DTC Troubleshooting

WARNING: This page is about a different car, the 2010 Suzuki Kizashi. However, it is still accessible from the selected car via links, so may be relevant.

DTC TROUBLESHOOTING CHART

Step	Action	YES	NO
1	A/C refrigerant pressure check Turn on A/C switch and operate A/C compressor. Check "Refrigerant Pressure" using "Data list" mode on SUZUKI scan tool, see Scan Tool Data . Is pressure over 0.34 Mpa?	Go to Step 2.	Charge refrigerant and recheck DTC, see Operation Procedure for Refrigerant Charge .
2	A/C refrigerant pressure sensor check Check A/C refrigerant pressure sensor, see A/C REFRIGERANT PRESSURE SENSOR AND ITS CIRCUIT INSPECTION . Is it in good condition?	Go to Step 3.	Replace A/C refrigerant pressure sensor, see A/C REFRIGERANT PRESSURE SENSOR AND ITS CIRCUIT INSPECTION .
3	Outside air temperature sensor check Check outside air temperature sensor, see Operation Procedure for Refrigerant Charge . Is it in good condition?	Go to Step 4.	Replace outside air temperature sensor, see A/C REFRIGERANT PRESSURE SENSOR AND ITS CIRCUIT INSPECTION .
4	A/C system check Check A/C system, see A/C SYSTEM PERFORMANCE INSPECTION . Is it in good condition?	Replace HVAC control module and recheck DTC, see HVAC Control Module Removal and Installation .	Perform TROUBLE DIAGNOSIS FOR ABNORMAL PRESSURE and recheck DTC.