Test Point 6

Test point 6
Signal, reverse gear-navigation unit

Signal implausible

Fault code 25

Signal implausible
1. Check reversing light switch or, on Tiptronic vehicles, position switch.
2. Check lead from navigation unit plug pin 4 to the reversing light switch or position switch for short circuit to B+.

NOTE: The lead is routed via plug connection X 2/4 and via the jumper plug 20/1 on relay carrier 2.