Fault codes

[grimreaper]

I have a problem with my parking sensors (ML270 CDI 2004 W163) I have found a list of Mercedes fault codes on the net and my question is this.
In the list there is one code for the Parktronic, this -
B1246 PTS Parktronic: A42b1 (left outer sensor, front bumper) The plug connection has poor contact or is loose, or the sensor or cable is faulty.
Would I be right if, say the (right outer sensor, front bumper) had failed the entry in a code scanner / Star would show
B1246 PTS Parktronic: A42b6 (right outer sensor, front bumper) The plug connection has poor contact or is loose, or the sensor or cable is faulty.
Or any other front sensor numbers A42b1 to 6 and likewise the rear sensors A43b7 to 10. The B1246 PTS Parktronic it the heading so to speak. The () is the actual sensor

Thank you

 

[grimreaper]

FYI
As I thought.
Any of the other front sensors numbers A42b1 to 6 and likewise the rear sensors A43b7 to 10. The B1246 PTS Parktronic it the heading so to speak. The ("Description") is the actual sensor and the number before the brackets. I got the sensor numbers from an electronic Mercedes Works manual I have.