[regular guy]

27C5 - P2430

27C5 - P2430
Information saved in	DME
Fault code	27C5 - P2430
Fault text	Air-mass sensor, secondary air, plausibility
Fault description	Secondary Air Injection System Air Flow/Pressure Sensor Circuit (Bank 1)
Condition for fault identification	Test condition: sls_obd_max after 10 sec. SLS operation under KL_SLS_OBD_HFM_DIAG_MIN or after 20 sec. SLS_operation sls_obdh_mdf_max_intg_norm < K_SLS_OBDH_EUV_MIN_DEF and higher exhaust gas lamda
	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. Remove secondary air line from secondary air pump
	2. Conduct test routine
	3. If secondary air pump runs/air flows out, and error is still logged, replace the mini-HFM
Fault effect and breakdown warning	MIL is on after 2x engine cold start
Driver information	Warning light: MIL
Service instruction	None