Suzuki WagonR+ RB310 Service Manual page 733

6-2-162 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
Table B-7 Radiator Fan Control System Check
BLK/YEL
1
80A 20A 30A
E23
7 6 5 4
17 16 15 14 13 12
27 26 25 24 23 22
34 33 32
1. Relay box
2. Main relay
Troubleshooting
Step
1 DTC Check
Is there DTC(s) ETC sensor circuit (DTC
P0117/P0118) and/or radiator fan circuit (DTC
P0480) displayed?
2 Radiator Fan Motor Check
1) Disconnect negative cable at battery.
2) Disconnect connector from ECT sensor.
3) Connect negative cable to battery.
Does radiator fan motor rotate at ignition switch
turned ON?
3 Main Fuse Check
1) Turn ignition switch to OFF position.
2) Remove main fuse from relay box.
Is main (30 A) fuse in good condition?
4 Radiator Fan Motor Circuit Check
1) Remove radiator fan relay from relay box.
2) Measure voltage between "BLK/YEL" wire
terminal of radiator fan relay connector and
vehicle body ground.
Is voltage 10 – 14 V?
2
BLK/YEL
BLK/RED
BLK/YEL
BLK/RED
3
BLK/YEL BLU/RED
5
E22
3 2 1 7 6 5 4 3
11 10 9 8 19 18 17 16 15 14 13 12
21 20 19 18 27 26 25 24
31 30 29 28 35 34 33 32
3. Radiator fan relay
4. Radiator fan motor
Action
6
BLU/BLK
E23-15
BLK/RED E21-6
BLK/RED E21-5
BLU
E21-4
4 BLK
YEL/GRN E22-16
E22-28
BRN/WHT
E21
2 1 6 5 4 3
11 10 9 8 16 15 14 13 12 11 10 9
23 22 21 20 27 26 25 24 23 22 21 20
31 30 29 28 35 34 33 32 31
5. ECT sensor
6. ECM
Yes
Go to corresponding DTC
diag. flow table.
System is in good condi-
tion.
Go to Step 4.
Go to Step 5.
E22-1
12V 5V
E23-2
E23-1
2 1
7
8
19 18 17
30 29 28
Go to Step 2.
Go to Step 3.
Replace main fuse.
"BLK/YEL" wire open or
high resistance circuit.
BLK
BLK/YEL
BLK/YEL
No