P2442

27B1 - P2442

Information saved in
DME

Fault code
27B1 - P2442

Fault text
Secondary air-injection system flow rate, Bank 2

Fault description


Condition for fault identification
Test condition:
Continuous compliance with secondary air-injection system
conditions
Terminal condition: Engine running
Voltage condition:
ub > K_DIAG_TR_Plus_Min

Condition for fault memory entry
sls_obdh_mdf_max_intg_norm (following end of secondary
air system operation) >
K_Sekund�rluftsystem_OBDH_Sekund�rluftventil_Max
sls_obdh_lam_asv_intg_norm above threshold

Action in service
1. Perform system test
2. Replace shutoff valve as indicated

Fault effect and breakdown warning
MIL is on after 2x engine cold start

Driver information
Warning light:
No

Service instruction
none