P0136 Hyundai Code - HO2S Circuit 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
- P0136 Hyundai indicates HO2S Circuit 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 P0136 Hyundai Description
What are the Possible Causes of the DTC P0136 Hyundai?
- 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 P0136 Hyundai?
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 P0136 Hyundai 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 P0136 Hyundai Code
1. What are the common symptoms of OBDII code P0136 Hyundai related to the HO2S Circuit Bank 1 Sensor 2?
- Common symptoms include a decrease in fuel efficiency, rough idling, engine misfires, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P0136 in a Hyundai, specifically related to the HO2S Circuit Bank 1 Sensor 2?
- The code P0136 typically indicates a fault in the HO2S (Heated Oxygen Sensor) Circuit for Bank 1 Sensor 2, which could be caused by a faulty oxygen sensor, damaged wiring, or a malfunctioning engine control module (ECM).
3. How can I diagnose and repair OBDII code P0136 in my Hyundai relating to the HO2S Circuit Bank 1 Sensor 2?
- Diagnosis involves inspecting the oxygen sensor and its wiring for any signs of damage or corrosion. Repair may involve replacing the oxygen sensor, repairing wiring connections, or reprogramming the ECM.
4. Can a dirty or clogged catalytic converter cause OBDII code P0136 in a Hyundai with respect to the HO2S Circuit Bank 1 Sensor 2?
- Yes, a dirty or clogged catalytic converter can cause improper readings from the oxygen sensor, triggering code P0136. It is advisable to inspect and clean or replace the catalytic converter if necessary.
5. Is it safe to continue driving my Hyundai if OBDII code P0136 related to the HO2S Circuit Bank 1 Sensor 2 is present?
- It is generally safe to drive the vehicle for a short period if the symptoms are mild. However, it is recommended to address the issue promptly to prevent potential damage to the engine or emissions system.
6. Can a loose gas cap trigger OBDII code P0136 in a Hyundai due to the HO2S Circuit Bank 1 Sensor 2 issue?
- A loose gas cap is unlikely to directly cause code P0136. However, it is always good practice to ensure the gas cap is properly tightened to prevent other potential issues related to the fuel system.
7. How do I reset the check engine light after repairing OBDII code P0136 in my Hyundai related to the HO2S Circuit Bank 1 Sensor 2?
- The check engine light can be reset using an OBDII scanner or by disconnecting the car battery for a few minutes. However, it is important to ensure that the underlying issue causing the code has been properly addressed.
8. Can extreme weather conditions affect the HO2S Circuit Bank 1 Sensor 2 and trigger OBDII code P0136 in a Hyundai?
- Yes, extreme temperatures or harsh weather conditions can impact the performance of the oxygen sensor and its circuit, potentially leading to the triggering of code P0136. Insulating or protecting the sensor may help mitigate this issue.
9. What is the role of the HO2S Bank 1 Sensor 2 in a Hyundai's emission control system, and why is it important to address issues related to this sensor?
- The HO2S Bank 1 Sensor 2 monitors the oxygen levels in the exhaust system, helping to ensure the vehicle meets emission standards. Addressing issues with this sensor is crucial for optimal engine performance, fuel efficiency, and environmental impact.
10. Will a routine maintenance check at a Hyundai dealership help prevent OBDII code P0136 related to the HO2S Circuit Bank 1 Sensor 2 from occurring?
- Regular maintenance checks at a Hyundai dealership can help detect potential issues early on, including those related to the HO2S Circuit Bank 1 Sensor 2. This can prevent code P0136 and other related problems, ensuring the vehicle's optimal performance.
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