Suzuki SY413 Service Manual page 2713

6-1-114 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC)
TABLE B-8 RADIATOR FAN CONTROL SYSTEM CHECK
Ignition
switch
"RDTR"
(Radiator fan)
INSPECTION
STEP
1 Check Fan Control System.
1) Connect scan tool to DLC with ignition switch OFF.
2) Start engine and select "DATA LIST" mode on scan tool.
3) Warm up engine until coolant temp. is 98_C, 208_F or higher. (If
engine coolant temp. does not rise, check engine cooling system or
ECT sensor.) See Fig. 1.
Is radiator fan started when engine coolant temp. reached above
temp.?
2 Check Radiator Fan Relay and Its Circuit.
1) Check DTC and pending DTC with scan tool.
Is DTC P0480 displayed?
3 Check Radiator Fan Relay.
1) Turn ignition switch OFF and remove radiator cooling fan relay.
2) Check for proper connection to relay at terminals "1" and "2".
3) If OK, check that there is continuity between "1" and "2" when battery is
connected to terminals "3" and "4". See Fig. 2.
Is check result satisfactory?
4 Check Radiator Fan.
1) Turn ignition switch OFF.
2) Disconnect fan motor connector.
3) Check for proper connection to motor at "Bl/R" and "B" terminals.
4) If OK, connect battery to motor and check for operation. See Fig. 3.
Is it in good condition?
Fig.1 for Step 1
Radiator fan relay
ACTION
Fig.2 for Step 3
Radiator fan relay
Radiator fan motor
YES
Radiator fan
control system
is in good
condition.
Go to DTC
P0480 Diag.
Flow Table.
Go to Step 4.
"W", "Bl/R" or
"B" circuit
open.
Fig.3 for Step 4
Negative terminal
ECM (PCM)
NO
Go to Step 2.
Go to Step 3.
Replace ra-
diator fan
relay.
Replace ra-
diator fan
motor.
Connector lock
Positive
terminal