3315555 - E2022 REVERSING LIGHTS - Functional description (Automatic transmission)

Functional description

The reversing lights switch l20 is supplied by the MAXIFUSE CENTR of B5 via the contact of the relay R1 of B1 and fuse F13 it contains. The coil of relay R1 is energised by the ignition switch H1 (INT/A line). When reverse gear is engaged, the switch closes and sends the supply to the reversing lights in the centre rear light cluster on the left F35 and on the right F36 , via the junction unit B1 (pin 7 connector I and pin 2 of connector C). When reverse gear is engaged, a signal is also sent to the interior electrochromic rearview mirror P65 . (  See E3032  DOOR MIRROR ADJUSTMENT )

Functional description

Its operation is the same as on a manual gearbox, but the reverse gear engaged signal arrives from one of the sensors of the electronic auto transmission sensor assembly (junction D79 ).