P105D
O2 Sensor Heater Circuit Performance Bank 2 Sensor 2 Stuck ON
P105D is an OBD-II diagnostic trouble code meaning: O2 Sensor Heater Circuit Performance Bank 2 Sensor 2 Stuck ON. Common causes: oxygen sensor malfunction, short circuit in the sensor heater circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine Light Is On
- Increased fuel consumption
- Unstable engine operation at idle
- Reduced engine power
- Possible misfires
Causes
- Oxygen sensor malfunction
- Short circuit in the sensor heater circuit
- Problems with the heater circuit relay or fuse
- Engine control unit (ECU) malfunction
- Damage to the wiring harness to the sensor
How to Fix
- Check the condition of the oxygen sensor and its connector
- Check heater circuit for short circuit
- Check fuses and relays associated with the heater circuit
- Replace a faulty oxygen sensor if necessary
- Check and replace wiring harness if necessary
Related codes
FAQ
What does the P105D code mean?
P105D is an OBD-II diagnostic trouble code that indicates: O2 Sensor Heater Circuit Performance Bank 2 Sensor 2 Stuck ON
What causes a P105D error code?
The most common causes of P105D include: Oxygen sensor malfunction; Short circuit in the sensor heater circuit; Problems with the heater circuit relay or fuse; Engine control unit (ECU) malfunction.
How do I fix a P105D diagnostic trouble code?
To fix P105D: Check the condition of the oxygen sensor and its connector. Check heater circuit for short circuit. Check fuses and relays associated with the heater circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P105D?
Yes, but get it checked soon
How much does it cost to fix P105D?
The estimated repair cost for P105D is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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