Inspection
General DescriptionINSPECTION
Before performing the diagnosis, check the following items which may cause problems in the A/C system.
1. BATTERY
Check the battery.
NOTE: If the battery voltage does not reach the specified value, recharge or replace the battery.
2. RADIATOR FAN
Check the radiator fan.
NOTE: If the radiator fan does not operate, repair the radiator fan.
3. ENGINE COOLANT
Check that the reservoir tank contains engine coolant.
The coolant is between LOW and FULL marks of the reservoir tank.
NOTE: If the engine coolant is low, add engine coolant.
4. ASPIRATOR HOSE
1. Turn the ignition switch to ON, and press the A/C switch.
2. Turn the temperature control switch to maximum hot position.
3. Set the blow vents to the DEF position.
4. Turn the fan switch to "MAX" position.
5. Put a strip of paper close to the front side of in-vehicle sensor suction port (A) located in the instrument panel lower cover, 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 instrument panel lower cover and check for poor connection of the aspirator hose (A), in-vehicle sensor and heater unit, and repair them if necessary.
5. A/C LINE
Check the connection for A/C line (A) and lower side high-pressure pipe.
6. 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.
7. CONTROL SWITCHES
Start the engine and warm up completely.
1. Inspection using switches
2. Inspection of compressor operation
3. Inspection of illumination control
