Suzuki SY413 Service Manual page 2714

TABLE B-9 A/C CONDENSER FAN CONTROL SYSTEM CHECK
Ignition
switch
INSPECTION
STEP
1 Check A / C Condenser Fan Control System.
Is A / C cooling fan started when A / C switch and heater
blower switch turned ON?
2 Check A / C Condenser Fan Control Relay and Its Circuit.
1) Turn ignition switch ON.
2) Check for voltage at terminal E92-9 of ECM (PCM) con-
nector connected, under following condition.
When A/C switch turns OFF: 10 – 14 V
Is voltage as specified?
3 Check A / C Condenser Fan Control Relay.
1) Turn ignition switch OFF and remove A / C condenser
fan control 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 operation.
See Fig. 3.
Is it in good condition?
ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC) 6-1-115
Relay box
Condenser fan
motor relay
ACTION
ECM
(PCM)
M
A/C amplifier
YES
A/ C condenser fan
control system is in
good condition.
Intermittent trouble
or faulty ECM
(PCM).
Check for intermit-
tent referring to "In-
termittent and Poor
Connection" in
Section 0A.
Go to Step 4.
"R / Bl" or "B" circuit
open.
NO
Go to Step 2.
Go to Step 3.
Replace A / C con-
denser fan Control
relay.
Replace A / C con-
denser fan motor.