Suzuki 2006 SX4 Service Manual page 183

Step
3 Check wire circuit
1) Disconnect A/C compressor control relay (1) from
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Turn ON ignition switch, measure voltage between
engine ground and "BLK/WHT" wire terminal of A/C
condenser fan control relay connector.
Is voltage 10 – 14 V?
4 Check wire circuit
1) Remove "A/C" fuse (10 A) from individual circuit fuse box
No.1 with ignition switch turned OFF.
2) Measure resistance between "BLK/WHT" wire terminal
of "A/C" fuse connector and vehicle body ground.
Is resistance infinity?
5 Check wire circuit
1) Connect A/C condenser cooling fan control relay to
individual circuit fuse box No.1 box with ignition switch
turned OFF.
2) Disconnect connectors from ECM.
3) Turn ON ignition switch, measure voltage between
vehicle body ground and "E01-58" wire terminal of ECM
connector.
Is voltage 10 – 14 V?
6 Check wire circuit
1) Disconnect A/C condenser cooling fan control relay from
individual circuit fuse box No.1 with ignition switch
turned OFF.
2) Measure resistance between "E01-58" wire terminal of
ECM connector and vehicle body ground.
Is resistance infinity?
7 Check wire circuit
1) Turn ON ignition switch.
2) Check voltage between "E01-58" wire terminal of ECM
connector and vehicle body ground.
Is voltage 0 V?
8 Check A/C condenser cooling fan control relay
1) Check A/C condenser cooling fan control relay referring
to "A/C System Relay Inspection in Section 7B".
Is result in good condition?
Action
1
I5RW0A110039-02
Engine General Information and Diagnosis:
Yes
Faulty A/C compressor
control relay.
Open wire in "BLK/
WHT" circuit. If OK, go
to Step 5.
Go to Step 9.
Go to Step 7.
Go to Step 8.
Open wire in "RED/BLK"
circuit.
1A-133
No
Go to Step 4.
"BLK/WHT" wire
shorted to ground
circuit.
Go to Step 6.
"RED/BLK" wire shorted
to ground circuit.
"RED/BLK" wire shorted
to power supply circuit.
Replace relay.