ELECTRICAL COMPONENT LOCATOR - CRX 1991 HONDA ELECTRICAL COMPONENTS

Honda Civic CRX 1991 - BUZZERS, RELAYS & TIMERS

Honda Civic CRX 1991 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Compressor Clutch Relay	On bracket, 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	On bracket, 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	In integrated control unit on passenger side fuse/relay box.
PGM-FI Main Relay	Behind left side of dash, above kick panel. See Fig. 3 .
Rear Window Defogger Relay	In passenger compartment fuse/relay box. See Fig. 3 .
Starter Relay	Left side of instrument panel, near kick panel. See Fig. 2 .
Sun Roof Relay	On rear of passenger compartment fuse/relay box. See Fig. 3 .
Turn Signal/Hazard Relay	In passenger compartment fuse/relay box. See Fig. 3 .

Honda Civic CRX 1991 - CIRCUIT PROTECTION DEVICES

Honda Civic CRX 1991 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 CRX 1991 - CONTROL UNITS

Honda Civic CRX 1991 CONTROL UNITS LOCATION

Component	Location
Auto. 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	Behind center of dash, right of heater assembly.
Electric Load Detector (ELD) Unit
DX Models	In engine compartment fuse/relay box, above shock tower. See Fig. 4 .
HF Models	In engine compartment fuse/relay box, above shock tower. See Fig. 5 .
Si Models	In engine compartment fuse/relay box, above shock tower. See Fig. 6 .
Engine Compartment	In engine compartment fuse/relay box, above shock tower. See Fig. 1 .
Integrated Control Unit	On passenger compartment fuse/relay box. See Fig. 3 .
Interlock Control Unit	Under driver's seat.
PGM-FI Electronic Control Unit
Right Front Floor	Under front floor panel carpeting on passenger's side. See Fig. 7 .
View of Dashboard	Under front floor panel carpeting on passenger's side. See Fig. 3 .

Honda Civic CRX 1991 - SENDING UNITS & SENSORS

Honda Civic CRX 1991 SENDING UNITS & SENSORS LOCATION

Component	Location
Atmospheric Pressure Sensor	Behind right side of dash, on kick panel. See Fig. 7 .
Coolant Temperature Sensor
View of Engine Cooling Sending Unit & Sensors	On front of engine, below distributor. See Fig. 8 .
DX Models	On front of engine, below distributor. See Fig. 4 .
HF Models	On front of engine, below distributor. See Fig. 5 .
Si Models	On front of engine, below distributor. See Fig. 6 .
Cooling Fan Coolant Temperature Sensor	On cylinder block, front of oil filter (2-pin connector). See Fig. 8 .
EGR Valve Lift Sensor
DX Models	Mounted on top of EGR valve. See Fig. 4 .
HF Models	Mounted on top of EGR valve. See Fig. 5 .
Fuel Gauge Sending Unit	Top of fuel tank, under access cover below rear seat.
Intake Air Temperature (HF & Si)
DX Models	Mounted on intake manifold. See Fig. 4 .
HF Models	Mounted on intake manifold. See Fig. 5 .
Si Models	Mounted on intake manifold. See Fig. 6 .
MAP Sensor
DX	Right rear corner of engine compartment, on firewall. See Fig. 4 .
HF & Si
Si Models	On right rear corner of engine compartment, on firewall. See Fig. 6 .
View of Solenoid Valves	On right rear corner of engine compartment, on firewall. See Fig. 9 .
Oil Pressure Sending Unit	On cylinder block, rear of oil filter, (1-wire connector).
TDC/Crank Sensor
DX Models	In distributor. See Fig. 4 .
HF Models	In distributor. See Fig. 5 .
Si Models	In distributor. See Fig. 6 .
Temperature Gauge Sending Unit	On front of engine, below distributor. See Fig. 8 .
Throttle Angle Sensor
DX Models	Mounted on throttle body. See Fig. 4 .
HF Models	Mounted on throttle body. See Fig. 5 .
Si Models	Mounted on throttle body. See Fig. 6 .

Honda Civic CRX 1991 - MOTORS

Honda Civic CRX 1991 MOTORS LOCATION

Component	Location
Blower Motor	Behind glove box, in blower motor housing.
Condenser Fan Motor	Behind left side of radiator.
Function Control Motor	Center of instrument panel, left side of heater assembly housing.
Radiator Fan Motor	Behind right side of radiator.
Recirculation Control Motor	Behind glove compartment, on end of evaporator housing.
Sun Roof Motor	Mounted in center of roof panel.
Windshield Washer Motor (Front & Rear)	Bottom of washer reservoir, in left front of engine compartment.
Wiper Motor
Front	On right rear of engine compartment, on firewall.
Rear	In center of rear hatch, below rear window.

Honda Civic CRX 1991 - SOLENOIDS & SOLENOID VALVES

Honda Civic CRX 1991 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
EGR Control Solenoid
DX Models	In emission control box, on right side of firewall. See Fig. 4 .
HF Models	In emission control box, on right side of firewall. See Fig. 5 .
View of Solenoid Valves	In emission control box, on right side of firewall. See Fig. 9 .
Electronic Air Control Valve (EACV)
DX Models	On top rear of engine, on intake manifold. See Fig. 4 .
HF Models	On top rear of engine, on intake manifold. See Fig. 5 .
Si Models	On top rear of engine, on intake manifold. See Fig. 6 .
Fast Idle Control Solenoid (HF & Si)	On intake manifold, near brake master cylinder. See Fig. 6 .
Gearshift Lock Solenoid	Mounted on driver's side of gearshift assembly.
Key Interlock Solenoid	Attached to ignition switch assembly.
Lock-Up Control Solenoid (A/T)	Mounted on top of transaxle. See Fig. 4 .
Purge Cut-Off Solenoid Valve
DX	Right rear corner of engine compartment on firewall. See Fig. 4 .
HF & Si
HF Models	In emission control box, on firewall. See Fig. 5 .
Si Models	In emission control box, on firewall. See Fig. 6 .
View of Solenoid Valves	In emission control box, on firewall. See Fig. 9 .
Seat Belt Retractor Solenoid	In seat belt retractor.
Shift Lock Solenoid	Under floor console, forward of gear selector lever.
Tandem Valve Control Solenoid (DX)	Above throttle body, on air intake chamber. See Fig. 4 .

Honda Civic CRX 1991 - SWITCHES

Honda Civic CRX 1991 SWITCHES LOCATION

Component	Location
A/C Dual Pressure Switch	In-line at right front corner of engine compartment, near condenser.
A/C Thermoswitch	Behind glove box, on evaporator housing. See Fig. 10 .
Back-Up Light Switch	On top of transaxle, near starter motor.
Brake Fluid Level Switch	Below master cylinder reservoir cap.
Brake Switch	On bracket, above brake pedal.
Clutch Switch	On bracket, above clutch pedal.
Coolant Temperature Switch	On lower rear of engine, near oil filter.
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 driver's seat belt buckle.
Shift Position Console Switch	Mounted on right side of gear selector lever.

Honda Civic CRX 1991 - MISCELLANEOUS

Honda Civic CRX 1991 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor Thermal Protector	Mounted on top of A/C compressor housing.
A/C Diodes	Behind right side of dash, under carpet, taped to wiring harness.
Blower Motor Resistor	Behind glove box, on blower motor housing. See Fig. 11 .
Emission Control Box
DX Models	Right rear corner of engine compartment on firewall. See Fig. 4 .
HF Models	Right rear corner of engine compartment on firewall. See Fig. 5 .
Ignition Timing Adjusting Connector	Under right side of dash, near kick panel.
Injector Resistor
HF Models	Left rear corner of engine compartment. See Fig. 5 .
Si Models	Left rear corner of engine compartment. See Fig. 6 .
Noise Suppressor	On left front of engine compartment, behind radiator.