273C

273C - P2414

Information saved in
DME

Fault code
273C - P2414

Fault text
Oxygen sensor, part/full-load diagnosis, before cat., Bank 1

Fault description


Condition for fault identification
Test condition:
* Engine temperature > K_LAVK_OBD_TMOT * Air mass
K_LAVK_OBD_Teillast_ML_SUM must have flowed
through since detection of renewed operation * Oxygen
sensor temperature > K_LAVK_OBD_VK_TEMP
Terminal condition: Partial load or WOT/full-load
Voltage condition:
none

Condition for fault memory entry
Oxygen sensor voltage less than
K_LAVK_OBD_Teillast_SCHW_Max and greater than
K_LAVK_OBD_Teillast_SCHW_Min for a number of
K_LAVK_OBD_Teillast_CNT after a response lag at start
of operation of K_LAVK_OBD_Teillast_T seconds

Action in service
1. Install oxygen sensor in exhaust system (oxygen sensor
exposed to ambient air)

Fault effect and breakdown warning
MIL lamp lights up after engine runs 2x / Possible negative
effect on drivability

Driver information
Warning light:
No

Service instruction
none