P0057

272D - P0057

Information saved in
DME

Fault code
272D - P0057

Fault text
Oxygen sensor, output-stage diagnosis, heater behind cat.,
bank 2

Fault description
HO2S Heater Control Circuit Low (Bank 2 Sensor 2)

Condition for fault identification
Test condition:
Driver info includes short circuit to ground
Terminal condition: none
Voltage condition:
none

Condition for fault memory entry
100 ms

Action in service
1. Check plug and wiring harness on post-cat sensor LSNK
B2,
2. If OK replace sensor

Fault effect and breakdown warning
MIL on after engine runs 2x

Driver information
Warning light:
MIL

Service instruction
none