P2440

27B2 - P2440

Information saved in
DME

Fault code
27B2 - P2440

Fault text
Secondary air system flow rate, main branch

Fault description
Secondary Air Injection System Switching Valve Stuck
Open (Bank 1)

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. Replace electric pilot valve
2. If fault is still present, look for leaks in main line.

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

Driver information
Warning light:
MIL

Service instruction
none