Is it safe to drive with this code?

Driving may be possible in the short term, but the transmission could enter limp mode or experience rough shifting, which may worsen over time. Extended driving is not advisable as inadequate fluid circulation can lead to internal transmission damage. See our disclaimer and seek professional advice promptly.

The code itself is not an automatic MOT failure, but if the malfunction indicator lamp (check engine light) is illuminated at the time of the test, it may result in a fail under emissions or safety monitoring system checks. Refer to our MOT disclaimer for full details.

Roughly how much does it cost to fix?

Costs vary widely depending on the root cause. A blown fuse or wiring repair may fall into the low two-figure range, while replacing the auxiliary transmission pump control module typically ranges from low to mid three-figure at an independent garage and may reach high three-figure or even four-figure at a main dealer if additional transmission work is required. Labour costs and the need for diagnostic time also influence the final bill.

Can low transmission fluid cause this code?

Yes, low or degraded transmission fluid can place extra strain on the auxiliary pump and affect its performance, potentially triggering feedback signal faults. Checking and topping up fluid is often a sensible first step before investigating electrical or mechanical pump issues.

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← All fault codes | ECU

P0C2C

Powertrain

Auxiliary Transmission Fluid Pump Control Module Feedback

The engine control system has detected that the auxiliary transmission fluid pump control module is providing feedback signals outside the expected range, which may indicate a communication or performance issue with the electric pump that maintains transmission pressure.

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ⓘ Information only. This page provides general educational information about fault code P0C2C. 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 P0C2C mean?

P0C2C is a Powertrain (engine, transmission, fuel system) fault code. It indicates: Auxiliary Transmission Fluid Pump Control Module Feedback.

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 ECU codes

Engine control unit (ECU) codes relate to the main engine computer itself, its memory, internal processors, supply voltage, or its ability to communicate with sensors and actuators. These are often electrical or wiring-related rather than mechanical faults.

P0C2C is one of 1,108 codes in this category. Browse all ECU codes →

What we know about P0C2C 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 P0C2C.

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 P0C2C in the P-code series. Many fault codes appear together with their neighbours because they relate to the same circuit or component.

P0C28 Auxiliary Transmission Fluid Pump Motor Current High

P0C29 Auxiliary Transmission Fluid Pump Driver Circuit Performance

P0C2B Auxiliary Transmission Fluid Pump Control Module Feedback Signal

P0C2D Electric Transmission Fluid Pump Control Module Feedback Signal Low

P0C2E Electric Transmission Fluid Pump Control Module Feedback Signal High

P0C2F Internal Control Module Drive Motor/Generator - Engine Speed Sensor Performance

Other ECU codes

Other fault codes in the same system as P0C2C. The ones with detailed guides have plain-English explanations, symptoms, causes, and diagnostic steps.

B1049

Passenger-Side Pre-Tensioner Seat Belt And Other Air Bag Module Circuits Short Detailed guide

P0606

ECM/PCM Processor Fault Detailed guide

U0001

High Speed CAN Communication Bus Detailed guide

U0100

Lost Communication With ECM/PCM Detailed guide

B1000

A/C Switch Request Input Circuit/Performance

B1001

Multiplex Integrated Control Unit (MICU) Internal Error

Spotted an issue or have something to add? Mechanics, technicians, and drivers who have first-hand experience with P0C2C 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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