Fuse 2	Behind left side of front bumper. See Fig. 113 .
In-Line Diode No. 1	In Driver's Underdash Fuse/Relay Box. See Fig. 133 .
In-Line Diode No. 2	In Driver's Underdash Fuse/Relay Box. See Fig. 133 .
In-Line Diode No. 3	In passenger's Underdash Fuse/Relay Box. See Fig. 134 .
In-Line Diode No. 4	In passenger's Underdash Fuse/Relay Box. See Fig. 134 .
Security Diode 1 (LX)	Behind left side of dash. See Fig. 53 .
Security Diode 2 (LX)	Behind left side of dash. See Fig. 53 .
Security Diode 3 (LX)	Behind left side of dash. See Fig. 52 .
Security In-Line Fuse 1	Behind left kick panel. See Fig. 48 .
Security In-Line Fuse 2	Behind left kick panel. See Fig. 48 .
Security In-Line Fuse 3	Behind left kick panel. See Fig. 48 .
Underhood Fuse/Relay Box	At right side of engine compartment. See Fig. 1 .

Honda Pilot EX 2004 - CONTROL UNITS

Honda Pilot EX 2004 CONTROL UNITS LOCATION

Component	Location
ABS Modulator Control Unit	At left side of engine compartment. See Fig. 15 .
Back-Up Sensor Control Unit	Right side of cargo area. See Fig. 136 .
ELD Unit	In underhood fuse/relay box. See Fig. 2 .
Immobilizer Control Unit Receiver	In steering column, on ignition key cylinder. See Fig. 40 .
Keyless Receiver Unit	Behind right side of glove box. See Fig. 80 .
Navigation Unit	Under right front seat. See Fig. 95 .
OPDS Unit	In right front seat. See Fig. 98 .
Passenger's Multiplex Control Unit	Behind right kick panel. See Fig. 84 .
Powertrain Control (PCM) Module	Behind center of dash. See Fig. 62 .
Power Window Control Unit	Inside driver door. See Fig. 86 .
Radiator Fan Control Module	Behind left center of dash. See Fig. 60 .
Rearview Camera Control Unit	Under right front seat. See Fig. 96 .
Security Control Unit (LX)	Behind left side of dash. See Fig. 55 .
SRS Unit	Behind lower center of dash. See Fig. 63 .
VTM-4 Control Unit	At left side of cargo area, behind rear side trim panel. See Fig. 104 .

Honda Pilot EX 2004 - MOTORS

Honda Pilot EX 2004 MOTORS LOCATION

Component	Location
A/C Condenser Fan Motor	Behind right side of radiator. See Fig. 7 .
Cruise Control Actuator	At right side of engine compartment, in front of underhood fuse/relay box. See Fig. 3 .
Driver's Power Seat Front Up-Down Motor	Under driver's seat. See Fig. 97 .
Driver's Power Seat Rear Up-Down Motor	Under driver's seat. See Fig. 97 .
Driver's Power Seat Recline Motor	Under driver's seat. See Fig. 97 .
Driver's Power Seat Slide Motor	Under driver's seat. See Fig. 97 .
Front Air Mix Control Motor	On bottom of HVAC assembly. See Fig. 81 .
Front Blower Motor	Under right side of dash, on bottom of blower unit. See Fig. 82 .
Front Mode Control Motor	On left end of HVAC assembly. See Fig. 60 .
Fuel Tank Unit	Under second row seat, below floor access panel. See Fig. 102 .
IAC Valve	Under throttle body assembly. See Fig. 30 .
Radiator Fan Motor	Behind left side of radiator. See Fig. 9 .
Rear Air Mix Control Motor	Under center console panel. See Fig. 75 .
Rear Blower Motor	Under center console. See Fig. 71 .
Rear Mode Control Motor (EX, EX-L)	Under center console panel. See Fig. 75 .
Rear Mode Control Motor (LX)	Under center console panel. See Fig. 74 .
Rear Window Washer Motor	Behind right side of front bumper, on washer reservoir. See Fig. 114 .
Rear Window Wiper Motor	Behind liftgate trim panel. See Fig. 110 .
Recirculation Control Motor	Behind glove box, on left side of blower unit. See Fig. 79 .
Starter	Left side of engine compartment. See Fig. 37 .
Windshield Washer Motor	Behind right side of front bumper, on washer reservoir. See Fig. 114 .
Windshield Wiper Motor	Left side of engine compartment. See Fig. 18 .

Honda Pilot EX 2004 - SENDING UNITS & SENSORS

Honda Pilot EX 2004 SENDING UNITS & SENSORS LOCATION

Component	Location
ATF Temperature Sensor	On transaxle end cover. See Fig. 120 .
Back-Up Sensor (Left Corner)	Left side of rear bumper. See Fig. 127 .
Back-Up Sensor (Left Middle)	On rear bumper. See Fig. 128 .
Brake Light Failure Sensor	At right side of cargo area, on inside of rear side trim panel. See Fig. 105 .
CKP Sensor	At lower front of engine, next to timing belt drive pulley. See Fig. 116 .
CMP Sensor A & B	On top front of engine. See Fig. 20 .
Differential Oil Temperature Sensor	On differential. See Fig. 126 .
Driver Side Impact Sensor	At base of left "B" pillar. See Fig. 101 .
ECT Sensor	At rear of engine, on top of water passage. See Fig. 30 .
EGR Valve & EGR Valve Position Sensor	At rear of left cylinder head, on top of water passage. See Fig. 30 .
Evaporator Temperature Sensor	In HVAC assembly, in evaporator fins. See Fig. 78 .
Front Passenger Side Impact Sensor	At base of right "B" pillar. See Fig. 101 .
FTP Sensor	Under left side of floor. See Fig. 122 .
IAT Sensor	On rear intake manifold chamber. See Fig. 28 .
Input Shaft (Mainshaft) Speed Sensor	On transaxle end cover. See Fig. 119 .
Knock Sensor	On top of engine block, under intake manifold. See Fig. 23 .
MAP Sensor	On top of throttle body assembly. See Fig. 29 .
Output Shaft (Countershaft) Speed Sensor	On top of transaxle. See Fig. 33 .
Outside Air Temperature Sensor	On back of front bumper beam. See Fig. 112 .
Primary (HO2S) Heated Oxygen Sensor	On exhaust pipe, upstream of three-way catalytic converter. See Fig. 31 .
Secondary (HO2S) Heated Oxygen Sensor	On three-way catalytic converter. See Fig. 19 .
TP Sensor	On left side of throttle body assembly. See Fig. 29 .
Wheel Speed Sensor (Left Front)	On left front wheel. See Fig. 16 .
Wheel Speed Sensor (Left Rear)	On left rear wheel. See Fig. 123 .
Wheel Speed Sensor (Right Front)	On right front wheel. See Fig. 19 .
Wheel Speed Sensor (Right Rear)	On right rear wheel. See Fig. 124 .

Honda Pilot EX 2004 - SOLENOIDS & SOLENOID VALVES

Honda Pilot EX 2004 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch	Middle of engine compartment. See Fig. 6 .
A/T Clutch Pressure Control Solenoid Valve A	On transmission housing. See Fig. 36 .
A/T Clutch Pressure Control Solenoid Valve B	On transmission housing. See Fig. 36 .
A/T Clutch Pressure Control Solenoid Valve C	On transmission housing. See Fig. 119 .
EVAP By-Pass Solenoid Valve	Under left side of floor. See Fig. 122 .
EVAP Canister Purge Valve	On top rear of intake manifold. See Fig. 29 .
EVAP Canister Vent Shut Valve	Under left side of floor. See Fig. 121 .
Injector No. 1	Middle of engine compartment. See Fig. 25 .
Injector No. 2	Middle of engine compartment. See Fig. 25 .
Injector No. 3	Middle of engine compartment. See Fig. 25 .
Injector No. 4	Middle of engine compartment. See Fig. 23 .
Injector No. 5	Middle of engine compartment. See Fig. 23 .
Injector No. 6	Middle of engine compartment. See Fig. 23 .
Shift Control Solenoid Valve A	On torque converter housing. See Fig. 118 .
Shift Control Solenoid Valve B	On torque converter housing. See Fig. 35 .
Shift Control Solenoid Valve C	On torque converter housing. See Fig. 118 .
Shift Lock Solenoid	In steering column. See Fig. 39 .
Side Clutch Electromagnetic Coil (Left)	Under rear floor. See Fig. 123 .
Side Clutch Electromagnetic Coil (Right)	Under rear floor. See Fig. 125 .
Starter Solenoid	Left side of engine compartment. See Fig. 37 .
Torque Converter Clutch Solenoid Valve	On torque converter housing. See Fig. 35 .
VTEC Solenoid Valve	At front of engine, on oil pump housing extension. See Fig. 116 .

Honda Pilot EX 2004 - SWITCHES

Honda Pilot EX 2004 SWITCHES LOCATION

Component	Location
A/C Pressure Switch	At right side of engine compartment. See Fig. 19 .
Brake Fluid Level Switch	Integral to brake fluid reservoir cap. See Fig. 17 .
Brake Pedal Position Switch	At top of brake pedal arm. See Fig. 59 .
Driver's Door Key Cylinder Switch	In driver's door. See Fig. 86 .
Driver's Door Switch	On left "B" pillar. See Fig. 88 .
Driver Seat Belt Switch	Under driver seat. See Fig. 91 .
Front Passenger Seat Belt Switch	Under front passenger seat. See Fig. 94 .
Parking Brake Switch	At top of parking brake pedal. See Fig. 42 .
Park Pin Switch	In steering column. See Fig. 39 .
PSP Switch	On power steering pressure line. See Fig. 115 .
Radiator Fan Switch A	At rear of engine, on thermostat cover. See Fig. 34 .
Radiator Fan Switch B	On front of left cylinder head. See Fig. 24 .
Radiator Fan Switch C	On bottom lower left of radiator. See Fig. 9 .
Security Hood Switch	At center front of engine compartment. See Fig. 7 .
Tailgate Lock Knob Switch	In tailgate. See Fig. 109 .
Transmission Range Switch	On transaxle end cover. See Fig. 32 .
VTEC Oil Pressure Switch	On lower right front of engine. See Fig. 117 .
4th Clutch Transmission Fluid Pressure Switch	On transaxle end cover. See Fig. 119 .

Honda Pilot EX 2004 - MISCELLANEOUS

Honda Pilot EX 2004 MISCELLANEOUS LOCATION

Component	Location
Alternator	Middle of engine compartment. See Fig. 22 .
Data Link (DLC) Connector	Lower left side of dash. See Fig. 61 .
Driver's Seat Back Heater	In driver's seat. See Fig. 129 .
Driver's Seat Belt Tensioner	Base of left "B" pillar. See Fig. 101 .
Driver's Seat Cushion Heater	In driver's seat. See Fig. 129 .
Driver's Side Airbag Inflator	In driver's seat. See Fig. 91 .
Front Blower Power Transistor	On bottom of blower unit, next to front blower motor. See Fig. 81 .
Front Passenger's Airbag	Behind right side of dash. See Fig. 78 .
Front Passenger's Side Airbag	In front passenger's seat. See Fig. 94 .
GPS Antenna	Behind upper center of dash, behind center panel. See Fig. 64 .
Horn (High)	Behind front bumper. See Fig. 131 .
Horn (Low)	Behind front bumper. See Fig. 130 .
Ignition Coil No. 1	Middle of engine compartment. See Fig. 27 .
Ignition Coil No. 2	Middle of engine compartment. See Fig. 27 .
Ignition Coil No. 3	Middle of engine compartment. See Fig. 27 .
Ignition Coil No. 4	Middle of engine compartment. See Fig. 21 .
Ignition Coil No. 5	Middle of engine compartment. See Fig. 21 .
Ignition Coil No. 6	Middle of engine compartment. See Fig. 21 .
Interior Lights Noise Condenser	Behind right side of dash. See Fig. 132 .
Junction Connector C103	At left side of engine compartment. See Fig. 31 .
Junction Connector C104	At left side of engine compartment. See Fig. 32 .
Junction Connector C105	At center of engine compartment. See Fig. 26 .
Junction Connector C106	At center of engine compartment. See Fig. 26 .
MES Connector	Under left side of dash. See Fig. 43 .
Multiplex Control Inspection Connector	Behind left side of dash. See Fig. 58 .
Navigation Service Check Connector	Under right front seat. See Fig. 95 .
Rear Blower Power Transistor	Under center console. See Fig. 70 .
Rear Blower Resistor	Under center console. See Fig. 69 .
Rear Window Defogger Noise Condenser	Behind liftgate upper trim. See Fig. 90 .
Test Tachometer Connector	At left side of engine compartment. See Fig. 16 .

Honda Pilot EX 2004 - CONNECTORS

Honda Pilot EX 2004 CONNECTORS LOCATION

Component	Location
C101 (Gray, 14 Pin)	At left side of engine compartment. See See Fig. 14 .
C102 (Gray, 10 Pin)	At left side of engine compartment. See See Fig. 14 .
C151 (Gray, 8 Pin)	At left side of engine compartment. See See Fig. 36 .
C161 (Gray, 1 Pin)	At right side of engine compartment. See See Fig. 24 .
C170 (Honda Accessory) (Gray, 1 Pin)	Near battery. See Fig. 12 .
C201 (Light Blue, 16 Pin)	Under right side of dash. See Fig. 79 .
C202 (Brown, 7 Pin)	Under right side of dash. See Fig. 79 .
C203 (Gray, 22 Pin)	Behind right kick panel. See Fig. 85 .
C301 (Gray, 20 Pin)	Under left side of dash. See Fig. 51 .
C302 (Light Blue, 6 Pin)	Under left side of dash. See Fig. 57 .
C303 (Light Blue, 16 Pin)	Behind left kick panel. See Fig. 44 .
C315 (Light Blue, 6 Pin)	In steering column cover. See Fig. 41 .
C329 (LX)	Under left side of dash. See Fig. 54 .
C335 (Gray, 2 Pin)	Under left side of dash. See Fig. 55 .
C401 (Light Blue, 24 Pin)	Under left side of dash. See Fig. 49 .
C402 (Gray, 14 Pin)	Under left side of dash. See Fig. 49 .
C403 (White, 6 Pin)	Under center of dash. See Fig. 65 .
C501 (Gray, 4 Pin)	Under center of dash. See Fig. 77 .
C502 (W/O Rear Entertainment System) (Gray, 8 Pin)	Under center console. See Fig. 67 .
C502 (W/Rear Entertainment System) (Gray, 14 Pin)	Under center console. See Fig. 67 .
C503 (Brown, 2 Pin)	Under center console. See Fig. 66 .
C504 (W/O Rear Entertainment System) (White, 13 Pin)	Under center console. See Fig. 67 .
C504 (W/Rear Entertainment System) (White, 21 Pin)	Under center console. See Fig. 67 .
C551 (White, 6 Pin)	Behind right kick panel. See Fig. 85 .
C552 (Gray, 8 Pin)	Behind left kick panel. See Fig. 45 .
C553 (White, 13 Pin)	Behind left kick panel. See Fig. 45 .
C570 (Honda Accessory) (Gray, 3 Pin)	Behind front of roof panel. See Fig. 89 .
C601 (Gray, 12 Pin)	Behind left kick panel. See Fig. 46 .
C602 (Light Blue, 24 Pin)	Behind left kick panel. See Fig. 44 .
C603 (Gray, 2 Pin)	Behind left kick panel. See Fig. 44 .
C604 (EX & EX-L) (Gray, 10 Pin)	At left "B" pillar. See Fig. 88 .
C604 (LX) (Gray, 8 Pin)	At left "B" pillar. See Fig. 88 .
C605 (EX-L Canada) (10 Pin)	Under driver seat. See Fig. 92 .
C605 (EX USA) (Gray, 6 Pin)	Under driver seat. See Fig. 92 .
C610 (Gray, 6 Pin)	Under rear floor. See Fig. 124 .
C651 (Gray, 18 Pin)	Behind right kick panel. See Fig. 84 .
C652 (EX & EX-L) (Gray, 10 Pin)	At right "B" pillar. See Fig. 88 .
C652 (LX) (Gray, 8 Pin)	At right "B" pillar. See Fig. 88 .
C653 (Gray, 8 Pin)	Behind liftgate upper trim. See Fig. 90 .
C654 (White, 12 Pin)	Behind liftgate upper trim. See Fig. 90 .
C701 (Gray, 4 Pin)	Under left side of dash. See Fig. 49 .
C702 (EX & EX-L) (Gray, 6 Pin)	At left front door. See Fig. 87 .
C702 (LX) (Gray, 4 Pin)	At left front door. See Fig. 87 .
C801 (Yellow, 2 Pin)	Under center of dash. See Fig. 66 .
C802 (Yellow, 4 Pin)	Under center of dash. See Fig. 66 .
C803 (Gray, 4 Pin)	Under front passenger seat. See Fig. 93 .
C851 (White, 6 Pin)	Behind liftgate trim panel. See Fig. 111 .
C852 (Brown, 2 Pin)	Behind liftgate trim panel. See Fig. 111 .
C853 (Light Blue, 6 Pin)	Behind liftgate trim panel. See Fig. 111 .
C901 (EX-L, Honda Accessory) (Light Blue, 24 Pin)	Under center console. See Fig. 73 .
C901 (EX-L, Navigation) (Light Blue, 24 Pin)	Under center of console. See Fig. 72 .
C951 (Gray, 2 Pin)	Under center of console. See Fig. 71 .

Honda Pilot EX 2004 - GROUNDS

Honda Pilot EX 2004 GROUNDS LOCATION

Component	Location
G1	On left side of engine compartment, near battery. See Fig. 10 .
G2	At front of engine compartment. See Fig. 8 .
G20	Behind right headlight. See Fig. 5 .
G101	At left rear of engine. See Fig. 34 .
G102	At right front of engine, near power steering pump. See Fig. 20 .
G151	At rear of transaxle. See Fig. 120 .
G201	Behind right headlight. See Fig. 5 .
G301	At left front side of engine compartment, behind headlight. See Fig. 13 .
G302	Below driver underdash fuse/relay box. See Fig. 47 .
G401	Behind upper left end of dash. See Fig. 38 .
G501	Behind left end of dash. See Fig. 49 .
G502	Behind left side of dash. See Fig. 38 .
G503	Behind right end of dash. See Fig. 80 .
G504	Behind center of dash. See Fig. 68 .
G505	Behind lower center of dash. See Fig. 63 .
G601	Below left front seat. See Fig. 99 .
G602	Above left rear fender. See Fig. 103 .
G651	Below right front seat. See Fig. 100 .
G652	Above right rear fender. See Fig. 106 .
G801	Below center console. See Fig. 76 .