Suzuki Liana RH418 Supplementary Service Manual page 109

Step
6 Check A/C condenser fan
1) Turn ignition switch OFF.
2) Disconnect A/C condenser fan motor connector (1).
3) Check for proper connection to motor at "RED/BLU" and
"BLK" terminals.
4) If OK, connect battery to motor and check for operation.
Is it in good condition?
7 Check A/C compressor control system
Is A/C compressor started when A/C switch and heater
blower switch turned ON while engine running?
8 Check A/C compressor signal
1) Check voltage at "G04-1" terminal under each condition
given as follows.
Voltage at "G04-1" terminal
While engine running, A/C switch OFF: 10 – 14 V
While engine running, A/C switch ON: 0 V
NOTE
When A/C evaporator thermistor temp. is below
2.5 °C (36.5 °F), A/C remains OFF ("G04-1"
terminal voltage becomes 10 – 14 V). This
condition is not abnormal.
Is check result satisfactory?
Action
1
I2RH01110138-01
Engine General Information and Diagnosis:
Yes
"RED/BLU" or "BLK"
circuit open.
A/C control system is in
good condition.
Go to Step 9.
1A-96
No
Replace A/C condenser
fan motor.
Go to Step 8.
"BRN/YEL" wire open or
short. Poor "G04-1"
terminal connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck. Then go to
Step 9.