COMPONENT TESTS
Note. For wiring circuit information, see WIRING DIAGRAMS . Some wires have been assigned a superscript to distinguish them from other wires of the same color. For example, Yellow/Green(1) wire is not the same as Yellow/Green(2) wire.
Note. For more extensive cooling fan system testing procedures, see appropriate MANUAL A/C-HEATING SYSTEMS article.
Some models use 2 fan switches to operate engine cooling fans. Some models use one fan switch to operate engine cooling fans. Some models use Engine Coolant Temperature (ECT) sensor and engine oil temperature sensor to operate engine cooling fans. Some models also use a radiator fan control module. See WIRING DIAGRAMS for component usage and locations.
FAN MOTOR
Disconnect 2-pin connector from fan motor. Connect battery power to either fan motor terminal. Connect ground to other fan motor terminal. If fan motor does not operate, replace motor.
RELAYS
- Remove radiator and condenser fan relays. On Accord and Prelude, condenser fan relay is located behind left side of front bumper, and radiator fan relay is located inside underhood relay box. On Civic and Civic Del Sol, radiator fan relay is located on right front inner fender, and condenser fan relay is located on left front inner fender (if equipped). On Odyssey, condenser fan relay is mounted on top of condenser, and radiator fan relay is located inside underhood relay box.
- On all models, connect positive battery power to relay terminal "C" and connect terminal "D" to ground. (Scheme 2) Continuity should be present between relay terminals "A" and "B". No continuity should be present when battery power is disconnected.
Scheme 2
Electric Cooling Fan System Wiring Diagram (1997 Accord 2.2L With A/C). Scheme 3
Scheme 3: Electric Cooling Fan System Wiring Diagram (1997 Accord 2.2L With A/C)
Electric Cooling Fan System Wiring Diagram (1997 Accord 2.2L Without A/C). Scheme 4
Scheme 4: Electric Cooling Fan System Wiring Diagram (1997 Accord 2.2L Without A/C)
Electric Cooling Fan System Wiring Diagram (1997 Accord 2.7L). Scheme 5
Scheme 5: Electric Cooling Fan System Wiring Diagram (1997 Accord 2.7L)
Electric Cooling Fan System Wiring Diagram (1997-98 Civic). Scheme 6
Scheme 6: Electric Cooling Fan System Wiring Diagram (1997-98 Civic)
Electric Cooling Fan System Wiring Diagram (1997 Civic Del Sol With A/C). Scheme 7
Scheme 7: Electric Cooling Fan System Wiring Diagram (1997 Civic Del Sol With A/C)
Electric Cooling Fan System Wiring Diagram (1997 Civic Del Sol Without A/C). Scheme 8
Scheme 8: Electric Cooling Fan System Wiring Diagram (1997 Civic Del Sol Without A/C)
Electric Cooling Fan System Wiring Diagram (1997 CR-V). Scheme 9
Scheme 9: Electric Cooling Fan System Wiring Diagram (1997 CR-V)
Electric Cooling Fan System Wiring Diagram (1997 Odyssey). Scheme 10
Scheme 10: Electric Cooling Fan System Wiring Diagram (1997 Odyssey)
Electric Cooling Fan System Wiring Diagram (1997-98 Prelude). Scheme 11
Scheme 11: Electric Cooling Fan System Wiring Diagram (1997-98 Prelude)
Electric Cooling Fan System Wiring Diagram (1998 Accord 2.3L). Scheme 12
Scheme 12: Electric Cooling Fan System Wiring Diagram (1998 Accord 2.3L)
Electric Cooling Fan System Wiring Diagram (1998 Accord 3.0L). Scheme 13
Scheme 13: Electric Cooling Fan System Wiring Diagram (1998 Accord 3.0L)
Electric Cooling Fan System Wiring Diagram (1998 CR-V). Scheme 14
Scheme 14: Electric Cooling Fan System Wiring Diagram (1998 CR-V)