Technical Description of OBD-II Trouble Code
The PTO Control Circuit is registering a high voltage.
What does that mean?
This is a generic diagnostic trouble code (DTC) that applies to many OBD-II vehicles (1996-newer), including Ford, GMC, Chevy, Dodge, Ram, and others. The specific repair steps may vary depending on the year, make, model, and powertrain configuration.
OBD-II trouble code P260C, along with related codes P260A, P260B, and P260D, are associated with the PTO or power take off control circuit.
The PTO or power take-off is a system connected to the vehicle’s transmission and is used to operate auxiliary equipment such as a winch, snow plow, or dump bed.
When the PCM detects an abnormally high voltage or resistance in the PTO control circuit, code P260C is set and the check engine light or service engine soon light, or both, may illuminate.
What is the severity of this DTC?
This code is generally not severe as it primarily affects PTO functions and not regular vehicle functions.
What are some of the symptoms of the code?
Symptoms of a P260C trouble code may include:
What are some of the common causes of the code?
Possible causes for this P260C code may include:
What are some P260C troubleshooting steps?
The first step in troubleshooting any malfunction is to research the Technical Service Bulletins (TSB’s) specific to the vehicle’s year, model, and engine/transmission configuration. This can save time by providing guidance.
The second step is to inspect all components associated with the PTO power take-off circuit for physical damage. Perform a thorough visual inspection of the wiring for defects such as scraping, rubbing, bare wires, or burn spots. Check connectors and connections for security, corrosion, and damaged pins. This includes all wiring connectors and connections to the PCM. Consult the vehicle’s technical data to verify the configuration of the oil level safety circuit and check for a fuse or fuse-able link in the circuit.
Advanced Steps
The advanced steps are vehicle-specific and require advanced equipment, such as a digital multimeter, and specific technical references for the vehicle. An oil pressure gauge may be helpful in this situation.
This article is for informational purposes only, and the specific technical data and service bulletins for your vehicle should always take priority.
