P3014

2C3F - P3014

Information saved in
DME

Fault code
2C3F - P3014

Fault text
DME, internal fault: oxygen sensor, evaluation module

Fault description
O2 Sensor WRAF-IC Supply Voltage Too Low (Bank 1
Sensor 1)

Condition for fault identification
Test condition:
Monitoring of O2 sensor chip
No fault memories
Terminal condition: Terminal 15, engine on
Voltage condition:
Voltage in onboard electrical system > 10 V

Condition for fault memory entry
Self-diagnosis open-load analysis chip

Action in service
1. Visual inspection of wires, DME plug and oxygen sensor
for damage
2. Inspect wiring
3. Check plug-in connections linking DME <=> Wiring
harness <=> Precat oxygen sensor
4. Replace oxygen sensor
5. Replace DME

Fault effect and breakdown warning


Driver information
Warning light:
NO

Service instruction
none