P0137 Geo Code - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
Quick Answer
The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0137 Geo indicates O2 Sensor Circuit Low Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty Rear Heated Oxygen Sensor Bank 1, Rear Heated Oxygen Sensor Bank 1 harness is open or shorted, Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0137 Geo Description
What are the Possible Causes of the DTC P0137 Geo?
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
How to Fix the DTC P0137 Geo?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0137 Geo code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0137 Geo Code
1. What are the common symptoms of OBDII code P0137 (Geo) - O2 Sensor Circuit Low Voltage Bank 1 Sensor 2?
- Common symptoms include poor fuel efficiency, a rough idling engine, and an illuminated check engine light.
2. What are the possible causes of OBDII code P0137 (Geo) indicating O2 Sensor Circuit Low Voltage Bank 1 Sensor 2?
- Potential causes may include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, or issues with the vehicle's engine control module.
3. How can I diagnose the O2 sensor circuit low voltage issue for Bank 1 Sensor 2 in my Geo when the P0137 code is triggered?
- You can use a multimeter to check the voltage output of the affected oxygen sensor, inspect the sensor wiring for any damage, and ensure there are no exhaust leaks near the sensor.
4. Can I continue driving my Geo with the OBDII code P0137 for the O2 sensor circuit low voltage issue?
- It is not recommended to continue driving with this code unresolved, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter over time.
5. How can I repair OBDII code P0137 on my Geo for the O2 Sensor Circuit Low Voltage Bank 1 Sensor 2?
- Repair options may include replacing the faulty oxygen sensor, repairing any damaged wiring, fixing exhaust leaks, or resetting the engine control module.
6. What is the function of Bank 1 Sensor 2 in the O2 sensor circuit of a Geo vehicle?
- Bank 1 Sensor 2 is located downstream of the catalytic converter and helps monitor the efficiency of the catalytic converter by measuring oxygen levels in the exhaust gases.
7. Are there any DIY tips for troubleshooting OBDII code P0137 in my Geo?
- You can visually inspect the sensor and wiring for any obvious issues, check for exhaust leaks, and clean the sensor connectors to see if the code clears.
8. Will a P0137 error code affect the performance of my Geo vehicle?
- Yes, a P0137 error code can impact the vehicle's fuel efficiency and overall engine performance if left unresolved.
9. How long does it typically take to repair OBDII code P0137 (Geo) for the O2 Sensor Circuit Low Voltage Bank 1 Sensor 2?
- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 1-3 hours at a repair shop or longer if DIY troubleshooting is required.
10. Can I reset the check engine light after fixing the OBDII code P0137 on my Geo?
- Yes, you can reset the check engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes to clear the error code.
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