Suzuki 2006 SX4 Service Manual page 146

1A-102 Engine General Information and Diagnosis:
DTC Troubleshooting
Step
1 Was "Engine and Emission Control System Check"
performed?
2 Wire harness check
1) Turn ignition switch to OFF position.
2) Check for proper terminal connection to A/C condenser
cooling fan relay and ECM connectors.
3) If connections are OK, recheck DTC.
Is DTC P0481 detected again?
3 Circuit fuse check
1) Check "A/C" fuse (1) in fuse box No.2 with ignition switch
turned OFF.
Is "A/C" fuse in good condition?
4 A/C condenser fan control circuit voltage check
1) Turn ignition switch to OFF position.
2) Disconnect connectors from ECM.
3) Turn ignition switch ON position.
4) Check that A/C condenser cooling fan relay control
circuit voltage is battery voltage between ECM
connector and vehicle body ground.
Is it in good condition?
5 A/C condenser fan control circuit voltage check
1) Turn ignition switch to OFF position.
2) Remove A/C condenser cooling fan relay.
3) Turn ignition switch ON position.
4) Check that A/C condenser cooling fan relay power
supply voltage is battery voltage between A/C
condenser cooling fan relay connector and vehicle body
ground.
Is it in good condition?
6 A/C condenser fan relay check
1) Check A/C condenser cooling fan relay for operation
referring to "Radiator Cooling Fan Relay Inspection in
Section 1F".
Is it in good condition?
Action
1
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
I7RW01110068-01
Substitute a known-
good ECM and recheck.
Go to Step 6.
Repair or replace
control circuit of A/C
condenser cooling fan
relay. If circuit is OK,
substitute a known-
good ECM and recheck.
No
Go to "Engine and
Emission Control
System Check".
Intermittent trouble.
Check for short in
circuits connected to
this fuse.
Go to Step 5.
Repair or replace power
supply circuit of A/C
condenser cooling fan
relay.
Replace A/C condenser
cooling fan relay.