Fault Information


Fault Code Description
Fault Code Conditions
Fault Time Condition
DME: Air-mass system
Service Plan

Mass or Volume Air Flow Too High
Fault Impact
Voltage in onboard electrical system >= 10 V
Terminal 15, engine on

Mass airflow data monitor
6 % < relative charge <120 %
-20° < induction air temperature < 85 °C
560 1 rpm < engine speed < 7200 rpm
Time after start > 30 sec.
Regardless of whether EVAP is active/inactive

Warnings
Service Notes
1) Visual inspection of HFM plug contacts
2) Check wiring between HFM and DME
3) Check induction system/crankcase for leaks (the positive crankcase ventilation system can allow vacuum leaks with air from the crankcase entering the manifold, for instance, if vacuum line from brake booster to vacuum pump is leaking)
4) Check for DISA diagnostic fault code entries and DISA control operation (DISA fault does not prevent HFM plausibility check)
5) Carry out VVT travel limit initialization routine