P2245
O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1
P2245 is an OBD-II diagnostic trouble code meaning: O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1. Common causes: malfunction of the oxygen sensor (lambda probe), open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Increased fuel consumption
- Unstable engine idling
- Reduced engine power
- Dips during acceleration
Causes
- Malfunction of the oxygen sensor (lambda probe)
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Corrosion or oxidation of contacts
- Problems with the engine control unit (rare)
How to Fix
- Check the integrity of the sensor wiring and connectors
- Clean contacts from oxides and corrosion
- Check the reference voltage at the sensor
- Replace the oxygen sensor if necessary
- Check and replace wiring harness if necessary
Related codes
Error P2245 by Vehicle Brand
FAQ
What does the P2245 code mean?
P2245 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Reference Voltage Circuit Low Bank 1 Sensor 1
What causes a P2245 error code?
The most common causes of P2245 include: Malfunction of the oxygen sensor (lambda probe); Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Corrosion or oxidation of contacts.
How do I fix a P2245 diagnostic trouble code?
To fix P2245: Check the integrity of the sensor wiring and connectors. Clean contacts from oxides and corrosion. Check the reference voltage at the sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2245?
Yes, but get it checked soon
How much does it cost to fix P2245?
The estimated repair cost for P2245 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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