Inspection

INSPECTION

Before performing the diagnosis, check the following items which may cause problems in the A/C system.

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

Standard voltage: 12 V

Specific gravity: 1.260 or more

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 to maximum hot position.
3. Set the air flow control dial to the "DEF" position.
4. Turn the fan switch to MAX.
5. Put a thin strip of paper close to the front side of in-vehicle sensor suction port (A) at the instrument panel lower cover, and check whether the strip becomes drawn towards the port, indicating that air is being drawn in at the port.

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






6. If the paper strip does not move at all, remove the center console and check for improper connection of the aspirator hose (A), 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 FRESH/RECIRC door linkage.

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

1. Inspection using switches





2. Compressor operation inspection






3. Inspection of illumination control