Initial Inspection

INSPECTION

Before performing the diagnosis, check the following items which might affect A/C system problems.

1. BATTERY
1. Measure the battery voltage and specific gravity of electrolyte.

Standard voltage: 12 V
Specific gravity: More than 1.260

2. Check the condition of the fuses for A/C system power supply and other fuses.
3. Check the condition of harness and harness connector connections.

2. ASPIRATOR HOSE
1. Turn the ignition switch to ON, and press the A/C switch.
2. Turn the temperature control dial at maximum hot position.
3. Turn the air flow control dial to "DEF" position.
4. Turn the fan speed control dial to 4th position.




5. Approach a strip of paper in front of the in-vehicle sensor suction port (A) located in the driver's side console side panel, and check that air is being sucked into the port by seeing the paper moving towards the port.

NOTE: Be careful not to let the paper get sucked into the port.

6. If the paper does not move at all, remove the driver's side console side panel and check for improper connection of the aspirator hose, in-vehicle sensor and heater unit, and repair them if necessary.




3. A/C LINE
Check the connection for A/C line (A) and lower side high-pressure pipe.

4. CONTROL LINKAGE
1. Check the state of mode door linkage.
2. Check the state of air mix door linkage.
3. Check the state of intake door linkage.

5. CONTROL SWITCHES
Start and warm-up the engine completely.

No. 1 - 6:

1. Inspection using switches

No. 1:

2. Compressor operation inspection

No. 1:

3. Inspection of illumination control