Honda Accord: A/C System Inspection - Heating/Air Conditioning - Heating, Ventilation, and Air Conditioning - Honda Accord MK8 2008-2012 Service ManualHonda Accord: A/C System Inspection

Before troubleshooting any problem with the air conditioning system, do the following: 1. With the ignition switch in LOCK (0), inspect the A/C components, the pressure lines and the hoses for stains that may indicate a refrigerant or a compressor oil leak.

2. Check the A/C condenser for material clogging the


2. Check the A/C condenser for material clogging the fins or for damage to the fins: • Carefully clean any material from the A/C condenser fins with water and detergent. If deeper cleaning is required, clean the fins with Hondabrite Motorcycle Cleaner (P/N 08732-0032).

• Be sure to dry the A/C condenser (A) completely.

• - Refer to the refrigerant leak test (see page 21-82) to confirm leaks if there is visible damage to the A/C condenser.

3. Inspect the drive belt (see page 4-29).


3. Inspect the drive belt (see page 4-29).

4. Make sure no material is blocking the airflow to the A/C condenser.

5. Check the dust and pollen filter, and replace it if it is clogged (see page 21-79).

6. Check for kinks or sharp bends in the A/C lines and hoses, which can greatly reduce system performance.

Replace the A/C lines and hoses if they are kinked or damaged (see page 21-7).

7. Start the engine, turn the air conditioning system on, and allow it to run for a few minutes and reach stable operation.

8. Check that the A/C operates at each position of the blower fan switch (except OFF). If the A/C does not operate, refer to the symptom troubleshooting.

9. Check that the A/C compressor clutch (A) is engaged.

The pressure plate should be rotating at the same c n a o r i Р’В»c t h e pii Hey. !f the prcecurР’В© plate does not engage, refer to the symptom troubleshooting.

10. Check that the cooling fans (B) operate when the A/C


10. Check that the cooling fans (B) operate when the A/C compressor clutch is engaged. If either fan fails to . operate when the A/C compressor clutch is engaged, refer to the symptom troubleshooting.

11. Check that the engine idle speed is correct when the A/C is switched on and off, and when the A/C compressor clutch is engaged and disengaged.

    A/C Line Replacement
    1.Discharge hose to the A /C compressor (6 x 1.0 mm): S.8 N-m (1.0 kgf-m, 7.2 Ibf-ft) 2.Discharge hose to the A /C condenser (6x1.Р’В© mm): 9.8 N-m f 1.0 kgf-m, 7.2 Ibf-ft) 3.Receiver lin ...

    General Troubleshooting Information
    How to Use the Self-diagnostic Function The HVAC control unit has a self-diagnostic function for the heating, ventilation, and air conditioning system. To run the self-diagnostic function, do the ...

    See also:

    Fuel Line/Quick-Connect Fitting Precautions
    The fuel line/quick-connect fittings (A, B, C, D, E, and F) connect the fuel rail (G) to the fuel feed hose (H), the fuel feed hose to the fuel line (I), the fuel line (J) to the fuel tank unit (K) ...

    Engine Oil Replacement
    1. Warm up the engine. 2 Remove the drain bolt (A), and drain the engine oil. 3. Reinstall the drain bolt with a new washer (B). 4. Refill the engine with the recommended oil (see page 3-2). ...

    DTC Troubleshooting
    DTC U0155: Immobilizer-keyless Control Unit Lost Communication With Gauge Control Module NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosi ...