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Reversing lights, detailed description

Reversing lights, detailed description

The reversing lights are located in the light clusters. The fuse box in the luggage compartment receives a bus message on the current gear and lights the reversing lights when reverse gear is engaged.

4D


5D


Manual gearbox

Brake light switch (31) pin 1 is connected to the underbody electrical centre UEC (342) pin 9 (M). Pin 2 on the brake light switch is connected to ground. When the gear lever is moved to "R", the reversing light switch (31) is closed and grounds UEC pin 9 (M). UEC sends the bus message "Reverse gear, manual" ON to the bus.

4D/CV: Provided the ignition is ON, REC (701) will feed B+ on pin 1 (T-C) and pin 11 (T-B) to pin 5 on the left and right-hand reversing light respectively (32/418HL and 32/418HR). Both light clusters (418HL/HR), in which the reversing lights are located, are connected to ground on pin 2.

5D: Provided the ignition is ON, REC (701) will feed B+ on pin 1 (T-C) and pin 11 (T-B) to pin 5 on the left and right-hand reversing light respectively (32/418RL and 32/418RR). Both light clusters (418RL/RR), in which the reversing lights are located, are connected to ground on pin 3.


Automatic transmission

The transmission range switch (245) is connected to TCM (502). When the gearbox is moved to "R", TCM (502) receives information on the current selector lever position. TCM (502) sends the bus message "Automatic selector lever position R" on the bus.

4D/CV: Provided the ignition is ON, REC (701) will feed B+ on pin 1 (T-C) and pin 11 (T-B) to pin 1 on the left and right-hand reversing light respectively (32/418HL and 32/418HR). Both light clusters (418HL/HR), in which the reversing lights are located, are connected to ground on pin 2.

5D: Provided the ignition is ON, REC (701) will feed B+ on pin 1 (T-C) and pin 11 (T-B) to pin 5 on the left and right-hand reversing light respectively (32/418RL and 32/418RR). Both light clusters (418RL/RR), in which the reversing lights are located, are connected to ground on pin 3.


Reversing light activation is delayed 320 ms so the light does not flash when the gear selector is shifted from "P" to "D" or the like.

Important

When changing a bulb, use one with the right output otherwise the components could be damaged.