Suzuki Wagon R Manual page 2166

Step
5 Check Radiator Fan Relay
1) Check radiator fan relay referring to "Main
Relay, Fuel Pump Relay and Radiator Fan
Relay Inspection" in Section 6E2.
Is it in good condition?
6 Radiator Fan Control Circuit Check
1) Disconnect radiator fan motor connector.
2) Measure resistance between "BLU/RED"
wire terminal of radiator fan motor connec-
tor and "BLU/RED" wire terminal of radiator
fan relay connector.
Is resistance 1 Ω
7 Radiator Fan Control Circuit Check
1) Measure resistance between "BLU/RED"
wire terminal of radiator fan motor connec-
tor and vehicle body ground.
Is it infinite?
8 Radiator Fan Control Circuit Check
1) Turn ON ignition switch.
2) Measure voltage between "BLU/RED" wire
terminal of radiator fan motor connector and
vehicle body ground.
Is voltage 0 V?
9 Radiator Fan Control Circuit Check
1) Measure resistance between "BLK" wire ter-
minal of radiator fan motor connector and
vehicle body ground.
Is resistance 1 Ω
Action
or less?
or less?
ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE) 6-2-163
Yes
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
Replace radiator fan
motor.
No
Replace radiator fan relay.
"BLU/RED" wire circuit
open or poor connection.
"BLU/RED" wire circuit
shorted to ground.
"BLU/RED" wire shorted
to power circuit.
"BLK" wire open or high
resistance circuit.