P064B OBD Error Code: Problem & Solutions

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What is a PTO control module? What causes the P064B code to be stored in the system? This is a common type of trouble code applicable to many OBD – II vehicles. Despite being common, the repair procedure will vary depending on the year, make and model of engine and another configuration. If there is a malfunction in the power take off, then the P064B code will be set.

The PTO takes care of various functions like activating the specified lighting, increasing engine RPM, as well as disengagement of drive wheels. PTO controller is a stand-alone module but, in many cases, it is integrated into the PCM. PTO can operate the accessories on the vehicle which is driven by transmission. The PTO feature is available in various vehicles like wreckers and dump body trucks. Also, there are various applications that use PTO system, besides wreckers and dump tracks. Multiple controller self-tests are performed once you turn on the ignition. This can help the PCM to monitor the serial data which is taken over the controller area network to make sure all controllers are interfacing properly. The code P064B will be set if the module fails and PTO will be disabled.

What causes this problem with the PTO Control Module?

• Damaged PCM or PTO controller.
• Opening in the control module voltage supply circuit of PTO.
• Programming error in PCM.
• PTO control circuit is open or shorted.

1. PTO Control Module - Check for any openings or damages in the PTO control module voltage supply circuit. If you come across any, fix the issue or replace them with new ones.
2. PTO Control Circuit - See if there are any openings or shorted circuit in this component. Openings have to be fixed immediately to avoid this error.
3. Hydraulic Pump - Is your hydraulic pump damaged? Are you looking for the right replacement part for your vehicle? Then Parts Avatar is the right place, as it has the replacement part for every model and make.
4. Powertrain Control Module - A faulty or damaged Powertrain control module can give rise to this error code. Replace the damaged component instantly.

It is essential to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P064B here:

Common Symptoms

• PTO is not operative.
• Engine Start is slow.
• Engine stays idle during start.
• Issues with engine.
• Other faulty Codes

Here are some ways with the help of which you will be able to correct the OBD Code P064B

• Replacement of Control Module / Control Circuit
• Fixing damages in the Hydraulic Pump / Powertrain Control Module

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Here are some steps which you should follow in order to diagnose this fault code:

• To diagnose the code, you will need a diagnostic scanner, DVOM, and a source of reliable vehicle information. If you find any appropriate TSB it can actually help you in the process.
• Now connect the scanner to the diagnostic port and recover all stored data and freeze frame data.
• Write down this information as it can help you if there is inconsistent code. Clear the codes one you record all the relevant data and clear the codes and test drive your vehicle until the code is reset.
• It will be difficult to diagnose if the PCM enters readiness mode. You have to worsen this condition, before you actually start diagnosing your vehicle properly. Continue with diagnosis, if the code resets.
• Get details about connector face views, connector pinout charts, component locators, wiring diagrams, and diagnostic flow charts with the source of vehicle information.
• Use the appropriate wire diagrams and DVOM to see if there is battery voltage on the control circuit of PTO. Check for fuses, relays and change the damaged parts as needed. If every of these components function properly, then inspect the wires and joints. Also, check the chassis and ground junctions of engine.
• With the help of vehicle information, gather ground locations for related circuits. If you find the voltage in the PTO control circuit, check system controllers for any collision, water or heat damage.
• If there are any damages to the controller by water, it will be defective. You will also find a damaged controller or controller programming error if both the components are intact.

Common Mistakes When Diagnosing the P064B Code

• Faulty PCM.
• Faulty PTO control module.
• Damaged wires.