Suzuki Liana RH418 Supplementary Service Manual page 115

Step
1 Check wire circuit
1) Disconnect radiator fan control relay No.1 (1) from relay
box with ignition switch turned OFF.
2) Turn ON ignition switch, measure voltage between each
engine ground to "BLK/WHT" and "BLU/WHT" wire
terminal.
1
2. Radiator fan relay No.2
3. Radiator fan relay No.3
Is voltage 10 – 14 V?
2 Check wire circuit
1) Connect radiator fan control relay No.1 to relay box with
ignition switch turned OFF.
2) Turn ON ignition switch, measure voltage between
vehicle body ground and "G04-18" terminal wire.
Is voltage 10 – 14 V?
3 Check wire circuit
1) Disconnect connector from ECM with ignition switch
turned OFF.
2) Disconnect radiator fan control relay No.1 from relay
box.
3) Measure resistance between "G04-18" terminal wire and
vehicle ground.
Is resistance infinity?
4 Check wire circuit
1) Turn ON ignition switch.
2) Check voltage between "G04-18" terminal wire and
vehicle body ground.
Is voltage 0 V?
Action
3
Engine General Information and Diagnosis:
Yes
Go to Step 2.
2
I2RH01110116-01
Go to Step 6.
I2RH0B110063-01
Go to Step 4.
Go to Step 5.
1A-102
No
"BLK/WHT" and/or
"BLU/WHT" wire open
circuit.
Go to Step 3.
"BRN" wire shorted to
ground circuit.
"BRN" wire shorted to
power supply circuit.