AutoCodes – BMW – P0160 BMW

P0160 BMW Code - O2 Sensor Circuit No Activity Detected Bank 2 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 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 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: P0160 BMW indicates O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2.
Common causes: Common causes include Faulty Rear Heated Oxygen Sensor Bank 2, Rear Heated Oxygen Sensor Bank 2 harness is open or shorted, Rear Heated Oxygen Sensor Bank 2 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 25,809

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
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0160 BMW 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 P0160 BMW - O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2 - AutoCodes.com — P0160 BMW Code - O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P0160 BMW?

Faulty Rear Heated Oxygen Sensor Bank 2
Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

How to Fix the DTC P0160 BMW?

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 2 usually takes care of the problem

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0160 BMW 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 P0160 BMW Code

1. What are the common symptoms of OBDII code P0160 in a BMW?

- Common symptoms include poor fuel economy, rough idling, and an illuminated check engine light.

2. What does the OBDII code P0160 BMW indicate?

- This code indicates that the O2 sensor circuit for Bank 2 Sensor 2 is not detecting any activity.

3. What are the possible causes of OBDII code P0160 in a BMW?

- Possible causes include a faulty O2 sensor, damaged wiring or connectors, exhaust leaks, or a faulty engine control module.

4. How can I diagnose the O2 sensor circuit for Bank 2 Sensor 2 in my BMW?

- You can use a multimeter to test the sensor's voltage output, visually inspect the wiring and connectors for damage, and perform a smoke test to check for exhaust leaks.

5. Can I drive my BMW with OBDII code P0160?

- It is not recommended to drive your BMW with this code present, as it can lead to decreased fuel efficiency and potential engine damage if left unresolved.

6. How do I repair OBDII code P0160 in my BMW?

- To repair this code, you may need to replace the O2 sensor for Bank 2 Sensor 2, repair any damaged wiring or connectors, and clear the code using an OBDII scanner.

7. How much does it cost to fix OBDII code P0160 in a BMW?

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

8. Can I reset the OBDII code P0160 in my BMW without fixing the underlying issue?

- While you can reset the code using an OBDII scanner, it is important to address the underlying issue to prevent further damage to your vehicle.

9. How long does it take to repair OBDII code P0160 in a BMW?

- The repair time can vary depending on the extent of the issue, but it typically takes around 1-2 hours to replace the O2 sensor and address any wiring issues.

10. Are there any DIY tips for troubleshooting OBDII code P0160 in my BMW?

- DIY tips include checking the sensor's wiring for damage, ensuring proper sensor installation, and using a scan tool to monitor sensor activity in real-time.