Fault Code P0161
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0161
O2 Sensor Heater Circuit (Bank 2 Sensor 2)
Malfunction in the heater circuit of the rear oxygen sensor on bank 2 (sensor 2).
Part Details
Part Name
Rear oxygen sensor (O2 Sensor)
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪250 - ₪800
Engine Location
Exhaust pipe, after the catalytic converter — bank 2 side
Symptoms
- Check Engine light on
- Usually no noticeable effect on driving
Possible Causes
- 1Blown heater fuse
- 2Faulty sensor heater element
- 3Faulty wiring
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