P1578

2F50 - P1578

Information saved in
DME

Fault code
2F50 - P1578

Fault text
No message from instrument cluster

Fault description
Speed Indication Instrument Pack / ASC Signal Correlation

Condition for fault identification
Test condition:
No suspension of bus activity, no active DSC intervention,
brake pedal not depressed, accelerator not depressed
Terminal condition: 800 ms after Terminal 15
Voltage condition:
battery voltage >10 V

Condition for fault memory entry
0.5 sec

Action in service
Check instrument cluster ECU
Check DSC-SG
Check PT-CAN
No hardware replacement if frequency of fault is low and
test of indicated ECU is OK

Fault effect and breakdown warning


Driver information
Warning light:
FGR/ACC is deactivated

Service instruction
none