27E1

27E1 - P013A

Information saved in
DME

Fault code
27E1 - P013A

Fault text
Oxygen sensor behind catalytic converter, bank 1, signal

Fault description
O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2)

Condition for fault identification
Test condition:
* Determination of dropout time between
K_LANK_OBD_SLOPE_F_MAX-% and
K_LANK_OBD_SLOPE_F_MIN-% of the sensor's initial
status
* Attempt averaging dropout times using
K_LANK_OBD_SLOPE_CNT
* Check whether dropout time <
KF_LANK_OBD_SLOPE_ML_T
Terminal condition: Engine running
Voltage condition:
none

Condition for fault memory entry
The oxygen sensor's drop-out time is monitored and
averaged during K_LANK_OBD_SLOPE_CNT_IO SA
phases

Action in service
1. Check exhaust system for leaks
2. If OK, replace post-cat oxygen sensor LSNK B1

Fault effect and breakdown warning
MIL on after engine runs 2x / no effects on drivability

Driver information
Warning light:
MIL

Service instruction
none