DIPPED HEADLAMPS - Functional description
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Interior lighting › DIPPED HEADLAMPS - Functional description
DIPPED HEADLAMPS - Functional description
Functional description
The dipped headlamps activation signal is sent to pin 4 of connector D of the Body Computer M1 from the steering column switch unit H5.
The 'ignition ON signal (INT) for the switch H1 reaches the underdashboard control unit B2 at pin 11 of connector H and from there moves on to the Body Computer M1 (pin 9 of connector F).
The Body Computer M1 controls the supply of the dipped headlamps sending an earth signal to the underdashboard control unit B2 - from pin 8 of connector F of M1 - which energizes the relay T1: this supplies the dipped headlamps F10 (left) and F11 (right). Each circuit is protected by a control unit B2 fuse: F13 for the left headlamp and F12 for the right one.
Functional description
The dipped beam activation signal is sent to pin 4 of connector D of the Body Computer M1 from the stalk unit H5.
The 'ignition ON signal (INT) for the switch H1 reaches the underdashboard control unit B2 at pin 11 of connector H and from there moves on to the Body Computer M1 (pin 9 of connector F).
The Body Computer M1 controls the supply of the dipped headlamps sending an earth signal to the underdashboard control unit B2 - from pin 8 of connector F of M1 - which energizes the relay T1: this supplies the dipped headlamps F10 (left) and F11 (right). Each circuit is protected by a control unit B2 fuse: F13 for the left headlamp and F12 for the right one.
Parts & tools for this job For 2000 Alfa Romeo 147
- PARTReplacement bulbsSearch: Alfa Romeo 147 2000 bulbs
- TOOLDigital multimeterSearch: automotive digital multimeter
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