P0038

272C - P0038

Information saved in
DME

Fault code
272C - P0038

Fault text
Oxygen sensor, output-stage diagnosis, heater behind cat.,
bank 1

Fault description
HO2S Heater Control Circuit High (Bank 1 Sensor 2)

Condition for fault identification
Test condition:
Driver info includes short circuit to battery voltage
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 oxygen sensor
LSNK B1,
2. If OK replace sensor

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

Driver information
Warning light:
MIL

Service instruction
none