2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts
none
P166F
2CA7 – P166F
Information saved in
DME
Fault code
2CA7 – P166F
Fault text
Oxygen sensor heating before catalytic converter 2, function
Fault description
Internal Control Module Measurement Error Oxygen Sensor
Heating (Bank 2, Sensor 1)
106
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
