AutoCodes – Toyota – P0136 2001 Toyota Camry

P0136 2001 Toyota Camry Code - Heated Oxygen Sensor Circuit Malfunction 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 2001 Toyota Camry indicates Heated Oxygen Sensor Circuit Malfunction 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.

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Code Popularity 11,815

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0136 2001 Toyota Camry Description

The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.

OBDII Code P0136 2001 Toyota Camry - Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2 - AutoCodes.com — P0136 2001 Toyota Camry Code - Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0136 2001 Toyota Camry?

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 2001 Toyota Camry?

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.

What does this mean?

Code Tech Notes

Replacing the Rear Heated Oxygen Sensor Bank 1 usually takes care of the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0136 2001 Toyota Camry 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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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.

Frequently Asked Questions about P0136 2001 Toyota Camry Code

1. What are the common symptoms of OBDII code P0136 in a 2001 Toyota Camry?

- Common symptoms include poor fuel economy, rough idling, engine misfires, and the illumination of the check engine light.

2. What does the OBDII code P0136 on a 2001 Toyota Camry mean?

- This code indicates a Heated Oxygen Sensor Circuit Malfunction in Bank 1 Sensor 2, which is the downstream oxygen sensor after the catalytic converter.

3. What are some possible causes of the P0136 code in a 2001 Toyota Camry?

- Potential causes include a faulty oxygen sensor, wiring issues, a blown fuse, exhaust leaks, or a problem with the engine's computer.

4. How can I diagnose the cause of the P0136 code on my 2001 Toyota Camry?

- You can use a scan tool to monitor oxygen sensor data, visually inspect the sensor and wiring, check for exhaust leaks, and test the sensor's heater circuit.

5. Can I continue driving my 2001 Toyota Camry with the P0136 code present?

- It's generally not recommended to drive with this code, as it can lead to decreased fuel efficiency and potential damage to the catalytic converter.

6. How can I repair the Heated Oxygen Sensor Circuit Malfunction in Bank 1 Sensor 2 on my 2001 Toyota Camry?

- Repair options may include replacing the oxygen sensor, repairing or replacing damaged wiring, checking and replacing fuses if necessary, and clearing the code with a scan tool.

7. How much does it typically cost to fix the P0136 code on a 2001 Toyota Camry?

- The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can I reset the check engine light after fixing the P0136 code on my 2001 Toyota Camry?

- Yes, you can reset the check engine light using an OBDII scanner or by disconnecting the car's battery for a few minutes.

9. Will the P0136 code cause my 2001 Toyota Camry to fail an emissions test?

- Yes, the presence of this code can cause your vehicle to fail an emissions test, as it indicates a problem with the oxygen sensor and emissions control system.

10. How often does the Heated Oxygen Sensor Circuit Malfunction code occur in a 2001 Toyota Camry?

- This code can occur due to various factors, including age, mileage, and driving conditions, so it's essential to address the issue promptly to prevent further problems.