P1197 – Chrysler DTC

Chrysler DTC P1197 – 1/2 O2 Sensor Slow During Catalyst Monitor

DTC P1197 meaning on Chrysler

DTC P1197 on a Chrysler vehicle indicates that the 1/2 O2 sensor is slow during the catalyst monitor. This diagnostic trouble code (DTC) specifically relates to the oxygen sensor located downstream of the catalytic converter.

Chrysler DTC P1197 symptoms

Symptoms of DTC P1197 on a Chrysler may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Decreased fuel efficiency
• Potential lack of power or performance issues

Chrysler DTC P1197 causes

Common causes of DTC P1197 on a Chrysler include:

• Faulty 1/2 O2 sensor
• Wiring or connector issues related to the O2 sensor
• Catalytic converter problems
• Exhaust leaks

Chrysler DTC P1197 seriousness

While DTC P1197 may not always result in immediate drivability issues, it is important to address this code promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

How to diagnose DTC P1197 on Chrysler

To diagnose DTC P1197 on a Chrysler, follow these steps:

1. Use an OBD-II scanner to retrieve the specific fault code.
2. Inspect the 1/2 O2 sensor and its wiring for any visible damage or corrosion.
3. Check for exhaust leaks near the sensor or catalytic converter.
4. Perform a diagnostic test to monitor the sensor’s response time during the catalyst monitor.

How to fix DTC P1197 on Chrysler

To fix DTC P1197 on a Chrysler, consider the following steps:

1. Replace the 1/2 O2 sensor if it is found to be faulty.
2. Repair or replace any damaged wiring or connectors related to the sensor.
3. Address any issues with the catalytic converter if necessary.
4. Clear the fault code and perform a test drive to ensure the issue is resolved.

How to erase DTC P1197 on Chrysler

To erase DTC P1197 on a Chrysler:

1. Use an OBD-II scanner to clear the fault code from the vehicle’s computer.
2. Ensure that the underlying issue causing the code has been resolved.
3. Perform a final check to confirm that the code does not reappear.

Recommended tools for Chrysler diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.