2D56 - P16B2 (DME)

2D56 - P16B1

Information saved in
DME

Fault code
2D56 - P16B1

Fault text
DME, internal fault: monitoring, idle air control

Fault description
Control Module Self-Test, Idle Air Control System
Integrated Component Plausibility

Condition for fault identification
Test condition:
Control module monitor
Throttle valve not without current
With I component LL controller implausible or specified LL
rpm is too high
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V

Condition for fault memory entry
480 ms

Action in service
If frequency >=3 Replace DME

Fault effect and breakdown warning


Driver information
Warning light:
MIL OFF EML ON CC: Reduced power, engine
malfunction
RPM limited to 1300 rpm

Service instruction
none