Headlamp levelling switch (282): Connection

Headlamp levelling requires one pin for +15 and one for the output to the two headlamp levelling motors. The LEDs are grounded internally and are supplied with PWM from BCM.

Fig 1: Identifying Communication Flow Headlamp Levelling Switch

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CONNECTOR PINOUTS REFERENCE

Pin No.	Signal type	Description
4	Lighting	From BCM. + supply with PWM to LEDs
1	Ground	Ground to the body
6	Power supply, +15	From dashboard main fuse box pin 8
5	Headlamp levelling	To the headlamp levelling motors. Drop in voltage when the knob is turned to a shorter beam length.

Switch, left-hand headlamp levelling motor

Fig 2: Circuit Diagram - Headlamp Levelling Switch (1 Of 2)

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Switch, right-hand headlamp levelling motor

Fig 3: Circuit Diagram - Headlamp Levelling Switch (2 Of 2)

Courtesy of SAAB-SCANIA OF AMERICA, INC.