| | Results of the tests |
| 1 | CHECKING COMPRESSOR CONTROL | All OK | Problems met | Operation |
|---|
| Using
an ohmmeter, check the compressor engagement control. | in the OFF position circuit should
be open, whilst in the ON position it should be short circuited |
| Continue to Step 2 | Control defective | Replace the control Op. 5040D22 |
| 2 | CHECKING FAN | All OK | Problems met | Operation |
|---|
| Check
the condition of the passenger compartment air fan. | Continue to Step 3 | Fan faulty | Replace the fan Op. 5040C30 |
| 3 | CHECKING ADJUSTMENT RESISTANCES | All OK | Problems met | Operation |
|---|
| Check
the continuity of the passenger compartment air fan speed adjustment
resistances. See Test 5040CC - | Continue to Step 4 | Adjustment resistance
circuit open | Replace the resistor Op. 5040C48 |
| 4 | CHECKING ELECTRICAL CIRCUIT | All OK | Problems met | Operation |
|---|
| Check
the continuity of the connecting cables between the passenger compartment
air fan control, the adjustment resistances and the fan motor See E6020 AIR CONDITIONING | Continue to Step 5 | Connections not correct | Restore connections |
| 5 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | | Fault persists | Search for the fault starting from another symptom' |
