2CA9

2CA9 - P0161

Information saved in
DME

Fault code
2CA9 - P0161

Fault text
Oxygen sensor heating behind catalytic converter 2, function

Fault description
O2 Sensor Heater Circuit (Bank 2 Sensor 2)

Condition for fault identification
Test condition:
Oxygen sensor behind cat. heater on
Exhaust-gas temperature at sensor (model)
Dew point end reached 140 sec. after heater assumes
operation
Terminal condition: Terminal 15 on
Engine running
Voltage condition:
Battery voltage
11V < battery voltage < 16V

Condition for fault memory entry
Time
26 sec./continuous

Action in service
Replace LSH

Fault effect and breakdown warning


Driver information
Warning light:
MIL on

Service instruction
none