2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 165
Test condition:
Monitoring of O2 sensor chip
No fault memories
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
Self-diagnosis processor chip has short to positive
Action in service
1. Visual inspection of wires, DME plug and O2 sensor for
damage
2. Check wires
3. Check plug-in connections DME <=> Wiring harness
<=> Upstream (pre-cat) O2 sensor for Bank 2
4. Check wiring harness for shorts to positive or ground and
shorts/shunt to other bank (melted?) => Replace wiring
harness
5. Replace O2 sensor
6. Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2C41 - P3022 (DME)
2C41 - P3022
Information saved in
DME
Fault code
2C41 - P3022
Fault text
DME, internal fault: oxygen sensor
Fault description
O2 Sensor Disturbed SPI Communication to WRAF-IC
(Bank 1 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
锟紺
Action in service
Replace DME
Fault effect and breakdown warning
