P255E — PTO Speed Selector Sensor/Switch 2 Circuit Intermittent/Erratic

OBD2 code P255E flags a problem with the sensor and actuator circuits (PTO speed selector sensor/switch 2 circuit intermittent/erratic). The car is usually drivable while you plan the repair. Common culprits: blown fuse feeding the circuit, open or shorted wiring in the circuit, poor ground connection.

powertrain (engine/transmission)

Is it safe to drive?

Short-term driving is OK In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

How to diagnose with an OBD scanner

Read the code and freeze frame Connect an OBD2 scanner, confirm P255E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the PTO speed selector sensor/switch 2 circuit intermittent/erratic for damage, corrosion, chafing or poor contact.
Subsystem check Measure reference voltage, ground and signal continuity at the component connector.
Subsystem check Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P255E does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for P255E (parts and labor, USD, independent shop rates): Repair wiring or connectors: $80–$250; Replace the faulty sensor or actuator: $150–$500; Control module repair: $300–$1,000. Overall, fixing P255E usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

What does OBD2 code P255E mean?

What are the symptoms of P255E?

Drivers most often notice: increased fuel consumption in some cases, possible limp mode depending on the affected component, the affected system operates intermittently or not at all, Check Engine Light on.

Is it safe to drive with P255E?

In most cases the car remains drivable, possibly with reduced performance or a disabled auxiliary system. If symptoms include stalling, no-start or brake/steering warnings, treat it as urgent.

What is the most common cause of P255E?

The most common causes are: blown fuse feeding the circuit, open or shorted wiring in the circuit, poor ground connection.

Will P255E clear itself?

Sometimes P255E clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What does P255E mean?

When P255E appears on a scan, it means the control module has flagged a problem in the sensor and actuator circuits: PTO speed selector sensor/switch 2 circuit intermittent/erratic. The fault sits in the powertrain (engine/transmission) group of the OBD2 standard.

To set P255E, the control module compares live readings of the sensor and actuator circuits against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

What causes P255E?

blown fuse feeding the circuit
corroded, loose or damaged connector
poor ground connection
faulty sensor or actuator of the affected circuit

Common symptoms of P255E

increased fuel consumption in some cases
possible limp mode depending on the affected component
the affected system operates intermittently or not at all
Check Engine Light on

How to diagnose P255E

Connect an OBD2 scanner, confirm P255E is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many P0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
Visually inspect the wiring harness and connectors related to the PTO speed selector sensor/switch 2 circuit intermittent/erratic for damage, corrosion, chafing or poor contact.
Measure reference voltage, ground and signal continuity at the component connector.
Wiggle-test the harness while watching the signal in live data — dropouts reveal broken wires.
Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm P255E does not return.

How to fix P255E

Start with the cheapest and most common causes before replacing expensive parts:

Repair wiring or connectors — $80–$250
Replace the faulty sensor or actuator — $150–$500
Control module repair — $300–$1,000

How much does it cost to fix P255E?

Repair cost depends on which component actually failed. Typical scenarios for P255E (parts and labor, USD, independent shop rates):

Repair wiring or connectors: $80–$250
Replace the faulty sensor or actuator: $150–$500
Control module repair: $300–$1,000

Overall, fixing P255E usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with P255E?