P0031

273E - P0031

Information saved in
DME

Fault code
273E - P0031

Fault text
Oxygen sensor final stage diagnosis heater before cat.
converter, bank 1

Fault description
HO2S Heater Control Circuit Low (Bank 1 Sensor 1)

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

Condition for fault memory entry
5000 ms

Action in service
1. Check plug and wiring harness on pre-cat oxygen sensor
LSVK B1,
2. If OK replace oxygen sensor

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

Driver information
Warning light:
MIL

Service instruction
none