| | Results of the tests |
| 1 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
that the horn circuit fuse seat is not oxidised or with loose contacts
See E3010 HORNS | Continue to Step 2 | Fuse seat oxidised or
with loose contacts | Restore to working order and change engine
bay control unit if necessary Op. 5505A13 |
| 2 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
that the horn circuit control relay seat is not oxidised or with
loose contacts See E3010 HORNS | Continue to Step 3 | Relay seat oxidised or
with loose contacts | Restore to working order and change engine
bay control unit if necessary Op. 5505A13 |
| 3 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
efficiency of horn control relay contacts See E3010 HORNS | Continue to Step 4 | Contacts inefficient | Change relay |
| 4 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
the efficiency of the horn earth connection See E3010 HORNS | Continue to Step 5 | Faulty earth | Restore the earth connection See E3010 HORNS |
| 5 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
the efficiency of the terminal at the cable for the positive horn
supply See E3010 HORNS | Continue to Step 6 | Terminal inefficient | Change terminal |
| 6 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the horn is working properly | | Horn not working properly | Replace the horn Op. 5550B30 Search
for the fault starting from another symptom' |