Suzuki Liana RH413 Service Manual page 143

Step
5 Check wire circuit
1) Turn ON ignition switch.
2) Check voltage between "G04-18" terminal wire and
vehicle body ground.
Is voltage 0 V?
6 Check radiator fan control relay No.1
1) Check radiator fan control relay No.1, referring to
"Radiator Fan Relay No.1, No.2 and No.3 Inspection in
Section 1C".
Is result in good condition?
7 Check radiator fan control No.1
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Run engine at ECT is over 97 °C, 207 °F.
3) Measure voltage between vehicle body ground and
"G04-18" terminal wire.
Is voltage lower 1.5 V?
8 Check radiator fan control
1) Disconnect radiator fan control relay No.2 (2), and No.3
(3) from relay box with ignition switch turned OFF.
2) Run engine at ECT is over 97 °C, 207 °F.
3) Measure voltage between vehicle body ground and each
"BLU/RED" wire terminal.
1
1. Radiator fan relay No. 1
Is voltage lower 10 – 14 V?
9 Check wire circuit
1) Disconnect connector from ECM with ignition switch
turned OFF.
2) Connect radiator fan control relay No.2 to relay box.
3) Turn ON ignition switch, measure voltage between
vehicle body ground and "G04-3" terminal wire.
Is voltage 10 – 14 V?
10 1) Disconnect radiator fan control relay No.2 and then
connect radiator fan control relay No.3 to relay box.
2) Turn ON ignition switch, measure voltage between
vehicle body ground and "G04-3" terminal wire.
Is voltage 10 – 14 V?
Action
3
Engine General Information and Diagnosis:
Yes
Go to Step 6.
"BRN" wire open circuit. Replace relay.
Go to Step 8.
Go to Step 9.
2
I2RH01110116-01
Go to Step 10.
Go to Step 14.
1A-92
No
"BRN" wire shorted to
power supply circuit.
Faulty ECM.
"BLU/RED" wire open
circuit.
Go to Step 11.
Go to Step 11.