Version 02.10.2015
NA-VL2DVD900
Pa
ge
14
2.5.4.2.
Case 2: GM -LAN box does not detect reverse gear
If the GM-LAN box does not d12V on the green wire of the 6pin to 8pin cable when
reverse gear is engaged (not all vehicles are compa
ti
ble) an external switching signal from
the reverse gear light is required. As the reverse gear light signal contains electronic
interference, a normally open relay (e.g AC-RW-1230 with wiring AC-RS5) or
fi
lter (e.g. AC-
PNF-RVC) is required. Below schema shows the use of a relay (normally open).
Cut the green cable of the 6pin to 8pin cable close to the at the black 8pin connector.
Isolate the short end of the green wire (GM-LAN box side).
Connect reverse gear light signal/power to coil (85) and ground to coil (86) of relais.
Connect rear-view camera power and green wire (video interface side) of 6pin to
8pin cable to output (87) of relay.
Connect permanent ba
tt
ery power to input (30) of relay.
