Skip the auto shop - Our mechanics make house calls

P2137 OBD-II Trouble Code: A Camshaft Position Actuator Control Circuit Low Bank 2

Check Engine Light

What the P2137 code means?

P2137 is an OBD-II generic code for the engine control module (ECM) detecting the throttle pedal position sensors B and C voltages do not correlate to each other for return voltage to the ECM.

What causes the P2137 code?

  • The ECM monitors the throttle position sensor (TPS) and has detected the B and C sensors signal return to the ECM do not correlate with each other.

  • One of the sensors has an internal fault.

  • The sensor circuit or connector has a loose or broken connection.

What are the symptoms of the P2137 code?

  • The Check Engine light will be illuminated and the code is set in ECM memory as a fault. The light will stay on unless the problem goes away for more than three running cycles.

  • The TPS has redundant sensors for the throttle position and may not have a drive complaint on some vehicles.

  • On some vehicles, the vehicle may go into limp home mode and limit the throttle opening and throttle response.

How does a mechanic diagnose the P2137 code?

  • Scans for codes and documents the code in the ECM and looks at the freeze frame data for failure.

  • Checks the TPS wiring and connection for loose or corroded connectors.

  • Scans and views data from the TPS while operating throttle to see which sensor is failing or not correlating.

  • Follows the manufacturer pinpoint tests for the diagnosis and replacement of the TPS.

  • On some vehicles, the two TPS sensors B and C may be inside the same sensor and would be replaced as a single unit.

Common mistakes when diagnosing the P2137 code?

  • Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired

  • Failing to clear the ECM codes after the codes are fixed

  • Replacing the TPS without verifying the sensor has a problem

How serious is the P2137 code?

Code P2137 is a problem with the TPS and this can cause no throttle control problems and should be fixed immediately. The TPS is needed to control the throttle opening and closing.

What repairs can fix the P2137 code?

  • Replace the TPS assembly if it is a single unit for both sensors or replace the failed sensor if they are two separate sensors.

  • Repair the connector pins of corrosion or loose connections at the TPS or the ECM.

Additional comments for consideration regarding the P2137 code

Code P2137 is for a code that two TPS sensor signals do not agree with each other on throttle movement. Most vehicles will have a single sensor assembly that houses multiple sensors in one. It is replaced as an assembly.

Need help with a P2137 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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...


Related questions

Q: My car is a Nissan Navara. My Check Engine Light is on and my acceleration is not well.

Hi there. It seems that the engine you have is a diesel engine. The code P2002 is coming up for the particulate filter and it has an efficiency issue. The only thing to do with this is replace the particulate...

Q: Check Engine light on with specific codes.

I would like to start off by saying that the numbers you gave only contain two trouble codes, which are Codes P0405 and P0455. The 01/02 is code 1 of 2 and 02/02 is code 2 of 2. The KWP...

Q: Hello, my car has no spark, no controlled ground for the fuel pump, and no injector pulse. Fuse link close to the battery and relays are good.

Hello and thank you for contacting YourMechanic. The ECU is under your passenger's side seat. You can gain access to it by simply sliding the seat all the way forward and removing the plastic cover from the ECU. You can...