P255C Fault Code

PTO Speed Selector Sensor/Switch 2 Circuit Low

• What does that mean?
• Symptoms
• Causes
• Solutions

The P255C fault code indicates a problem with the PTO (Power Take-Off) Speed Selector Sensor or Switch 2 circuit, specifically signaling a low voltage condition. This can affect the proper operation of the PTO system, which is crucial for various vehicle functions, particularly in trucks and heavy machinery where auxiliary power is needed.

What are the symptoms of the P255C code?

Symptoms associated with the P255C fault code may include:

• Warning lights on the dashboard indicating PTO issues.
• Inability to engage the PTO function.
• Unusual noises from the PTO system when attempting to operate.
• Loss of power to auxiliary systems that rely on PTO engagement.

What causes the P255C code?

Common causes of the P255C code include:

• Faulty PTO speed selector sensor/switch.
• Damaged wiring or connectors within the circuit.
• Poor ground connections.
• Issues with the vehicle's power supply affecting sensor operation.

How to fix P255C?

To resolve the P255C error, the following steps should be taken:

• Inspect the PTO speed selector sensor/switch for proper operation and replace it if defective.
• Check the wiring and connectors for damage, corrosion, or poor connections, and repair them as necessary.
• Ensure there is a good ground connection.
• Clear the fault code from the vehicle's diagnostic system after repairs and test the PTO function to confirm the issue is resolved.