2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 112
1. Visual inspection of wires, DME plug and O2 sensor for
damage
2. Check wires (including resistance)
3. Check plug-in connections DME Wiring harness
Upstream (pre-cat) O2 sensor on Bank 1 (water or
corrosion in the plug? => Repeatedly disconnect the plug
and then FIRMLY press it back in)
4. Replace O2 sensor
5. Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2CA6 – P165F (DME)
2CA6 – P165F
Information saved in
DME
Fault code
2CA6 – P165F
Fault text
Oxygen sensor heating before catalytic converter, function
Fault description
Internal Control Module Measurement Error Oxygen Sensor
Heating (Bank 1, Sensor 1)
Condition for fault identification
Test condition:
Internal control-module fault, attempt to determine O2
sensor temperature failed
No fault memories
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
Processor chip monitor, no valid temperature for more than
5 sec.
Action in service
Replace DME
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
(DME) Condition For Fault Memory Entry – None
