Renault Capture Clio Transmission Control Unit

Typical Defects:
No communication with diagnostic system

The TCU (Transmission Control Unit) with code OE 310320756R is the electronic module responsible for managing the dual-clutch automatic transmission DCT250 (also known as DC4). This component is installed on Renault vehicles equipped with a diesel engine 1.5 dCi and is responsible for controlling shifting operations, managing the clutches, and interfacing with the onboard electronics.

Technical Features

The TCU module 310320756R is a microprocessor control unit with integrated management of actuator signals, sensors, and CAN network communication. The main technical features include:

• Original Renault code: 310320756R
• Type: electronic transmission control unit (TCU)
• Application: dual-clutch automatic transmission DCT250
• Power supply: 12 V
• Communication: CAN-BUS
• Mounting: directly fixed to the transmission housing, in a high IP protection environment

DIPA can intervene to revise these modules thanks to its experience and expertise.

Functionality

The control unit 310320756R monitors in real-time all functions related to the operation of the automatic transmission DCT250. Its main operational functions include:

• Control of the two independent clutches via electro-actuators
• Management of gear shifting based on load, engine speed, and driving mode
• Coordination between engine ECU and transmission system to avoid jerks or delays
• Continuous monitoring of oil temperature, input and output transmission speed
• Storage of fault codes and activation of recovery mode in case of error
• Supervision of the adaptive strategy based on the driver's driving style

The operational precision of the TCU is essential to ensure smooth shifting, gear protection, and quick response to commands.

Brand and model on which the part is installed

Renault

• Captur
• Clio

DIPA recommends always checking the compatibility of the spare part before purchase.

Defects

• Communication interruption with the CAN network
• No communication with diagnostics

Final Conclusions

The TCU with code 310320756R is a strategic component for managing the dual-clutch automatic transmission DCT250 on Renault Clio and Captur models with 1.5 dCi engine. In case of failure, it is essential to perform an accurate diagnosis to distinguish any software issues from mechanical or electrical defects.

DIPA has a wide range of spare parts: from original ones to aftermarket parts selected from the best manufacturers on the market. Not only that: it has refurbished components with performance equal to new, which allows for savings in replacement and contributes to environmental protection through the circular economy. If the spare part you need is not available, don't worry: DIPA can refurbish your part "on demand" restoring its full functionality and safety in a short time.