Suzuki Liana RH418 Supplementary Service Manual page 110

1A-97 Engine General Information and Diagnosis:
Step
9 Check A/C compressor control relay
1) Turn ignition switch OFF and remove A/C compressor
control relay (1).
2) Check for proper connection to relay at terminals "c" and
"d".
3) If OK, check that there is continuity between "c" and "d"
when battery is connected to terminals "a" and "b".
"b"
Is check result satisfactory?
10 Check A/C compressor circuit
1) Disconnect connector from A/C compressor with ignition
switch at OFF position.
2) Check voltage at A/C compressor harness under each
condition given as follows.
Voltage at A/C compressor harness
While engine running, A/C switch OFF: 0 V
While engine running, A/C switch ON: 10 – 14 V
Is check result satisfactory?
Action
"c"
"a"
1
c d
a
b
"d"
1
Yes
Go to Step 10.
I2RH01110157-01
Check A/C compressor
referring to
"Compressor
Inspection: Manual
Type in Section 7B in
related manual" and
"Compressor
Inspection: Automatic
Type in Section 7B in
related manual".
No
Replace A/C
compressor control
relay.
"WHT" wire open or
short.