| | Results of the tests |
| 0 | PRELIMINARY CHECK | All OK | Problems met | Operation |
|---|
| Check
the condition of the fog lamp fuse on the engine bay control unit | Continue to Step 1 | Fuse blown | Check for short circuits by
proceeding to step 5, then change fuse |
| 1 | CHECK WITH DIAGNOSTIC EQUIPMENT | All OK | Problems met | Operation |
|---|
| Connect the Examiner to the tester
input and check the following on the Body Computer Node: - absence of Fog Lamp Relay faults
- Plausibility of fog lamp on/off parameter
- relay operation via active diagnosis
| Continue to Step 5 | Presence of low beam relay
fault | Continue
as instructed by the tester |
| Fog lamp activation parameter does not change status | Continue to Step 8 |
| Relay does not activate | Continue to Step 2 |
| 2 | CHECK FOG LAMP RELAY | All OK | Problems met | Operation |
|---|
| Check
condition of fog lamp relay | Continue to Step 3 | Defective relay | Change relay |
| 3 | CHECKING ELECTRICAL SYSTEM
IN ENGINE BAY CONTROL UNIT (control circuit) | All OK | Problems met | Operation |
|---|
| Check
internal continuity of the engine bay control unit (control circuit)
See E2030 FOG LIGHTS | Continue to Step 4 | Engine bay control unit connection
with circuit open | Replace engine bay junction unit Op. 5505A13 |
| 4 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
the continuity of the connection between the engine control unit
and the instrument panel () See E2030 FOG LIGHTS | Continue to Step 10 | Connection broken | Renew the electrical connections See E2030 FOG LIGHTS |
| 5 | CHECKING ELECTRICAL CIRCUIT INSIDE
ENGINE BAY CONTROL UNIT (power circuit) | All OK | Problems met | Operation |
|---|
| Check
the efficiency of the engine bay control unit internal circuit (power
circuit) See E2030 FOG LIGHTS | Continue to Step 6 | Connection with short
circuit or open circuit in engine bay control unit | Change engine bay junction
unit Op. 5505A13 |
| 6 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
condition of the electrical connection between engine bay control
unit and fog lamp See E2030 FOG LIGHTS | Continue to Step 7 | Connection with short
circuit or open circuit | Renew the electrical connections See E2030 FOG LIGHTS |
| 7 | CHECKING FOG LAMP BULB CONDITION | All OK | Problems met | Operation |
|---|
| Check
the condition of the fog lamp bulbs | Continue to Step 10 | Bulb fault | Replace bulbs Op. 5540D14 |
| 8 | CHECKING ELECTRICAL EQUIPMENT | All OK | Problems met | Operation |
|---|
| Check
the continuity of the connecting cable between the fog lamp control
and the Body Computer See E2030 FOG LIGHTS | Continue to Step 9 | Connection broken | Renew the electrical connections
See E2030 FOG LIGHTS |
| 9 | CHECKING FOG LAMP CONTROL | All OK | Problems met | Operation |
|---|
| Check
operation of the fog lamp control button See Test 5540AA Checking Exterior Lighting Control (C.L.E.) | Continue to Step 10 | Fog lamp activation button
faulty | Change
the exterior lighting control panel Op. 5540A20 |
| 10 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | | Fault persists | Replace the Body Computer Op. 5505M32Search
for the fault starting from another symptom' |
