Suzuki Ignis Service Manual page 3381

6-180 ENGINE GENERAL INFORMATION AND DIAGNOSIS
Step
7 Check Condenser Fan
1) Check condenser fan referring to "Con-
denser Cooling Fan Motor On-Vehicle
Inspection" in Section 1B.
Is check result satisfactory?
8 Check A/C Compressor Control System
Is A/C compressor started when A/C and
heater blower switch turned ON while engine
running?
9 Check A/C Compressor Relay Circuit
1) Check voltage between "C64-11" wire ter-
minal of ECM connector and vehicle body
ground under the following condition.
While engine running and A/C switch OFF:
10 – 14 V
While engine running, A/C and heater
blower switch ON: 0 – 1 V
Are check result satisfactory?
10 Check A/C Compressor Relay
1) Check A/C compressor relay referring to
"Compressor Relay Inspection" in Section
1B.
Is it in good condition?
11 Check A/C Compressor Relay Circuit
1) Remove A/C compressor relay with ignition
switch turned OFF.
2) Turn ON ignition switch, check voltage
between "BLK/RED" wire terminal of A/C
compressor relay connector and vehicle
body ground.
Is voltage 10 –14 V?
12 Check A/C Compressor Relay
1) Check A/C compressor relay referring to
"Compressor Relay Inspection" in Section
1B.
Is it in good condition?
NOTE:
When A/C evaporator thermistor temp. is below 2.5°C (36.5°F), A/C remains OFF (C64-11 terminal volt-
age becomes 0 – 1 V). This condition is not abnormal.
Action Yes
A/C condenser fan drive
circuit malfunction.
If circuit OK, go to Step 8.
A/C system is in good
condition.
Go to Step 10.
Check A/C Compressor
referring to "Compressor
Relay Inspection" in Sec-
tion 1B.
Go to Step 12.
"PNK/BLK" wire circuit
open.
If OK, substitute a known-
good ECM and recheck.
No
Replace A/C condenser
fan motor.
Go to Step 9.
Go to Step 11.
Replace A/C compressor
relay.
"BLK/RED" wire circuit
open.
Replace A/C compressor
relay.