General Troubleshooting of A/C System

1. Basic Test:
This troubleshooting procedure should be used in the event of a fault in the A/C system. Complete the procedure to identify the fault and necessary corrective action by degrees.

2. Adjustments and action
Set:
- temperature control to max. cooling.
- A/C switch to ON.
- function selector to VENT.
- recirculation switch to REC.
- blower speed to max. (approx. 75-80% or as close to max. as possible).

Close:
- hood.
- doors and windows.

Run engine at 2000 rpm/min. Place thermometer in one of center console valves. Allow ventilation air temperature to stabilize.

Check that FC and compressor are operating normally.





3. Performance Specification





4. General Troubleshooting (all except diagnostics)

Checking Compressor Pressure at Different Cycles Part 1 Of 2:

5. Checking Compressor Pressure at Different Cycles - 1

Checking Compressor Pressure at Different Cycles Part 2 Of 2:

6. Checking Compressor Pressure at Different Cycles - 2





7. Checking the Compressor





8. Checking the Compressor Supply





9. Final Test and Filling With Refrigerant