Hyundai Accent: Heating, Ventilation and Air Conditioning / Troubleshooting
Problem Symptoms Table
Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor.Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.After correcting the malfunction, check the complete system to ensure that performance is satisfactory.| Symptom | Suspected Area |
| No blower operation | Blower fuse |
| Blower relay | |
| Blower motor | |
| Power mosfet | |
| Blower speed control switch | |
| Wire harness | |
| No air temperature control | Engine coolant capacity |
| Heater control assembly | |
| No compressor operation | Refrigerant capacity |
| A/C fuse | |
| Compressor | |
| A/C pressure transducer | |
| A/C switch | |
| Evaporator temperature sensor | |
| Wire harness | |
| Vented air not cold | Refrigerant capacity |
| Refrigerant pressure | |
| Drive belt | |
| Compressor | |
| A/C pressure transducer | |
| Evaporator temperature sensor | |
| A/C switch | |
| Heater control assembly | |
| Wire harness | |
| Insufficient cooling | Refrigerant capacity |
| Drive belt | |
| Compressor | |
| Condenser | |
| Expansion valve | |
| Evaporator | |
| Refrigerant lines | |
| A/C pressure transducer | |
| Heater control assembly | |
| No engine idle-up when A/C switch ON | Engine ECM |
| Wire harness | |
| No air inlet control | Heater control assembly |
| Intake actuator | |
| No mode control | Heater control assembly |
| Mode actuator or cable | |
| No cooling fan operation | Cooling fan fuse |
| Fan motor | |
| Engine ECM | |
| Wire harness | |
| Blower resister | |
| Power mosfet |
Other information:
- Specifications Brake oil : DOT 3 or DOT 4 Reservoir capacity (cc) MAX LEVELA + B + C + D + E409 ± 20 ON LEVEL (MIN LEVEL)(H = 23 ± 1.5 mm)B + C + D138 ± 10 PARTIAL LEVELC (PRI)28 D (SEC)31 CLUTCH LEVELE12 - Replacement 1.Disconnect the battery (-) terminal. 2.Remove the brake fluid level sensor connector. 3.Remove the reservoir cap and remove the brake fluid from the reservoir tank using the cleaner. - Inspection 1.Troubleshooting for Speaker(1)Basic inspection of speakerInspect the sound from speaker after verifying that the speaker mounting screws is removed and the wiring connector is connected precisely to remove vibration transmitted from body trims and surrounding parts. (2)Case TroubleshootingNoCaseInspection/Remedy 1Trembling sound1)Before replacing the speaker, inspect that the mounting screw is installed normally.
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