ELECTRICAL COMPONENT LOCATOR - CRX 1990 HONDA ELECTRIC COMPONENT LOCATOR

Honda Civic EX 1990 - BUZZERS, RELAYS & TIMERS

Honda Civic EX 1990 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Clutch Relay	In right front corner of engine compartment. See Fig. 1 .
Cigarette Lighter Relay	Behind center on instrument panel, on console bracket. See Fig. 2 .
Condenser Fan Relay	In right front corner of engine compartment. See Fig. 1 .
Cooling Fan Relay	In right front corner of engine compartment. See Fig. 1 .
Intermittent Wiper Relay	Incorporated in integrated control unit on fuse/relay box on left of instrument panel.
PGM-FI Main Relay	Behind driver's side of instrument panel, above kick panel. See Fig. 3 .
Rear Window Defogger Relay	In fuse/relay box below left side of instrument panel. See Fig. 4 .
Starter Relay	Left side of instrument panel, near kick panel. See Fig. 2 .
Sun Roof Relay	On rear of fuse/relay box on left side of instrument panel, next to integrated control unit. See Fig. 3 .
Turn Signal/Hazard Relay	In fuse/relay box below left side of instrument panel. See Fig. 3 .

Honda Civic EX 1990 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Fuse/Relay Box
Engine Compartment	Right rear corner of engine compartment, above strut tower. See Fig. 1 .
Passenger Compartment	Below left side of instrument panel. See Fig. 3 .

Honda Civic EX 1990 CONTROL UNITS LOCATION

Component	Location
Automatic Shoulder Seat Belt Control Unit	Behind center of instrument panel, on heater assembly. See Fig. 2 .
Dash Light Brightness Control Unit	Behind instrument panel, on right side of steering column. See Fig. 2 .
Dash Light Brightness Controller	Left side of instrument panel. See Fig. 3 .
Electric Load Detector (ELD) Unit	Incorporated in fuse/relay block at right rear of engine compartment, above shock tower. See Fig. 1 , Fig. 5 , Fig. 6 & Fig. 7 .
Integrated Control Unit	On fuse/relay block behind left side of instrument panel. See Fig. 3 .
Interlock Control Unit	Under driver's seat.
PGM-FI Electronic Control Unit	Under front floor panel carpeting on passenger's side. See Fig. 3 & Fig. 8 .

Honda Civic EX 1990 SENDING UNITS & SENSORS LOCATION

Component	Location
Atmospheric Pressure Sensor	Behind right side of instrument panel, on kick panel. See Fig. 8 .
Coolant Temperature Gauge	On front of engine, below distributor. See Fig. 5 , Fig. 6 , Fig. 7 & Fig. 9 .
Cooling Fan Coolant Temperature Sensor	On cylinder block, in front of oil filter and contains a 2-pin connector. See Fig. 9 .
EGR Valve Lift Sensor	On top of EGR valve. See Fig. 5 & Fig. 6 .
Fuel Guage Sending Unit	Top of fuel tank, under access cover below rear seat.
Intake Air Temperature Sensor	Mounted on intake manifold. See Fig. 5 - Fig. 7 .
Manifold Absolute Pressure (MAP) Sensor
DX (1.5L Calif. With A/T)	In control box, at right corner of engine compartment on firewall. See Fig. 5 & Fig. 10 .
DX (Exc. 1.5L Calif. With A/T)	Right rear corner of engine compartment on firewall. See Fig. 5 .
HF	In control box, at right corner of engine compartment on firewall. See Fig. 10 .
Si	Right rear corner of engine compartment on firewall. See Fig. 7 .
Oil Pressure Sending Unit	On cylinder block, near oil filter, contains single wire connector.
Oxygen Sensor	Mounted in exhaust manifold. See Fig. 5 - Fig. 7 .
TDC/Crank Sensor	In distributor. See Fig. 5 - Fig. 7 .
Temperature Gauge Sending Unit	On front of engine, below distributor. See Fig. 9 .
Throttle Angle Sensor	On throttle body. See Fig. 5 - Fig. 7 .

Honda Civic EX 1990 MOTORS LOCATION

Component	Location
Blower Motor	Behind glove box in blower motor housing.
Condenser Fan Motor	Behind radiator on driver's side.
Fuel Pump	In fuel tank, under access cover below rear seat.
Function Control Motor	Center of instrument panel, left side of heater assembly housing.
Radiator Fan Motor	Behind radiator on passenger's side.
Rear Window Washer Motor	Bottom of windshield washer bottle in left front corner of engine compartment.
Rear Wiper Motor	In center of rear hatch, below rear window.
Sun Roof Motor	Mounted in center of roof panel.
Windshield Washer Motor	Bottom of washer bottle in left front corner of engine compartment.
Windshield Wiper Motor	In right rear corner of engine compartment, on firewall.

Honda Civic EX 1990 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
EGR Control Solenoid Valve
DX (1.5L Calif. With A/T)	In control box at right corner of engine compartment. See Fig. 5 & Fig. 10 .
HF	In control box at right corner of engine compartment on firewall. See Fig. 6 & Fig. 10 .
Electronic Air Control Valve (EACV)	Mounted on intake manifold. See Fig. 5 - Fig. 7
Fast Idle Solenoid Valve (Si Models)	On intake manifold, near brake master cylinder. See Fig. 7 .
Gearshift Lock Solenoid	Mounted on driver's side of gearshift assembly.
Key Interlock Solenoid	Attached to ignition switch assembly.
Lock-Up Control Solenoid Valve	Mounted on top of transaxle. See Fig. 5 .
Purge Cut-Off Solenoid Valve
DX (1.5L Calif. With A/T)	In control box at right corner of engine compartment on firewall. See Fig. 5 & Fig. 10 .
DX (Exc. 1.5L Calif. With A/T)	Right rear corner of engine compartment on firewall. See Fig. 5 .
HF	In control box at right corner of engine compartment on firewall. See Fig. 6 & Fig. 10 .
Si	Right rear corner of engine compartment on firewall. See Fig. 7 .
Seat Belt Retractor Solenoid	In seat belt retractor.
Tandem Valve Control Solenoid Valve (DX Models)	Above throttle body, on air intake chamber. See Fig. 5 .

Honda Civic EX 1990 SWITCHES LOCATION

Component	Location
A/C Dual Pressure Switch	In line at right front corner of engine compartment, near condenser.
A/C Termostat Switch	Behind glove box, on evaporator housing. See Fig. 11 .
Back-Up Light Switch	On top of transaxle, near starter motor.
Brake Fluid Level Switch	On top of master cylinder.
Brake Switch	Near top of brake pedal.
Clutch Switch	Located at top of clutch pedal.
Door Latch Switch	Mounted in door, just below latch assembly.
Hatch Lid Switch	Below hatch door, on latch assembly.
Key Interlock Switch	Attached to ignition switch assembly.
Parking Brake Switch	Mounted near base of parking brake lever.
Seat Belt Retractor Sensor Switch	In seat belt retractor.
Seat Belt Switch	In seat belt buckle.
Shift Position Console Switch	Mounted on lower side of gearshift on passenger's side.
Sun Roof Tilt-Up Switch	Left rear corner of roof panel.

Honda Civic EX 1990 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor Thermal Protector	Mounted on outside of A/C compressor case.
A/C Diodes	Below right hand side of dash, under carpet.
Blower Motor Resistor	Behind glove box, on blower motor housing. See Fig. 12 .
Control Box	Right rear corner of engine compartment on firewall. See Fig. 5 & Fig. 6 .
Injector Resistor	Left rear corner of engine compartment. See Fig. 6 & Fig. 7 .