Suzuki SY413 Service Manual page 2827

6-2-110 ENGINE GENERAL INFORMATION AND DIAGNOSIS (J18 ENGINE WITH WU TWC)
TABLE B-9 A/C CONDENSER FAN CONTROL SYSTEM
INSPECTION
STEP
1 Check A / C Condenser Fan Control System.
Is A / C condenser fan started when A / C is operating?
2 A/C Condenser Fan Relay and its Circuit Check
1) Turn ignition switch ON.
2) Check for voltage at terminal E92-32 of ECM connec-
tor connected, under the following condition.
When A/C is not operating and engine coolant temp. is
lower than 1055C, 2215F:
When A/C is operating or engine coolant temp. is
1055C, 2215F or higher:
Is voltage as satisfactory?
3 Check A / C Condenser Fan Relay.
1) Turn ignition switch OFF and remove A / C condenser
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. 1 and 2.
Is check result satisfactory?
4 Check A / C Condenser Fan.
1) Turn ignition switch OFF.
2) Disconnect A / C condenser fan motor connector.
3) Check for proper connection to motor at "R / Bl" and "B"
terminals.
4) If OK, connect battery to motor and check for opera-
tion. See Fig. 3.
Is it in good condition?
ACTION
10 – 14 V
0 – 2 V
1. Relay box
2. A/C condenser fan relay
3. A/C condenser fan motor
4. A\C control module (amplifier)
YES
A/ C condenser fan Go to Step 2.
control system is in
good condition.
Intermittent trouble Go to Step 3.
or faulty ECM.
Check for intermit-
tent referring to
"Intermittent and
Poor Connection" in
Section 0A.
Go to Step 4. Replace A / C
condenser fan relay.
"R / Bl" or "B" circuit Replace A / C
open. condenser fan
motor.
NO