P3023

2C42 - P3023

Information saved in
DME

Fault code
2C42 - P3023

Fault text
DME, internal fault: oxygen sensor 2

Fault description
O2 Sensor Disturbed SPI Communication to WRAF-IC
(Bank 2 Sensor 1)

Condition for fault identification
Test condition:
Monitoring of O2 sensor chip
No fault memories
Terminal condition: Terminal 15 ON
Voltage condition:
none

Condition for fault memory entry
Self-diagnosis processor chip: Communications fault with
�C

Action in service
Replace DME

Fault effect and breakdown warning


Driver information
Warning light:
MIL ON

Service instruction
none