The powertrain control module (PCM) controls many important systems and functions in your vehicle, such as the fuel system, ignition system, and transmission.
If it detects any errors or discrepancies, it may trigger trouble codes like P061B. These codes must be taken seriously because they can be related to severe issues.
If a P061B code shows up while you’re using a scan tool to check your vehicle, here’s what it may mean:
What Does Code P061B Mean?
The P061B code indicates an issue with the engine torque monitoring system. This can sound very confusing to beginner hobbyists and DIYers alike, and it often indicates a fairly niche issue within the engine.
The problem has to do with your vehicle’s monitoring self-tests for the internal engine torque; if there is a serious discrepancy between the desired level of torque and the actual level of torque your vehicle’s powertrain control module (PCM) is sensing, then it will store this code.
The torque of your engine is a rotating force that your engine’s crankshaft produces, which is part of its ability to take off and go very quickly.
There are a number of monitoring processors that go into determining and testing the engine torque, including the transmission control module (TCM), traction control module (TCSM), mass air flow (MAF) sensor, and accelerator pedal position (APP) sensor.
Issues with any of these elements can cause the P061B code, which is why this code can be so complicated.
Potential Causes of a P061B Code
Many complications may contribute to the triggering of a P061B code. Here are some of its most common causes:
- Issues with the PCM, such as software in need of an update
- Sensor problems (e.g., faulty throttle position or mass air flow sensor)
- Wiring issues, such as short circuits or corroded or defective connectors
- Clogged, missing, poor fitting, or dirty air filter
What are the Common Symptoms of the P061B Code?
The P061B code is generally difficult to diagnose because its triggering may be related to a wide range of symptoms. Here are its most common signs:
- Poor engine performance and fuel efficiency
- Engine may become difficult to start or not start at all
- Stalling
- Hesitation when accelerating
- Presence of other MAF or throttle actuator trouble codes
- Vehicle stuck in “limp” mode
How to Fix P061B Code?
- Connect the scanner to the vehicle diagnostic port and retrieve all stored codes and freeze frame data. After recording all pertinent information, clear the codes and test drive the vehicle until the code is reset or the PCM enters readiness mode.
- If the PCM enters readiness mode, the code is intermittent and will be more difficult to diagnose. The condition, which caused the P061B to be stored, may even need to worsen before a diagnosis can be made. If the code is reset, continue with this short list of preliminary tests.
- Use your source of vehicle information to obtain connector face views, connector pin-out charts, component locators, wiring diagrams, and diagnostic flow charts related to the code and vehicle in question
- Use the DVOM to test controller power supply fuses and relays. Test and replace blown fuses as required. Fuses should be tested with the circuit loaded.
- If all fuses and relays appear to be functioning as intended, a visual inspection of controller related wiring and harnesses is in order.
- You will also want to check chassis and engine ground junctions. Use your vehicle information source to obtain ground locations for related circuits. Use the DVOM to test ground integrity.
- Visually inspect system controllers for signs of water, heat, or collision damage. Any controller that is damaged, especially by water, should be considered defective.
- Correct diagnosis and repair may require years of training and experience that only professionals have. The best way to address the issues that trigger a P061B code is by consulting your mechanic.
How Much Does It Cost to Fix a P061B Code?
The cost to fix a P061B OBD II code, which indicates an “Internal Control Module Torque Calculation Performance” issue, can range between $100 and $500 depending on the underlying cause and whether it requires a simple sensor cleaning or a full component replacement, like the Mass Airflow Sensor or Throttle Position Sensor.