P1412

27B2 - P1412

Information saved in
DME

Fault code
27B2 - P1412

Fault text
Secondary air system flow rate, main branch

Fault description
Secondary Air Pump/Secondary Air Valve Large Leak

Condition for fault identification
Test condition:
sls_obdh_mdf_max_intg_norm (after roughly 30
s.)>K_SLS_OBDH_MDF_MAX_DEF and
sls_obdh_lam_asv_intg_norm <
k_SLS_OBDH_MDF_1_MAG and >
k_SLS_OBDH_MDF_2_MAG or
Terminal condition: Engine running
Voltage condition:
Battery voltage > 10.8 V (k_sls_obd_ub_min)

Condition for fault memory entry
30000 ms

Action in service
1. Check main harness for leaks and replace secondary air
line as indicated

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

Driver information
Warning light:
MIL

Service instruction
none