P1728

4F70 - P1728

Information saved in
GS

Fault code
4F70 - P1728

Fault text
Engine over speed

Fault description
Engine Overspeed Condition

Condition for fault identification
Test condition:
Torque transfer in D for >1000 msec
Terminal condition: Ignition ON
Voltage condition:
7 ... 16V

Condition for fault memory entry
Filter counter controlled by time or events

Action in service
1. Read out error frequency counter. If fault frequency is > 2
Replace Mechatronic.
2. If fault is passive: Clear fault memory and conduct road
test under monitored conditions. If fault code is not
registered, transmission OK
If fault code is entered repeatedly Replace Mechatronic

Fault effect and breakdown warning


Driver information
Warning light:
E-gearshift: CC-ID170/173
M-gearshift: CC-ID420
Mech. emergency default mode

Service instruction
none