Engine-CodesDodge – P1197 Dodge

P1197 Dodge Code - Heated Oxygen Sensor Bank 1 Sensor 2 Slow Response

Quick Answer

The P1197 diagnostic trouble code for Dodge vehicles indicates a slow response from the Heated Oxygen Sensor (HO2S) located in Bank 1 Sensor 2. Common causes include Faulty Heated Oxygen Sensor Bank 1 Sensor 2, Wiring or connector issues, Exhaust leaks. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1197 Dodge indicates Heated Oxygen Sensor Bank 1 Sensor 2 Slow Response.
Common causes
Common causes include Faulty Heated Oxygen Sensor Bank 1 Sensor 2, Wiring or connector issues, Exhaust leaks.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1197 Dodge Description

The P1197 diagnostic trouble code for Dodge vehicles indicates a slow response from the Heated Oxygen Sensor (HO2S) located in Bank 1 Sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust gases after they have passed through the catalytic converter. The data provided by this sensor is crucial for the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion efficiency.

OBDII Code P1197 Dodge - Heated Oxygen Sensor Bank 1 Sensor 2 Slow Response
P1197 Dodge Code - Heated Oxygen Sensor Bank 1 Sensor 2 Slow Response

Common Causes of P1197 Dodge

  1. Faulty Heated Oxygen Sensor Bank 1 Sensor 2
  2. Wiring or connector issues
  3. Exhaust leaks
  4. Malfunctioning ECM
  5. Contaminated fuel

Symptoms of P1197 Dodge

  1. Decreased fuel efficiency
  2. Engine misfires
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Failed emissions test

How to Fix P1197 Dodge

  1. Diagnose the root cause of the slow response from the HO2S Bank 1 Sensor 2 using a diagnostic scanner.
  2. Inspect the sensor, wiring, and connectors for any visible damage or corrosion.
  3. Replace the Heated Oxygen Sensor Bank 1 Sensor 2 if it is found to be faulty.
  4. Repair any wiring or connector issues if necessary.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1197 Dodge

The typical repair costs for addressing a P1197 code can range from $150 to $400, depending on the specific cause of the issue and the cost of the replacement parts. Labor costs can vary based on the shop's hourly rates and the complexity of the repair. It's recommended to consult with a certified mechanic or dealership for a more accurate cost estimate based on the vehicle's make and model.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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