Parking lights / license plate lighting

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Volvo V70, 2006 Volvo V70, 2005 Volvo V70, 2004 Volvo V70, and 2003 Volvo V70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Parking Lights And License Plate Lighting Input And Output Signals

Courtesy of VOLVO CARS OF NORTH AMERICA.

The parking lamps (10/11-12, 10/17-18) and license plate lighting (10/3) lights when:

The knob in the light switch module (LSM) (3/111) is in the low beam position
The knob in the light switch module (LSM) is in the parking lamp position
Low beam is lit via the low beam automatic function.

The lamp switch module (LSM) transmits data using serial communication to the central electronic module (CEM) (4/56) to activate the lamps.

The lamps are supplied with power via a relay (2/61) which is activated by the central electronic module (CEM). The license plate lighting, the front parking lamps (also on the front fenders for US models) are directly supplied with power. The rear parking lamps are supplied by two shunts (20/28, 20/33) on the rear electronic module (REM) (4/58) so that blown bulbs can be detected.

In the event of a bulb fault for the rear parking lamps, data is transmitted on the control area network (CAN) from the rear electronic module (REM) to the driver information module (DIM) (5/1) and a text message is displayed.

There is a Limp Home function for the parking lamps so that they will work even if there is a fault in the control area network (CAN) or in the serial communication between the light switch module (LSM) and the central electronic module (CEM).