P2195: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1
What Does P2195 Mean?
P2195 is a diagnostic trouble code indicating: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1. This code relates to the powertrain system. It has been reported in NHTSA complaints across 6 different vehicle models.
Symptoms of P2195
- ⚠️ Check engine light illuminated
Common Causes
- 🔍 Faulty oxygen sensor
- 🔍 Sensor or control module malfunction
P2195 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"IN JANUARY OF 2013 AND AGAIN IN DECEMBER OF 2013, MY "CHECK ENGINE" LIGHT CAME ON. I TOOK THE CAR INTO THE TOYOTA DEALERSHIP IN SAN LUIS OBISPO AND THEY SAID THAT THE O2 SENSOR WAS MALFUNCTIONING, CAUSING THE ENGINE TO RUN TOO LEAN. THE FIRST TIME THIS HAPPENED (JANUARY, 2013) THE SERVICE WRITER GAV"
— Toyota Corolla owner, 01/03/2014
"THE CHECK ENGINE LIGHT CAME ON WITH THE VSC AND SLIP LIGHTS ON THE DASH. HAD IT SCANNED AND THE CODES ARE P2195 AND P0138. I AM HAVING A HUGE PROBLEM WITH THIS, I FEEL THAT TOYOTA SHOULD COVER THIS PROBLEM OR ATLEAST MOST OF IT. IT'S $1700 TO FIX THIS PROBLEM THAT MANY AVALON OWNERS ARE OR HAVE HAD "
— Toyota Avalon owner, 03/17/2014
"ON THURSDAY EVENING, 11/22/2018, I WAS COMING TO A STOP AT A LIGHT ON A CITY STREET (SPEED LIMIT 35) WHEN MY CAR STALLED WITHOUT WARNING. MOVING AT MOST 25 MPH WHEN IT OCCURRED, THE OIL AND BATTERY LIGHTS CAME ON AS I SLOWED. I TRIED ACCELERATING SLIGHTLY TO DIAGNOSE THE ISSUE, AND NOTHING HAPPENED."
— Ford Focus owner, 11/22/2018
Source: NHTSA Complaints Database
Most Reported Vehicles for P2195
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | FORD FOCUS | |
| 2 | FORD EDGE | |
| 3 | TOYOTA COROLLA | |
| 4 | TOYOTA AVALON | |
| 5 | FORD RANGER | |
| 6 | MERCEDES-BENZ E-CLASS |
P2195 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Frequently Asked Questions
Can I drive with this code?
Will this code clear itself?
How do I find the exact cause?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Test the relevant sensor(s) with a multimeter before replacing
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.