Table of Contents
What is P0137 Code?
The P0137 code indicates a low voltage condition in the oxygen sensor (O2 sensor) circuit for Bank 1, Sensor 2. This downstream oxygen sensor, also known as the catalytic converter monitor sensor, plays a crucial role in monitoring the efficiency of your vehicle's catalytic converter and maintaining optimal fuel economy.
Common Symptoms
When your vehicle triggers the P0137 code, you might experience several check engine light related symptoms:
- Illuminated Check Engine Light (CEL)
- Decreased fuel efficiency
- Rough idle or hesitation during acceleration
- Failed emissions test
- Poor engine performance
Professional Diagnostic Solution
For accurate diagnosis of P0137 and other OBD2 codes, we recommend the iCarsoft CR MAX and CR Eagle diagnostic tools. Available at iCarsoft-us.com, these professional-grade scanners offer comprehensive vehicle diagnostics and real-time monitoring capabilities.
Possible Causes
The P0137 trouble code can be triggered by various factors:
- Faulty oxygen sensor
- Damaged wiring or connectors in the O2 sensor circuit
- Exhaust leaks near the sensor
- Failed catalytic converter
- PCM (Powertrain Control Module) issues
Diagnosis Steps
To properly diagnose a P0137 code, follow these steps:
- Connect a professional scan tool like the iCarsoft CR MAX to read all codes and live data
- Inspect the O2 sensor wiring and connections
- Check for exhaust leaks around the sensor
- Test the sensor's heater circuit
- Verify proper sensor voltage readings
Important: Always use a quality diagnostic scanner like the iCarsoft CR Eagle for accurate readings and proper diagnosis. Visit iCarsoft-us.com to explore our range of professional diagnostic tools.
Repair Solutions
Common repairs for P0137 include:
- Replacing the faulty oxygen sensor
- Repairing damaged wiring or connections
- Fixing exhaust leaks
- Replacing the catalytic converter if necessary
- Updating PCM software if applicable
Prevention Tips
To prevent future P0137 codes:
- Regular maintenance of your vehicle's exhaust system
- Using quality fuel and oil
- Periodic diagnostic scans with professional tools
- Addressing check engine lights promptly
Recommended Diagnostic Tools
For professional-grade diagnostics, we recommend:
- iCarsoft CR MAX - Advanced multi-system diagnostic tool
- iCarsoft CR Eagle - Professional OBD2 scanner with enhanced features
Why Choose iCarsoft Diagnostic Tools?
Our diagnostic scanners offer:
- Comprehensive vehicle coverage
- Real-time data monitoring
- Advanced diagnostic features
- User-friendly interface
- Regular software updates
