Speed Signal, Checking

Speed signal, checking
The speed signal comes from the speedometer -G21- in the instrument cluster.
^ Remove driver's side storage compartment.





For Right Hand Drive (RHD) vehicles
^ Unbolt mounting bracket and remove.





^ Remove relay for Servotronic control module -J236-, position 13.
^ If the voltage supply, the Servotronic valve and the speed indication at the speedometer are OK, check electrical wire between terminal 4 and speedometer -G21-.
^ If electrical wire between terminal 4 and speedometer -G21- is OK, replace relay for Servotronic.