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274B - P2629

274B - P2629
Information saved in	DME
Fault code	274B - P2629
Fault text	Oxygen sensor pump current calibration fault before cat. converter, bank 2
Fault description	O2 Sensor Pumping Current Trim Circuit/Open (Bank 2 Sensor 1)
Condition for fault identification	Test condition: Oxygen sensor is available, oxygen sensor voltage > 4951 mV (K_LAVK_OBD_SA_DIAG_OL)
.	Terminal condition: Engine running - overrun condition
.	Voltage condition: none
Condition for fault memory entry	after a defined SA phase the lag period K_LAVK_OBD_SA_T (2.5 sec) must be completed
Action in service	1. Check plug and wiring harness on pre-cat oxygen sensor LSVK B2 (especially trim circuit wire IA),
.	2. If OK, replace oxygen sensor
Fault effect and breakdown warning	MIL lamp on after engine runs 2x /Small influence on drivability
Driver information	Warning light: MIL
Service instruction	None