One dipped headlamp lowered and not moving
- Make
- Alfa Romeo
- Model
- GT Factory Service Manual
- Year
- 2003–2010
- Section
- Lights › One dipped headlamp lowered and not moving
ONE DIPPED HEADLAMP LOWERED AND NOT MOVING
One headlamp is completely lowered and not moving, the other is working properly.
Warning: Presence of high voltage (25 kV) at the gas discharge bulb connector during the first 0.7 seconds after the dipped headlamps have been turned on.
Do not switch on the dipped headlamps when the discharge lamp connector is not correctly connected.
Do not disconnect the discharge bulb connector with the dipped headlamps switched on.
Handle the discharge bulb with clean, cloth gloves and never touch the glass bulb with your fingers.
Never reverse the polarity of the supply line for the headlamps or else the control unit will be irreversibly damaged.
| Results of the tests | ||||
| 1 | CLOCK LEAD CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| Check the continuity of the clock lead | Continue to Step 2 | Clock lead broken | Restore the continuity See | |
| Control unit not sending clock signal | Replace control unit Op. | |||
| 2 | SENSOR LEAD CHECK | All OK | Problems met | Operation |
| Check the continuity of the sensor lead | Continue to Step 3 | Sensor lead broken | Restore the continuity See | |
| Control unit not sending sensor signal | Replace control unit Op. | |||
| 3 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | The fault persists | Replace the Body Computer Op. | |
Parts & tools for this job For 2003 Alfa Romeo GT
- PARTReplacement bulbsSearch: Alfa Romeo GT 2003 bulbs
- TOOLDigital multimeterSearch: automotive digital multimeter
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