3308673 - L02 CLIMATE CONTROL NOT WORKING / (NO AIR DELIVERY)
The fan which sends air into the passenger compartment does not come on| 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 connection fault | Restore:
| |
| Electric fan faulty | Replace the electric fan Op. 5040C30 Continue to Step 5 | |||
| 3 | CHECK ELECTRIC FAN CIRCUIT | All OK | Problems met | Operation |
Check, in order:
| Continue to Step 4 | Connections not correct | Restore connections | |
| Component defective | Replace the component involved | |||
| 4 | CHECK ELECTRIC FAN CIRCUIT | All OK | Problems met | Operation |
| Check that the 'TACHO' signal is correct See Test 5040CA Check 'brushless fan 'tacho' signal to air conditioner control unit | Continue to Step 5 | Signal shorting to earth | Repair the wiring insulation or replace the 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' | |