P0411

27B2 - P0411

Information saved in
DME

Fault code
27B2 - P0411

Fault text
Secondary air system flow rate, main branch

Fault description
Secondary Air Injection System Incorrect Flow Detected

Condition for fault identification
Test condition:
sls_obdh_lam_asv_intg_norm above threshold
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. If vacuum-controlled secondary air valve SLV (prod. date
09/04 - ??/05) is still installed, replace it.
2. Carry out secondary air pump test using secondary air
pump relay
3. Check main line for reduction in effective diameter
4. Check mini-HFM, replace as indicated

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

Driver information
Warning light:
MIL

Service instruction
none