Engine Controls System: 2772

2772 - P0153

Information saved in
DME

Fault code
2772 - P0153

Fault text
Oxygen sensor dynamic diagnosis before catalytic
converter, bank 2

Fault description
O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)

Condition for fault identification
Test condition:
Amplitude of oxygen sensor less than diag. value 0.35
(K_LAVK_OBD_DYN_WERT_MAX)
Terminal condition: Engine running - Condition idle or part-
load
Voltage condition:
none

Condition for fault memory entry
none

Action in service
1. Clear fault memory, oxygen sensor system test
2. Check exhaust system for leaks
3. Check pre-cat oxygen sensor LSVK B2

Fault effect and breakdown warning
MIL on after engine runs 2x / possible mild effect on
drivability...surge during steady-state operation

Driver information
Warning light:
MIL

Service instruction
none