Suzuki 2006 SX4 Service Manual page 143

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 radiator cooling
fan relay (No.1, No.2 or No.3) and ECM connectors.
3) If connections are OK, recheck DTC.
Is DTC P0480 detected again?
3 Circuit fuse check
1) Check "RDTR" fuse (1) in fuse box No.2 with ignition
switch turned OFF.
Is "RDTR" fuse in good condition?
4 Radiator cooling 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 radiator cooling fan relay (No.1, No.2 or
No.3) control circuit voltage is battery voltage between
ECM connector and vehicle body ground.
Is it in good condition?
Action
1
Engine General Information and Diagnosis:
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
I7RW01110065-01
Substitute a known-
good ECM and recheck.
1A-99
No
Go to "Engine and
Emission Control
System Check".
Intermittent trouble.
Check for short in
circuits connected to
this fuse.
Go to Step 5.