P0160 OBD-II Trouble Code: 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0160 code

P0160 is a diagnostic trouble code (DTC) for "02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0160 DIAGNOSTIC Get a fair and transparent estimate upfront

P0160 code definition

Trouble code P0160 is set when no activity is detected on the bank 2 sensor 2 oxygen sensor circuit. Bank 2 refers to the side of the engine opposite of cylinder number one. Sensor 2 means that it is the second sensor in the exhaust, which is usually after the catalytic converter to monitor its efficiency.

What the P0160 code means

This code means that the powertrain control module has detected a fault in the circuit for the oxygen sensor for bank 2 sensor 2. The Check Engine Light will illuminate to let the owner know that there is a problem with the emissions system.

What causes the P0160 code?

Trouble code P0160 sets when the engine management computer does not detect any activity on the oxygen sensor circuit for bank 2 sensor 2. Generally, an oxygen sensor’s voltage will vary up and down.

The first sensor in the exhaust varies voltage very quickly and the voltage variance is greater. The second sensor varies slower and the voltage variance is smaller due to the catalyst in the exhaust.

When the computer detects that there is no activity or variance in the voltage it sees this as a problem and sets this error code.

What are the symptoms of the P0160 code?

  • The main symptom for this code is that the Check Engine Light will come on.

  • There are no drivability problems typically presented when this code sets other than a potential reduction in fuel economy.

How does a mechanic diagnose the P0160 code?

  • As with any oxygen sensor code, I recommend performing a visual check of the oxygen sensor harness to check for any obvious signs of damage. They are under the vehicle and are susceptible to damage by road hazards.

  • Next, they will check the terminals of the connector for any signs of corrosion or water intrusion. These will cause the voltage readings to be incorrect and will result in an error code.

  • After, they will check the resistance of the oxygen sensor itself and make sure it is within specifications.

  • If the oxygen sensor’s resistance checks out okay, you need to measure the reference voltage from the powertrain control module.

  • If all of these checks turn out okay, it is most likely a faulty oxygen sensor. A quick way to check for this is to monitor the voltage of the sensor with a scan tool and either introduce a vaccum leak or an extra fuel source to the vehicle.

  • This should change the voltage reading to one extreme or the other for the sensor. If there is no change this confirms that the sensor is not reading correctly.

Common mistakes when diagnosing the P0100 code

  • The most common mistake would be replacing the oxygen sensor without performing any diagnostics and then you still have a problem.

  • The next common problem would be be replacing the wrong sensor. Depending on the engine configuration it is possible to get the cylinder banks confused if you do not consult the service information for the vehicle you are working on.

How serious is the P0160 code?

There is no need for concern with the trouble code. There will be no drivability concerns related to this trouble code. However, this trouble code will cause you to fail an emissions test if their test equipment connects to the engine computer to check for codes. If they run your car on a dyno there is a possibility that your car may pass the test as long as there are no other issues.

What repairs can fix the P0160 code?

Need help with a P0100 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P0160
trouble codes
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0160 code.

SCHEDULE P0160 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

5,156

Rating Summary
4,752
196
50
27
131
4,752
196
50
27
131

Al

21 years of experience
14 reviews
Al
21 years of experience
Nissan Pathfinder - Check Engine Light is on - Atlanta, Georgia
Al, was cool and very knowledgeable. Being direct and upfront always works. Al, is a credit to the company.

Xavier

10 years of experience
20 reviews
Xavier
10 years of experience
Chevrolet Equinox - Check Engine Light is on - Frisco, Texas
Xavier was GREAT!!! He made sure that I understood everything that he did to my vehicle and answered all my questions. Very thorough and even worked thru the light rain that we had. When I have to use this service again, I hope to be able to request him!

Luis

14 years of experience
52 reviews
Luis
14 years of experience
Kia Sorento - Check Engine Light is on - Las Vegas, Nevada
Luis did an excellent job in determining that this was a warranty issue on bad parts. He has integrity and is good at what he does. I would highly recommend him for any auto repairs that come up.

Reginald

36 years of experience
32 reviews
Reginald
36 years of experience
BMW 325i - Check Engine Light is on - Los Angeles, California
Reginald was incredibly helpful in helping me to diagnose several issues in my car, as well as repair issues to help me pass a break and light test. He even went so far as to come to the brake and light testing location so that he could ensure that the car passed and be there if anything else needed to be fixed on the spot. Absolutely would recommend him to anyone who is looking for an honest and knowledgeable mechanic!


More related articles

P0491 OBD-II Trouble Code: Secondary Air Injection System Insufficient Flow Bank 1
P0491 code means there is a problem on the side of the engine which contains cylinder #1 due to a bad air inlet, faulty wires, relay, pump, or fuse.
P0402 OBD-II Trouble Code: Exhaust Gas Recirculation Flow Excessive Detected
P0402 code definition Exhaust Gas Recirculation Flow Excessive Detected What the P0402 code means P0402 is an OBD-II generic code that...
P0411 OBD-II Trouble Code: Secondary Air Injection System Incorrect Flow Detected
P0411 code definition The P0411 DTC is a generic OBD-II code that points to a malfunction within the secondary air injection system....

Related questions

Check engine light flashing, sucking fuel, procrastinating when accelerating...

This is a very odd set of symptoms. I would suggest ruling out any fuel-related issues as the poor fuel economy and lack of power could be related to faulty sensors like the throttle body sensor, mass air flow sensor,...

the car has suffocation feeling when accelerator is pressed and does not speed constantly

This sounds like a low fuel pressure problem, or an air filter and mass airflow (MAF) sensor problem. Check the fuel pressure and replace the fuel filter first to see if it helps. Next, have the system computer scanned...

Code P0320 200 Mercury Cougar 2.0l

Hello. A no spark condition can be caused by many things. If the aforementioned components have already been replaced I would move on to looking at the ignition module, and perhaps the wiring to a few specific components. The ignition...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com