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 Version 20.10.2020 

HW: CAM(V31)/(V34) 

……RL2-UCON8-SM 

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2.7.2.

 

Case 2: CAN-box does not receive the reverse gear signal 

 
If the CAN-bus interface does not r12V on the green wire of the 6pin to 8pin cable 
when reverse gear is engaged (not all vehicles are compatible) an external switching signal 
from the reverse gear 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). 
 

 

 

Cut the green cable of the 6pin to 8pin cable close to the black 8pin connector and 
isolate the shorter end of the green cable near to the 8pin connector (CAN-box side). 

 

Connect the reverse gear light signal/power to coil terminal (85) and vehicle’s ground 
to coil terminal (86) of relay. 

 

Connect the rear-view camera power wire and the green wire (video interface side) 
of the 6pin to 8pin cable both to output terminal (87) of the relay. 
 
Connect permanent battery power to input terminal (30) of relay. 

 
Note: If, due to a missing CAN communication, the 6pin to 8pin cable has been connected 
the analogue way instead of the Can box, the green wire’s connection has also to be done as 
shown in the picture above. 

 

Summary of Contents for RL2-UCON8-SM

Page 1: ...inserter with 2 video inputs rear view camera input and CAN bus communikation Product features Video inserter for factory infotainment systems 2 CVBS video inputs for after market devices e g USB pla...

Page 2: ...Installation video interface and CAN bus box 2 2 Connection schema 2 3 Connection video interface and Power CAN 2 4 Analogue connection video interface 2 5 Connection picture signal cable 2 6 Connecti...

Page 3: ...tions of the interface Up to one year after purchase we offer free software updates for our interfaces To receive a free update the interface has to be sent in at own cost Wages for de and reinstallat...

Page 4: ...nd other vehicles with head unit and separate 8 4 inch monitor Uconnect 8 4N RB5 and 8 4 RE2 Limitations Video only The interface inserts ONLY video signals into the infotainment For inserting Audio s...

Page 5: ...es in a factory monitor compatible picture signal which is inserted in the factory monitor by using separate trigger options Further it reads the vehicle s digital signals out of the vehicle s CAN bus...

Page 6: ...uts will be skipped while switching through the video interfaces inputs 1 3 3 2 Rear view camera setting dip 5 If set to OFF the interface switches to factory LVDS picture while the reverse gear is en...

Page 7: ...succeed the disconnection of the battery can be done with a resistor lead If the necessary stabilized power supply for the interface is not taken directly from the battery the chosen connection has to...

Page 8: ...Version 20 10 2020 HW CAM V31 V34 RL2 UCON8 SM Page 8 2 2 Connection schema...

Page 9: ...ctors to the male 6pin and 8pin connectors of the video interface Disconnect the female 22pin connector of the factory harness at the rear side of the head unit and connect it to the 22pin PNP cable s...

Page 10: ...t the CN box Connect the female 6pin connector of the 6pin to 8pin cable to the 6pin connector of the video interface Connect the yellow the red and the black wire of the 6pin to 78pin cable to the ve...

Page 11: ...l cable s female 4pin HSD connector at the rear side of the factory monitor and connect it to the purple colored male 4pin HSD connector of the enclosed picture signal cable Attention The factory pict...

Page 12: ...mmend a test run to detect a incompatibility of vehicle and interface Due to changes in the production of the vehicle manufacturer there s always a possibility of incompatibility Connect the video cab...

Page 13: ...he 6pin to 8pin cable carries 12V while the reverse gear is engaged Note Do not forget to set dip5 of video interface to ON before testing 2 7 1 Case 1 CAN box receives the reverse gear signal If the...

Page 14: ...use of a relay normally open Cut the green cable of the 6pin to 8pin cable close to the black 8pin connector and isolate the shorter end of the green cable near to the 8pin connector CAN box side Con...

Page 15: ...interface and external keypad Connect the keypad s female 4pin connector to the video interface s male 4pin connector Note Even if the switching through several video sources by the keypad mightn t be...

Page 16: ...lected and visible on the monitor AV2 and CAM share the same settings which must be adjusted in AV2 Note The OSD menu is only shown when a working video source is connected to the selected video input...

Page 17: ...ress of the steering wheels Voice key switches to the next activated video input A long press of the4 3inch monitor s More key switches to the next activated video input If all inputs are enabled the...

Page 18: ...nally to the factory infotainment button the white wire of the 6pin cable can be used to switch the enabled inputs Every 5 12V pulse switches the video interface to the next enabled input 4 Specificat...

Page 19: ...er order of LVDS cables is exactly connected according to manual Plugging into head unit does not work when the manual says to plug into monitor and vice versa Wrong monitor settings of video interfac...

Page 20: ...EM button CAN bus interface does not support this function for vehicle Use external keypad or cut white wire of 6pin to 8pin cable and apply 12V impulses for AV switching Pressed too short For video s...

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