Version 20.03.2017
VL3-MIB-4
P
a
g
e
13
2.4.3.2.
Case 2: CAN-box does not receive the reverse gear signal
If the CAN-bus interface does not d12V on the green wire of the 20pin connection
cable when reverse gear is engaged (not all vehicles are compatible) an external switching
signal from the reverse light is required. As the reverse gear light signal contains electronic
interference, a traditional open relay (e.g AC-RW-1230 with wiring AC-RS5) or filter (e.g. AC-
PNF-RVC) is required. Below schema shows the use of a relay (normally open).
Disconnect the green rear-view camera input cable of the 20pin connection cable
from the rear-view camera output cable near the transparent plug.
The green rear-view camera output cable of the 20pin connection cable is not used.
Connect the reverse gear light signal/power to coil (85) and ground to coil (86) of
relay.
Connect the rear-view camera power wire and the green rear-view camera input
cable of the 20pin connection cable both to output (87) of the relay.
Connect permanent battery power to input (30) of relay.
