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Home >> Suzuki >> 2007 >> SX4 Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P0481: Fan 2 Control Circuit (Non-EVAP-Leak-Check Model) >> DTC Troubleshooting

DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action YES NO
1  Was "Engine and Emission Control System Check" performed?  Go to Step 2. Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
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 P0482 detected again? 		 Go to Step 3. Intermittent trouble.
3  Circuit fuse check 
  1. Check "A/C" fuse (1) in fuse box No.2 with ignition switch turned OFF.
G04846580Courtesy of SUZUKI OF AMERICA CORP.

Is "A/C" fuse in good condition? 		 Go to Step 4. Check for short in circuits connected to this fuse.
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? 		 Substitute a known-good ECM and recheck. Go to Step 5.
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? 		 Go to Step 6. Repair or replace power supply circuit of A/C condenser cooling fan relay.
6  A/C condenser fan relay check 
  1. Check A/C condenser cooling fan relay for operation referring to RADIATOR COOLING FAN RELAY INSPECTION .

Is it in good condition? 		 Repair or replace control circuit of A/C condenser cooling fan relay. If circuit is OK, substitute a known-good ECM and recheck. Replace A/C condenser cooling fan relay.
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