2B55 - P1681 (DME)

2B55 - P1681

Information saved in
DME

Fault code
2B55 - P1681

Fault text
Control module, internal fault

Fault description
Electronic Throttle Control Monitor Level 2/3 Engine Speed
Calculation Error

Condition for fault identification
Test condition:
Internal rpm deviation within control module of
K_N_E2_DELTA for a period of 0.5 sec.
(K_N_E2_T_MAX
Terminal condition: Terminal 15
Voltage condition:
none

Condition for fault memory entry
10 ms/100 ms

Action in service
1. Clear fault memory
2. Update DME
2. Replace DME

Fault effect and breakdown warning
CC message
Engine speed limited
Reduced power
MIL after engine runs 2x

Driver information
Warning light:
MIL, EML, CC message, backup program

Service instruction
none