P16A7

2D51 - P16A7

Information saved in
DME

Fault code
2D51 - P16A7

Fault text
DME, internal fault: monitoring, air path

Fault description
Control Module Self-Test, Hot Film Air Mass Meter
Monitoring

Condition for fault identification
Test condition:
Air path monitor
Power at throttle valve
Compare model mass airflow from injection quantity with
calculated air mass
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system >= 10 V

Condition for fault memory entry
480 ms

Action in service
Check fuel and airflow paths (induction leak, lambda
controller, FSD errors entered)
If frequency is >=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