🔍

P2197: O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1

Severity
Low
NHTSA Reports
2
Vehicles Affected
1
System
Powertrain

What Does P2197 Mean?

P2197 is a diagnostic trouble code indicating: O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 1. This code relates to the powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"This is in reference to Field Service Action 13N02 with codes P2195 and P2197. There was an extended warranty, but I never knew that as I bought the vehicle pre-owned. I am a college student and the vehicle poses a danger as I am not able to stop every time. I called the local Ford dealership, and w"

— Ford Edge owner, 07/25/2025

"I purchased this vehicle used in August 2025 from the estate of a friend's relative. The records show it was meticulously maintained and no recall notices have been unaddressed. The prior owner used it infrequently and it still has just under 90k miles. There were no major engine issues when my loca"

— Ford Edge owner, 12/04/2025

Source: NHTSA Complaints Database

Most Reported Vehicles for P2197

Based on NHTSA owner complaint data.

# Vehicle Reports
1 FORD EDGE

P2197 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

Frequently Asked Questions

Can I drive with this code?
It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.
Will this code clear itself?
Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.
How do I find the exact cause?
A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

  • 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
  • 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes