Operating Instructions
8 
8. Troubleshooting 
Symptoms 
Causes 
Solutions 
No reaction from the system while 
the gear is switched to reverse. 
No power input. 
Check whether the power 
cable is properly connected. 
No reaction from the system while 
the gear is switched to reverse. 
No power input or no 
trigger input. 
Check whether the power 
cable and trigger input cable is 
properly connected. 
No reaction on display while there 
are obstacles within the detecting 
area. 
Improper connection of 
the sensor or monitor. 
Check whether the connection 
is properly connected. 
There is no obstacle within the 
detecting area, but constant 
warning and voice prompt occurs. 
There may be too much 
dirt on sensors causing 
some interference. 
Clean the sensors. 










