Radiator Fan Control Circuit Check - Suzuki Liana RH418 Supplementary Service Manual

1A-101 Engine General Information and Diagnosis:
Step
9 Check radiator fan control No.3
1) Connect radiator fan control relay No.3 to relay box with
ignition switch turn OFF.
2) Run engine until ECT is over 102 °C, 216 °F.
3) Measure resistance between vehicle body ground and
"BLU" wire terminal in radiator fan harness connector.
Is resistance below 2
10 Check radiator fan control No.1
1) Disconnect connector from radiator fan with ignition
switch turn OFF.
2) Run engine until ECT is over 97 °C, 207 °F.
3) Measure voltage between vehicle body ground and
"BLU/RED" wire terminal in radiator fan harness
connector.
Is voltage 10 – 14 V?
11 Check radiator cooling fan
1) Check radiator cooling fan referring to "Radiator Cooling
Fan On-Vehicle Inspection in Section 1F in related
manual".
Is it good condition?

Radiator Fan Control Circuit Check

Wiring Diagram
BATT
80A
C41 (31P)
9 8 7 6 5 4
21 20 19 18 17 16 15
31 30 29 28 27
1. Radiator fan relay No.1
2. Radiator fan relay No.2
Action
Ω
?
30A
60A
7
BLK
ST
ACC
ON
6
IG
15A
BLK/WHT
BLU/WHT
G04 (24P)
3 2 1
7 6 5 4 3
14 13 12 11 10
16 15 14 13 12 11
26 25 24 23 22
24 23 22 21 20
3. Radiator fan relay No.3
4. Radiator fan motor
Go to Step 11.
Go to Step 11.
"BLK" wire in radiator
fan harness connector
open circuit.
1
5
BLU/RED
BLU/RED
+
H
BLU/BLK
2
BLU
BLK 3
G03 (17P)
2 1 6 5 4 3 2 1
12 11 10 9 8 7
10 9 8
19 18 17 17 16 15 14 13
5. Main fuse
6. Circuit fuse box
Yes
"BLU" wire is open
circuit or high resistance
in circuit.
"BLU/RED" wire open
circuit.
Faulty radiator cooling
fan.
ECM
BRN G04-18
4
+
L
L-
BLK
H-
GRN/RED G04-3
C41-1
BLK/ORN
BLK
C41-3
7. Ignition switch
No
S3RH0B1104058
I3RH0A110023-01