Initial Inspection
INSPECTIONBefore 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: 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. Turn the air flow control dial to "DEF" position.
4. Turn the fan speed control dial to 4th position.
5. Put a strip of paper close to the front side of invehicle 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 lowerside high-pressure pipe.
4. CONTROL SWITCHES
Start the engine and warm-up completely.
1. Inspection using switches
2. Compressor operation inspection
3. Inspection of illumination control
4. Inspection of the rear cooler switch
5. Inspection of rear cooler
6. Inspection of illumination control