2004 HONDA Odyssey

Honda Odyssey EX 2004 - BUZZERS, RELAYS & TIMERS

Honda Odyssey EX 2004 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
ABS Fail-Safe Relay	In ABS relay box, on right side of engine compartment. See Fig. 16.
ABS Pump Motor Relay	In ABS relay box, on right side of engine compartment. See Fig. 16.
Accessory Power Socket Relay	In passenger underdash fuse/relay box. See Fig. 141.
A/C Compressor Clutch Relay	In underhood fuse/relay box. See Fig. 142.
Back-Up Sensor Beeper	Right rear of vehicle. See Fig. 136.
Condenser Fan Relay	In underhood fuse/relay box. See Fig. 142.
Front Blower Motor Relay	In underhood fuse/relay box. See Fig. 142.
Fuel Fill Door Relay	Behind left rear side trim panel. See Fig. 87.
Headlight Relay 1	In underhood fuse/relay box. See Fig. 142.
Headlight Relay 2	In underhood fuse/relay box. See Fig. 142.
Horn Relay	In underhood fuse/relay box. See Fig. 142.
Interior Lights Relay	Behind left side of dash. See Fig. 50.
Intermittent Wiper Relay	In multi-fuse/relay box A. See Fig. 127.
Light Flasher Relay	Below left side of dash. See Fig. 44.
Radiator Fan Main Relay	In ABS relay box, on right side of engine compartment. See Fig. 16.
Radiator Fan Relay	In underhood fuse/relay box. See Fig. 142.
Rear Blower Motor High Relay	Behind rear HVAC assembly. See Fig. 95.
Rear Blower Motor Low Relay	Behind rear HVAC assembly. See Fig. 96.
Rear Blower Motor Main Relay	Behind rear HVAC assembly. See Fig. 95.
Rear Blower Motor Middle Relay	Behind rear HVAC assembly. See Fig. 96.
Rear Mode Control Motor Relay	Behind rear HVAC assembly. See Fig. 96.
Rear Power Quarter Window Close Relay (Left)	Behind left rear side trim panel. See Fig. 89.
Rear Power Quarter Window Close Relay (Right)	Behind right rear side trim panel. See Fig. 93.
Rear Power Quarter Window Open Relay (Left)	Behind left rear side trim panel. See Fig. 89.
Rear Power Quarter Window Open Relay (Right)	Behind right rear side trim panel. See Fig. 93.
Rear Window Defogger Relay	In passenger underdash fuse/relay box. See Fig. 141.
Reverse Relay	In driver underdash fuse/relay box. See Fig. 140.
Seat Heater Relay	In multi-fuse/relay box B. See Fig. 127.
Sliding Door Buzzer	Behind left rear side trim panel. See Fig. 84.
Starter Cut Relay	In driver underdash fuse/relay box. See Fig. 140.
Taillight Relay	Behind left side of dash. See Fig. 50.
TCS Relay	In multi-fuse/relay box A. See Fig. 127.
Turn Signal/Hazard Relay	In driver underdash fuse/relay box. See Fig. 141.
Unlock Relay	Below left side of dash. See Fig. 44.

Honda Odyssey EX 2004 - CIRCUIT PROTECTION DEVICES

Honda Odyssey EX 2004 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Driver's Underdash Fuse/Relay Box	Under left side of dash. See Fig. 52.
In-Line Fuse A	At left kick panel. See Fig. 123.
In-Line Fuse 1	Behind left side of dash. See Fig. 56.
In-Line Fuse 2	Behind left side of dash. See Fig. 56.
In-Line Fuse 3	Behind left side of dash. See Fig. 56.
Multi-Relay Box	Left front of engine compartment. See Fig. 128.
Passenger's Underdash Fuse/Relay Box	Under right side of dash. See Fig. 68.
Underhood Fuse/Relay Box	Right side of engine compartment. See Fig. 14.

Honda Odyssey EX 2004 - CONTROL UNITS

Honda Odyssey EX 2004 CONTROL UNITS LOCATION

Component	Location
ABS/TCS Control Unit	Below left side of dash. See Fig. 45.
ABS/TCS Modulator Unit	Left side of engine compartment. See Fig. 25.
Back-Up Sensor Control Unit	Right rear of vehicle. See Fig. 137.
Cruise Control Unit	Under dash, right of steering column. See Fig. 57.
Daytime Running Lights (DRL) Control Unitt	Behind glove box. See Fig. 143.
Driver's Multiplex Control Unit	Under left side of dash. See Fig. 52.
Immobilizer Receiver Unit	On steering column, near steering lock. See Fig. 42.
Keyless Control Unit	Behind dash, right of steering column. See Fig. 57.
Keyless Receiver Unit	Behind right end of dash. See Fig. 65.
Keyless & Security Control Unit	Behind dash, right of steering column. See Fig. 57.
Navigation Unit	Under front passenger's seat. See Fig. 100.
OPDS Unit	Inside passenger seat. See Fig. 121.
Passenger Multiplex Control Unit	In passenger underdash fuse/relay box. See Fig. 68.
PCM	Behind lower center of dash. See Fig. 60.
Power Sliding Door Control Unit (Left)	Behind left rear side trim panel. See Fig. 86.
Power Sliding Door Control Unit (Right)	Behind right rear side trim panel. See Fig. 86.
Power Window Control Unit	In driver's door. See Fig. 132.
Rear View Camera Control Unit	Left rear of vehicle. See Fig. 134.
Rear Window Wiper Intermittent Control Unit	On left rear fenderwell, in cargo area. See Fig. 87.
Sliding Door Lock Control Unit	In left sliding door. See Fig. 81.
SRS Unit	Behind lower center of dash. See Fig. 131.

Honda Odyssey EX 2004 - MOTORS

Honda Odyssey EX 2004 MOTORS LOCATION

Component	Location
A/C Condenser Fan Motor	Behind right side of radiator. See Fig. 18.
Air Mix Control Motor	Below center of dash, on HVAC assembly. See Fig. 62.
Closer Motor	In sliding door. See Fig. 83.
Cruise Control Actuator	At right front corner of engine compartment. See Fig. 15.
Front Blower Motor	Below glove box, on bottom of HVAC assembly. See Fig. 66.
IAC Valve	On bottom of throttle body assembly. See Fig. 32.
Mode Control Motor	Behind left side of dash, on end of HVAC assembly. See Fig. 59.
Power Quarter Window Motor (Left)	Left rear of vehicle. See Fig. 88.
Power Seat Rear Up-Down Motor	Under driver's seat. See Fig. 71.
Power Seat Recline Motor	Under driver's seat. See Fig. 71.
Power Seat Slide Motor (Driver's)	Under driver's seat. See Fig. 71.
Power Window Motor (Driver's)	In driver's door. See Fig. 74.
Power Window Motor (Front Passenger's)	In right front door. See Fig. 75.
Radiator Fan Motor	Behind left side of radiator. See Fig. 20.
Rear Blower Motor	Back side of rear HVAC assembly. See Fig. 94.
Rear Mode Control Motor	Back side of rear HVAC assembly. See Fig. 94.
Rear Power Quarter Window Motor (Left)	Behind left rear side trim panel. See Fig. 88.
Rear Power Quarter Window Motor (Right)	Behind right rear side trim panel. See Fig. 93.
Rear Window Washer Motor	At bottom of windshield washer reservoir. See Fig. 1.
Rear Window Wiper Motor	Behind tailgate trim panel. See Fig. 98.
Recirculation Control Motor	Behind glove box, on HVAC assembly. See Fig. 64.
Release Motor	In sliding door. See Fig. 82.
Remote Control Switch/Release Motor (Left)	In left sliding door. See Fig. 82.
Slide Motor (Right)	Behind right rear side trim panel. See Fig. 91.
Starter Motor	Left side of engine. See Fig. 34.
Windshield Washer Motor	At bottom of windshield washer reservoir. See Fig. 1.
Windshield Wiper Motor	Behind brake master cylinder booster, beneath cover. See Fig. 28.

Honda Odyssey EX 2004 - SENDING UNITS & SENSORS

Honda Odyssey EX 2004 SENDING UNITS & SENSORS LOCATION

Component	Location
ATF Temperature Sensor	On left end of transaxle, near 3rd clutch pressure switch. See Fig. 115.
Brake Light Failure Sensor	At left rear of cargo area. See Fig. 90.
CKP Sensor	On front of engine, behind crankshaft pulley. See Fig. 4.
ECT Sensor	At top rear of engine, on water jacket. See Fig. 31.
EGR Valve & EGR Valve Position Sensor	On top left rear of engine. See Fig. 31.
Evaporator Temperature Sensor	Behind glove box, on HVAC assembly. See Fig. 63.
FTP Sensor	Under front of vehicle, near EVAP canister. See Fig. 10.
Fuel Tank Unit	Under left rear of vehicle, on top of fuel tank. See Fig. 73.
IAT Sensor	At top right rear of engine, on intake manifold. See Fig. 36.
Impact Sensor (Left Front)	Left side of engine compartment. See Fig. 119.
Impact Sensor (Right Front)	Right side of engine compartment. See Fig. 13.
MAP Sensor	On top of throttle body assembly. See Fig. 32.
Outside Air Temperature Sensor	Behind right side of front bumper. See Fig. 2.
Primary HO2S	In exhaust pipe, forward of catalytic converter. See Fig. 6.
Secondary HO2S	On catalytic converter. See Fig. 7.
Side Impact Sensor (Left)	Behind left "B" pillar. See Fig. 108.
Side Impact Sensor (Passenger)	Behind right "B" pillar. See Fig. 108.
Slide Motor Revolution Sensor (Left)	Behind left rear side trim panel. See Fig. 85.
Slide Motor Revolution Sensor (Right)	Behind right rear side trim panel. See Fig. 92.
TDC Sensor	Top front of engine. See Fig. 37.
TP Sensor	On side of throttle body assembly. See Fig. 32.
Wheel Speed Sensor (Left Front)	On left steering knuckle assembly. See Fig. 27.
Wheel Speed Sensor (Left Rear)	On left rear wheel hub assembly. See Fig. 12.
Wheel Speed Sensor (Right Front)	On right steering knuckle assembly. See Fig. 13.
Wheel Speed Sensor (Right Rear)	On right rear wheel hub assembly. See Fig. 12.

Honda Odyssey EX 2004 - SOLENOIDS & SOLENOID VALVES

Honda Odyssey EX 2004 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/T Clutch Pressure Control Solenoid Valve A	On top of transaxle. See Fig. 35.
A/T Clutch Pressure Control Solenoid Valve B	On top of transaxle. See Fig. 35.
A/T Clutch Pressure Control Solenoid Valve C	On left front of transaxle. See Fig. 116.
EVAP Canister Purge Valve	At rear of engine compartment, left of brake booster. See Fig. 104.
Fuel Injector No. 1	Top right side of engine. See Fig. 126.
Fuel Injector No. 2	Top right side of engine. See Fig. 126.
Fuel Injector No. 3	Top right side of engine. See Fig. 126.
Fuel Injector No. 4	Top left side of engine. See Fig. 125.
Fuel Injector No. 5	Top left side of engine. See Fig. 125.
Fuel Injector No. 6	Top left side of engine. See Fig. 125.
Shift Control Solenoid Valve A	On front of transmission. See Fig. 8.
Shift Control Solenoid Valve B	Top of transmission. See Fig. 120.
Shift Control Solenoid Valve C	On front of transaxle. See Fig. 8.
Shift Lock Solenoid	At top of steering column. See Fig. 41.
Sliding Door Lock Actuator	In sliding door. See Fig. 139.
Sliding Door Lock Knob Switch/Actuator	In sliding door. See Fig. 139.
Starter Solenoid	On starter motor. See Fig. 34.
Tailgate Lock Actuator	In tailgate. See Fig. 99.
Torque Converter Clutch Solenoid Valve	On top of transaxle torque converter housing. See Fig. 120.
VTEC Solenoid Valve	On lower front of engine, near oil filter. See Fig. 4.

Honda Odyssey EX 2004 - SWITCHES

Honda Odyssey EX 2004 SWITCHES LOCATION

Component	Location
A/C Pressure Switch	At right side of engine compartment, on A/C receiver line. See Fig. 15.
Brake Fluid Level Switch	In brake fluid reservoir. See Fig. 27.
Brake Pedal Position Switch	On brake pedal bracket. See Fig. 46.
Driver's Door Key Cylinder Switch	In driver's door. See Fig. 74.
Latch Position Switch	In sliding door. See Fig. 83.
Oil Pressure Switch	On lower front of engine. See Fig. 3.
Parking Brake Switch	On parking brake pedal assembly. See Fig. 51.
Park Pin Switch	At top of steering column. See Fig. 41.
PSP Switch	On power steering pressure line. See Fig. 5.
Radiator Fan Switch "A"	At top rear of engine, near thermostat cover. See Fig. 33.
Radiator Fan Switch "B"	At top front of engine, near thermostat cover. See Fig. 37.
Remote Control Switch	In sliding door. See Fig. 82.
Seat Belt Switch (Driver Side)	In driver seat belt buckle. See Fig. 72.
Seat Belt Switch (Passenger Side)	In passenger seat belt buckle. See Fig. 122.
Sliding Door Junction Switch Connector	Left "B" pillar. See Fig. 78.
Sliding Door Junction Switch (Left)	At left sliding door striker. See Fig. 79.
Sliding Door Junction Switch (Right)	At right sliding door striker. See Fig. 79.
Sliding Door Switch (Left)	Near left sliding door striker. See Fig. 80.
Tailgate Knob Switch	In tailgate. See Fig. 99.
Transmission Range Switch	On transaxle end cover. See Fig. 9.
VTEC Oil Pressure Switch	On bottom right side of engine, on side of oil pump housing. See Fig. 3.
3rd Clutch Pressure Switch	Left end of transmission. See Fig. 115.
4th Clutch Pressure Switch	On left side of transmission. See Fig. 116.

Honda Odyssey EX 2004 - MISCELLANEOUS

Honda Odyssey EX 2004 MISCELLANEOUS LOCATION

Component	Location
A/C Diode B	Below right end of dash. See Fig. 67.
A/C Diode C	Below right end of dash. See Fig. 67.
Alternator	Front left side of engine. See Fig. 38.
Blower Power Transistor	Behind glove box, near blower motor. See Fig. 66.
Converter	At left rear of cargo area. See Fig. 90.
DLC	Below center of dash. See Fig. 59.
Driver's Airbag Inflator	On steering wheel. See Fig. 40.
FM Modulator	Behind front console. See Fig. 130.
Fog Light Diode	Below steering column. See Fig. 48.
Front Blower Resistor	Behind glove box, near blower motor. See Fig. 66.
Front Passenger's Airbag	Right side of dash. See Fig. 63.
GPS Antenna	Behind center of dash. See Fig. 102.
Horn (High/Low)	Behind front bumper. See Fig. 1.
Ignition Coil No. 1	Right side of engine. See Fig. 30.
Ignition Coil No. 2	Right side of engine. See Fig. 30.
Ignition Coil No. 3	Right side of engine. See Fig. 30.
Ignition Coil No. 4	Left side of engine. See Fig. 29.
Ignition Coil No. 5	Left side of engine. See Fig. 29.
Ignition Coil No. 6	Left side of engine. See Fig. 29.
Junction Connector C104	At left side of engine compartment. See Fig. 103.
Junction Connector C105	At left side of engine compartment. See Fig. 103.
Junction Connector C106	Under center of dash. See Fig. 61.
Junction Connector C107	Under center of dash. See Fig. 61.
Junction Connector C120	Left of steering column. See Fig. 124.
Navigation Service Check Connector	Under front passenger's seat. See Fig. 100.
Seat Belt Tensioner (Driver's)	In left "B" pillar. See Fig. 76.
Seat Belt Tensioner (Front Passenger's)	In right "B" pillar. See Fig. 77.
Side Airbag Inflator (Driver's)	In driver's seat. See Fig. 118.
Side Airbag Inflator (Front Passenger's)	In front passenger's seat. See Fig. 109.
Subwoofer	Under driver's seat. See Fig. 112.
Test Tachometer Connector	At left rear of engine compartment, on top of brake booster. See Fig. 27.
Trailer Lighting Connector	At upper left side of cargo area. See Fig. 135.

Honda Odyssey EX 2004 - CONNECTORS

Honda Odyssey EX 2004 CONNECTORS LOCATION

Component	Location
C51 (Honda Accessory) (Black, 1 Pin)	Right of steering column. See Fig. 47.
C53 (Honda Accessory) (Gray, 1 Pin)	Left front of engine compartment. See Fig. 22.
C53 (Honda Accessory) (Gray, 2 Pin)	Right side of steering column. See Fig. 47.
C55 (Gray, 3 Pin)	Right of steering column. See Fig. 57.
C56 (EX-L) (Gray, 2 Pin)	Under driver's seat. See Fig. 118.
C101 (Gray, 10 Pin)	At left side of engine compartment. See Fig. 24.
C102 (Gray, 14 Pin)	At left side of engine compartment. See Fig. 24.
C151 (Gray, 8 Pin)	On transaxle housing. See Fig. 114.
C201 (Brown, 7 Pin)	Under right side of dash. See Fig. 64.
C202 (Blue, 6 Pin)	Under right side of dash. See Fig. 64.
C203 (Blue, 16 Pin)	Behind right kick panel. See Fig. 70.
C204 (Gray, 2 Pin)	Behind right kick panel. See Fig. 70.
C205 (Yellow, 4 Pin)	Behind right kick panel. See Fig. 64.
C303 (Light Blue, 24 Pin)	Behind left kick panel. See Fig. 54.
C304 (Yellow, 4 Pin)	Behind left kick panel. See Fig. 117.
C401 (EX) (W/Navigation) (Gray, 22 Pin)	Under left side of dash. See Fig. 49.
C401 (LX) (W/Navigation) (Gray, 14 Pin)	Under left side of dash. See Fig. 49.
C401 (W/O Navigation) (Gray, 14 Pin)	Behind left kick panel. See Fig. 49.
C401 (W/O Navigation) (W/Power Sliding Door) (Gray, 22 Pin)	Behind left kick panel. See Fig. 49.
C402 (Light Blue, 24 Pin)	Under left side of dash. See Fig. 49.
C403 (Gray, 3 Pin)	Under left side of dash. See Fig. 55.
C404 (Gray, 4 Pin)	On steering column. See Fig. 43.
C405 (Light Green, 4 Pin)	On steering column. See Fig. 138.
C451 (White, 13 Pin)	Behind right kick panel. See Fig. 106.
C452 (Brown, 2 Pin)	Behind right kick panel. See Fig. 106.
C501 (Green, 21 Pin)	Behind left kick panel. See Fig. 54.
C502 (White, 13 Pin)	Behind left kick panel. See Fig. 54.
C504 (Gray, 10 Pin)	Under center of dash. See Fig. 61.
C505 (EX) (Blue, 16 Pin)	Behind right kick panel. See Fig. 69.
C505 (White, 21 Pin)	Behind right kick panel. See Fig. 106.
C506 (Brown, 2 Pin)	Behind right kick panel. See Fig. 106.
C507 (Green, 22 Pin)	Behind left kick panel. See Fig. 54.
C508 (Gray, 8 Pin)	Behind left kick panel. See Fig. 54.
C509 (Brown, 2 Pin)	Behind left kick panel. See Fig. 54.
C510 (Gray, 6 Pin)	Behind left quarterpanel. See Fig. 113.
C511 (Blue, 16 Pin)	Behind left quarterpanel. See Fig. 113.
C541 (Honda Accessory) (Light Blue, 24 Pin)	Under center of dash. See Fig. 129.
C541 (Navigation) (Light Blue, 24 Pin)	Behind center of dash. See Fig. 101.
C551 (Yellow, 2 Pin)	Behind left kick panel. See Fig. 53.
C552 (Gray, 12 Pin)	Under driver seat. See Fig. 71.
C553 (Gray, 4 Pin)	At left underside of vehicle. See Fig. 11.
C554 (Except EX) (Gray, 14 Pin)	Left rear of vehicle. See Fig. 88.
C555 (Brown, 2 Pin)	Behind left quarterpanel. See Fig. 88.
C556 (Yellow, 2 Pin)	Under driver seat. See Fig. 111.
C557 (Yellow, 2 Pin)	Under driver seat. See Fig. 111.
C558 (Yellow, 3 Pin)	Under driver seat. See Fig. 111.
C584 (Yellow, 2 Pin)	Under front passenger seat. See Fig. 110.
C589 (Gray, 10 Pin)	Under front passenger's seat. See Fig. 109.
C602 (Light Blue, 6 Pin)	At left side of tailgate. See Fig. 97.
C603 (Brown, 2 Pin)	At left side of tailgate. See Fig. 97.
C751 (Brown, 2 Pin)	Behind left kick panel. See Fig. 54.
C752 (Blue, 6 Pin)	In driver door. See Fig. 133.
C753 (Light Blue, 6 Pin)	Under left side of dash. See Fig. 117.
C761 (Gray, 3 Pin)	Under right side of dash. See Fig. 107.
C762 (Blue, 6 Pin)	In front passenger door. See Fig. 133.
C851 (Yellow, 28 Pin)	Under center of dash. See Fig. 105.
C852 (Yellow, 28 Pin)	Under center of dash. See Fig. 105.
C861 (Gray, 4 Pin)	Under front passenger seat. See Fig. 122.

Honda Odyssey EX 2004 - GROUNDS

Honda Odyssey EX 2004 GROUNDS LOCATION

Component	Location
G1	At left front of engine compartment. See Fig. 21.
G2	At right front of engine compartment. See Fig. 19.
G51	Left rear of vehicle. See Fig. 89.
G101	At left side of engine compartment. See Fig. 33.
G151	On transaxle housing. See Fig. 115.
G201	At right side of engine compartment. See Fig. 17.
G301	At left rear of engine compartment. See Fig. 26.
G302	At left rear of engine compartment. See Fig. 23.
G303	Behind left kick panel. See Fig. 53.
G401	Under left side of dash. See Fig. 39.
G501	Behind left kick panel. See Fig. 49.
G502	Under center of dash. See Fig. 58.
G503	Behind right side of dash. See Fig. 65.
G551	At left "B" pillar. See Fig. 76.
G552	Behind left quarterpanel. See Fig. 88.
G581	At right "B" pillar. See Fig. 77.
G582	Behind right quarterpanel. See Fig. 93.
G851	Under center of dash. See Fig. 105.