27AD

27AD - P121B

Information saved in
DME

Fault code
27AD - P121B

Fault text
Bank 2 positive crankcase ventilation diagnosis

Fault description


Condition for fault identification
Test condition:
Idle, v == 0, t�l > K_KGE_TOEL, tmot > K_KGE_TMOT,
abs (smg_ax_berg) < K_KGE_AX_BERG, abs (can_ay) <=
K_KGE_AY, time_ml > K_KGE_TIME_ML, pumg >
K_KGE_PUMG_Max, Oz_nivr >=
K_KGE_OZ_NIVR_Min,Oz_nivr <=
K_KGE_OZ_NIVR_Max, No HFM,Pumg,Vanus,V-Fe
Terminal condition: Engine running
Voltage condition:
none

Condition for fault memory entry
kge_ml_mw_intg < KL_KGE_Min_INTG

Action in service
1. Check all hose connections at intake manifold from intake
silencer and HFM back to the positive crankcase ventilation
and hose connection fittings on intake runners to inspect for
leaks, seal as required.
2.) Check engine oil level and correct as required.

Fault effect and breakdown warning
MIL on after engine runs 2x

Driver information
Warning light:
No

Service instruction
none