P260B: PTO Control Circuit Low

Is your scanner showing P260B?
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P260B: PTO Control Circuit Low

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What Does The P260B Code Mean?

OBD-II trouble code P260B and related codes P260A, P260C and P260D are associated with the PTO or power take off control circuit.

The PTO or power take-off is a system that is linked to the transmission of the vehicle and is used to drive auxiliary equipment. That auxiliary equipment might include things such as a winch, snow plow, dump bed, etc.

When the PCM detects improper voltage or resistance within the PTO control circuit that is so low it’s outside the expected range, code P260B will be set and the check engine light, service engine soon light or both may be illuminated.

What Are The Symptoms Of The P260B Code?

Symptoms of a P260B trouble code may include:

  • Auxiliary PTO equipment will not function
  • Check engine light illuminated

What Are The Potential Causes Of The P260B Code?

Causes for this P260B code may include:

  • Defective PTO relay coil control
  • Open or short in PTO control circuit
  • Faulty or damaged wiring
  • Corroded, damaged or loose connector
  • Defective fuse or fuse-able link (if applicable)
  • Defective PCM

How Serious Is This P260B Code?

The severity of this code is generally not severe because it will likely only affect PTO functions but not regular vehicle functions.

How Can You Fix The P260B Code?

The first step in the troubleshooting process for any malfunction is to research the Technical Service Bulletins (TSB’s) for the specific vehicle by year, model and engine/transmission configuration. In some circumstances, this can save a lot of time in the long run by pointing you in the right direction.

The second step is to locate all components associated with the PTO power take-off circuit and look for obvious physical damage. Perform a thorough visual inspection to check the associated wiring for obvious defects such as scraping, rubbing, bare wires, or burn spots.

Next is to check the connectors and connections for security, corrosion and damaged pins. This process must include all wiring connectors and connections to all components including the PCM. Consult the specific tech data for the vehicle to verify the configuration of the oil level safety circuit and see if a fuse or fuse-able link is incorporated into the circuit.

Advanced Steps

The advanced steps become very vehicle specific and require the appropriate advanced equipment to perform accurately. These procedures require a digital multimeter and the specific technical references for the vehicle. In this situation, an oil pressure gauge may facilitate the troubleshooting process.

This article is strictly informational and the specific technical data and service bulletins for your vehicle should always take priority.

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> ECU

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

P260B PTO Control Circuit Low, OBD-Codes.

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