P2195 on 2007-2017 Toyota Camry (LE, SE, XLE, XSE, Hybrid) — O2 Sensor Signal Biased/Stuck Lean (Bank 1, Sensor 1)
1 vehicles · 1 makes · $150-$350 repair
Most Reported On
P2195 is an OBD-II diagnostic trouble code meaning “O2 Sensor Signal Biased/Stuck Lean (Bank 1, Sensor 1).” The PCM detected that the upstream (sensor 1) oxygen/air-fuel sensor on bank 1 is stuck reporting a lean signal (consistently low voltage, above ~0.45V never reached) and is not switching/responding as the mixture changes. The sensor signal is biased lean and unresponsive. This code is most commonly reported on 2007-2017 Toyota Camry (LE, SE, XLE, XSE, Hybrid), with repair costs ranging from $150 to $350.
Common Causes
Typical Repair Cost
Based on 1 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P2195, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
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BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
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- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
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A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
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Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
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- Oil reset, EPB, BMS, TPMS, injector coding
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FAQ
What does P2195 mean?
P2195 stands for "O2 Sensor Signal Biased/Stuck Lean (Bank 1, Sensor 1)." The PCM detected that the upstream (sensor 1) oxygen/air-fuel sensor on bank 1 is stuck reporting a lean signal (consistently low voltage, above ~0.45V never reached) and is not switching/responding as the mixture changes. The sensor signal is biased lean and unresponsive.
What are the most common causes of P2195?
The most common causes of P2195 are: Failed/aged upstream O2 (A/F) sensor bank 1, Exhaust leak near the sensor introducing air, Actual lean condition (vacuum leak, low fuel pressure), Contaminated sensor (silicone/coolant), Sensor wiring/connector fault. The specific cause varies by vehicle.
How much does it cost to fix P2195?
Repair costs for P2195 range from $150 to $350, depending on the vehicle and root cause.
Which vehicles are affected by P2195?
Au7o has documented P2195 across 1 vehicle models from 1 manufacturers: Toyota.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.