Main beam headlamps not working
- Make
- Alfa Romeo
- Model
- Brera and Spider Factory Service Manual
- Year
- 2005–2010
- Section
- Lights › Main beam headlamps not working
MAIN BEAM HEADLAMPS NOT WORKING
The main beam headlamps are not working in any conditions (either in the stable lever position or flasher position);
The main beam headlamps are controlled by the Body Computer Node via a relay located in the Engine Compartment Junction Unit;
The lights can be switched on/off using the following controls:
1. Command from stalk in fixed position
2. Command from the stalk in "flasher function" unstable position.
| 1 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
|---|---|---|---|---|
| Connect the Examiner diagnostic equipment to the diagnostic socket and check for the presence of the following errors in the Body Computer Node: | Move on to Step 2 | Errors present in the Body Computer Node | Continue following the instructions for the diagnostic equipment. | |
| 2 | MAIN BEAM HEADLAMPS RELAY CHECK | All OK | Problems encountered | Operation |
| Check the condition of the main beam headlamp relay | Move on to Step 3 | Relay defective | Replace the relay | |
| 3 | CHECK THE OPERATION OF THE ENGINE COMPARTMENT CONTROL UNIT FUSES | All OK | Problems encountered | Operation |
| Check that the high beam fuses in the engine compartment control unit are working properly | Move on to Step 4 | Fuses blown | Replace the fuses | |
| 4 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation |
| Keeping the diagnostic equipment connected, check in active diagnosis that the main beam headlamps are working properly | Move on to Step 7 | Main beam headlamps not working | Move on to Step 5 | |
| 5 | BODY COMPUTER CONNECTION CHECK | All OK | Problems encountered | Operation |
| Check for deformed terminals or connections not present on the Body Computer | Move on to Step 6 | Missing connections/pins bent | Renew the correct connections | |
| 6 | CHECK ON OPERATION OF BULBS | All OK | Problems encountered | Operation |
| Check that the main beam headlamp bulbs are working properly | Move on to Step 9 | Filament in one of the bulbs broken | Replace bulb [PR_5540B24]. Op. 5540B51 BULB (ONE) FOR LEFT LIGHT CLUSTER - R.R. , | |
| 7 | ELECTRICAL SYSTEM CHECK | All OK | Problems encountered | Operation |
Check the continuity of the connections between the steering column switch unit and the Body Computer Node. | Move on to Step 8 | Connecting cables broken or not insulated. | Restore the correct electrical connection | |
| 8 | MAIN BEAM HEADLAMPS CONTROL OPERATION CHECK | All OK | Problems encountered | Operation |
| Check that the main beam headlamps control on the stalk is working | Move on to Step 9 | Internal stalk break | Replace the steering column switch unit | |
| 9 | CHECK ON CORRECT OPERATION | All OK | Problems encountered | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists. | Replace Body Computer |
Parts & tools for this job For 2005 Alfa Romeo Brera
- PARTReplacement bulbsSearch: Alfa Romeo Brera 2005 bulbs
- TOOLDigital multimeterSearch: automotive digital multimeter
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