Suzuki Ignis Service Manual page 3344

Step
5 Check Relay Circuit
1) Disconnect connectors from ECM with igni-
tion switch turned OFF.
2) Remove A/C condenser fan relay No.1 and
No.2.
3) Measure voltage between each "C64-12"
and "C64-5" wire terminals of ECM connec-
tor and vehicle body ground with ignition
switch turned ON.
Is each voltage 0 V?
6 A/C Condenser Fan Control Signal Check
1) Connect connectors to ECM with ignition
switch turned OFF.
2) Install A/C condenser fan relay No.1 and
No.2.
3) Operate A/C system after an engine run-
ning.
4) Measure voltage between each "C64-12"
and "C64-5" wire terminal of ECM connector
and vehicle body ground.
Is each voltage about 0 V?
7 Check Relay Circuit
1) Disconnect connectors from ECM with igni-
tion switch turned OFF.
2) Remove A/C condenser fan relay No.1 and
No.2.
3) Check for proper connection to "C64-12"
and "C64-5" wire terminals of ECM connec-
tor, "PNK" wire terminal of A/C condenser
fan relay No.1 connector and "GRN/YEL"
wire terminal of A/C condenser fan relay
No.2 connector.
4) If OK, measure resistance between "C64-
12" wire terminal of ECM connector and
"PNK" wire terminal of A/C condenser fan
relay No.1 connector and "C64-5" wire ter-
minal of ECM connector and "GRN/YEL"
wire terminal of A/C condenser fan relay
No.2 connector.
Is each resistance 1 Ω or less?
8 Check Relay Circuit
1) Measure resistance between each "C64-12"
and "C64-5" wire terminals of ECM connec-
tor and vehicle body ground.
Is each resistance infinite?
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-143
Yes
Go to Step 6.
System is in good condi-
tion.
Go to Step 8.
Go to Step 9.
No
"PNK" and "GRN/YEL"
wire shorted to power cir-
cuit.
Substitute a known-good
ECM and recheck.
"PNK" and "GRN/YEL"
wire in open or high resis-
tance circuit.
"PNK" and "GRN/YEL"
wire shorted to ground cir-
cuit.