Integra L4-1590cc 1.6L DOHC FI (1987)
Radiator Cooling Fan Control Module: Testing and Inspection
Fig. 23 Fan Timer Unit Test
1.
Perform tests with fan timer connected and ignition switch On.
2.
Refer to Fig. 23. for fan timer terminals.
3.
Check for voltage between terminal 4 and body ground, one volt or less should be indicated, if not as indicated, repair open to body ground.
4.
Check terminal No. 6 for battery voltage, voltage should be indicated, if not check fuse 20, if ok, repair open in white wire.
5.
Check terminal No. 7 for battery voltage with ignition switch On, voltage should be indicated, if not check fuse 24, if ok, repair open in BLK/YEL
wire.
6.
Check terminal No. 4 for battery voltage with ignition switch On, voltage should be indicated, if not check fuse 21, if ok, repair open in YEL/BLK
wire.
7.
Check terminal No. 1 for battery voltage, voltage should be indicated, if not replace fan timer unit, before connecting new timer check continuity
between YEL/WHT wire and ground. If continuity is indicated, do not connect new timer as damage will occur.
8.
Connect terminal No. 6 to body ground, condenser fan relay should come on, if not check for open in BLU/RED between fan timer and condenser
fan relay, if ok, check for open between YEL/WHT and BLK/YEL wires, if ok, test condenser fan.
9.
Check terminal No. 5 for battery voltage, with oil temperature below 108°C, about 11 volts should be indicated, if not, faulty oil temperature
switch, short to body ground or faulty fan timer unit are indicated.
