| | Results of the tests |
| 1 | CHECKING WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect
diagnostic equipment (Examiner or other instruments) to the diagnostic
socket. Check that there are no faults in the climate control control unit |
Continue to Step
2
| An error is detected in
the control unit | Continue following the instructions for the diagnostic
equipment |
| Lack of dialogue with the control unit |
Restore connection between climate control control unit
and diagnostic connector (
See E6020 AIR CONDITIONING
)
|
| Specific software not available |
Continue to Step
3
|
| 2 | ACTIVE DIAGNOSIS WITH DIAGNOSTIC
EQUIPMENT | All
OK | Problems
met | Operation |
|---|
| Using
the diagnostic equipment (Examiner or other instruments), carry
out the active diagnosis for the electric fan at the different speeds |
Continue to Step
5
| Electric fan faulty |
Replace the electric fan
Op. 5040C30
Continue to Step
5
|
| 3 | CHECK ELECTRIC FAN CONTROL SIGNAL | All OK | Problems met | Operation |
|---|
|
Check
that the 'VC' electric fan signal is correct:
See Test 5040CB Check brushless motor 'Vc' control signal |
Continue to Step
4
| Signal shorting to +Battery | Repair the insulation |
| 4 | CHECK ELECTRIC FAN | All OK | Problems met | Operation |
|---|
| Check
that the electric fan is working |
Continue to Step
5
| Electric fan faulty |
Replace the electric fan
Op. 5040C30 |
| 5 | HECK ON CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |