27B0 - P2448 (DME)
27B0 - P2448Informati
on saved
in
DME
Fault
code
27B0 - P2448
Fault text
Secondary air-injection system flow rate, Bank 1
Fault
descriptio
n
Condition
for fault
identifica
tion
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 (after roughly 30 sec.) >
K_Sekund�rluftsystem_OBDH_MDF_Min_DEF and
sls_obdh_lam_asv_intg_norm <
k_Sekund�rluftsystem_OBDH_MDF_2_MAG or
sls_obdh_lam_asv_intg_norm <
k_Sekund�rluftsystem_OBDH_Absperrventil_LI_OPE and
K_Sekund�rluftsystem_OBDH_MDF_Min_DEF
Action in
service
1. Inspect the Bank 1 secondary air-injection line to ensure that it is tight
and securely connected and check for leaks.
Fault
effect and
breakdow
n
warning
MIL is on after 2x engine cold start
Driver
informati
on
Warning light:
No
Service
instructio
n
none