[regular guy]

27B0 - P0491

27B0 - P0491
Information saved in	DME
Fault code	27B0 - P0491
Fault text	Secondary air system flow rate, bank 1
Fault description	Secondary Air Injection System Insufficient Flow (Bank 1)
Condition for fault identification	Test condition: sls_obdh_mdf_max_intg_norm (after roughly 30s)<K_SLS_OBDH_MDF_MIN_DEF and
.	sls_obdh_lam_asv_intg_norm < k_SLS_OBDH_MDF_2_MAG or
.	sls_obdh_lam_asv_intg_norm < k_SLS_OBDH_ASV_LI_OPE and K_SLS_OBDH_MDF_MIN_DEF>K_SLS_OBDH_MDF_MAX_DEF
.	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. Disconnect secondary air line
.	2. Carry out test routine
.	3. If flow is too high, replace the ASV
.	4. Otherwise check Line 1 for obstructions and replace as indicated
Fault effect and breakdown warning	MIL is on after 2x engine cold start
Driver information	Warning light: MIL
Service instruction	None