Is it safe to drive with this code?

Driving is typically possible but often inadvisable, as many vehicles enter a limp-home mode with severely reduced power and responsiveness; throttle behaviour may be unpredictable, which can affect safe vehicle control—see our disclaimer for guidance on when to seek immediate assistance.

P0225 may affect your MOT if the malfunction indicator lamp is illuminated at the time of the test, as an active engine warning light is an MOT failure point—refer to our disclaimer for full MOT and emissions guidance.

Roughly how much does it cost to fix?

Diagnosis typically takes around an hour and may cost in the low three-figure range; sensor replacement alone is often in the low to mid three-figure band, while more complex wiring repairs or throttle body replacement can reach the high three-figure or even four-figure range at main dealers, depending on the vehicle and labour rates.

Can this code appear intermittently?

Yes, intermittent faults are common with P0225, often caused by worn connectors, corroded terminals, or wiring that flexes during driving; the code may disappear temporarily but usually returns as the underlying issue worsens.

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← All fault codes | Electrical & Sensors

P0225

Powertrain

Throttle Position Sensor/Switch (TPS) C Circuit Malfunction

The engine control module has detected a signal from the throttle position sensor C circuit that falls outside the expected range, typically indicating a wiring issue or sensor circuit problem in drive-by-wire throttle systems.

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ⓘ Information only. This page provides general educational information about fault code P0225. We do not assess the urgency or safety implications of any specific fault. That requires in-person diagnosis by a qualified mechanic. Full terms.

Recommended next steps

Whether a fault is urgent, drivable, or routine depends entirely on the cause on a specific vehicle, and that can only be determined by a qualified mechanic with diagnostic equipment. If a warning light is illuminated, the most reliable next step is professional diagnosis.

What does P0225 mean?

P0225 is a Powertrain (engine, transmission, fuel system) fault code. It indicates: Throttle Position Sensor/Switch (TPS) C Circuit Malfunction.

This is a standardised OBD-II code. The technical definition is the same regardless of the make or model of vehicle, although specific causes and symptoms can vary between vehicles.

About Electrical & Sensors codes

Codes in the Electrical & Sensors category.

P0225 is one of 4,010 codes in this category. Browse all Electrical & Sensors codes →

What we know about P0225 specifically

We record the SAE J2012 standardised definition and the system this code belongs to, but we have not yet published detailed driver-reported symptoms, common causes, or step-by-step diagnostic guidance for P0225.

Rather than invent that information by generating generic content from a template, we leave it out. For specific guidance, the most reliable sources are:

•your vehicle's own service manual or manufacturer-specific technical bulletins
•a qualified mechanic with a manufacturer-level diagnostic tool
•a marque specialist familiar with your make and model

Codes nearby

Codes adjacent to P0225 in the P-code series. Many fault codes appear together with their neighbours because they relate to the same circuit or component.

P0222 Throttle Position Sensor/Switch B Circuit Low Input

P0223 Throttle Position Sensor/Switch B Circuit High Input

P0224 Throttle Position Sensor/Switch B Circuit Intermittent

P0226 Throttle Position Sensor/Switch C Circuit Range/Performance

P0227 Throttle Position Sensor/Switch C Circuit Low Input

P0228 Throttle Position Sensor/Switch C Circuit High Input

Other Electrical & Sensors codes

Other fault codes in the same system as P0225. The ones with detailed guides have plain-English explanations, symptoms, causes, and diagnostic steps.

B1257

Air Temperature External Sensor Circuit Short To Ground Detailed guide

B1363

DBPT Circuit Short To Ground Detailed guide

B2100

Ignition Run/Start Input Circuit Performance Detailed guide

C2000

Steering Angle Sensor Not Calibrated Detailed guide

P0030

HO2S Heater Control Circuit (Bank 1 Sensor 1) Detailed guide

P0031

Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) Detailed guide

Spotted an issue or have something to add? Mechanics, technicians, and drivers who have first-hand experience with P0225 can submit a correction or expansion. We review every submission before publishing, mechanic submissions are prioritised.

Information only, not professional advice

The information on this page is provided for general guidance and educational purposes only. It is not a substitute for diagnosis or repair advice from a qualified mechanic. Always verify any fault before paying for repairs. carfaultcodes.co.uk accepts no liability for decisions made based on this information. Full terms →

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