Steering Column Fiat Abarth Grande Punto

The steering column with OE code 51860331 è is an electric power steering (EPS) module – used on various Fiat models, including Grande Punto, Punto Evo, and their Abarth versions. This component integrates the steering column, the electric motor for’assistance, the reducer, the steering angle sensor, and the’control electronics, all in a single block. È designed to provide steering assistance modulated according to the speedà of the vehicle and driving conditions, with reduced energy consumption.

Technical characteristics

The OE column 51860331 has the following technical and construction specifications:

• Type: integrated electric steering column (EPS)
• Power supply voltage: 12 Volts
• Integrated steering angle sensor (Hall or resistive type)
• Low inertia brushless electric motor with epicyclic gearbox
• Electronic control module integrated into the structure
• Compatibilityà with stability control systemsà (ESP / VDC)
• Steering wheel adjustment: height and depthà (depending on the version)
• Weight: approximately 7–8 kg
• Connection to the lower column via a splined joint

DIPA canò intervene to review these spare parts thanks to its experience and expertise.

Functionalityà

The OE steering column 51860331 è responsible for transmitting the steering wheel movement to the steering box, while simultaneously providing modulated electric assistance. The EPS system operates based on the speedà of the vehicle, the torque exerted by the driver, and the dynamic conditions detected by the steering angle sensor. Its main functions include:

• Active steering assistance, reducing the effort on the steering wheel
• Support for stability systemsà (ESP/VDC) through angle and speed detectionà of the steering
• Intelligent torque management based on the gear engaged and vehicle load
• Automatic return-to-center function, without the use of a mechanical spring

The presence of the integrated steering angle sensor allows for the correct functioning of active safety systems and intelligent power steering.

Brand and model on which the part è mounted

Fiat

• Punto
• Punto Van
• Punto Evo
• Punto Evo Van
• Grande Punto

Abarth

• Punto
• Grande Punto

DIPA recommends to always check the compatibilityà of the spare part before the’purchase.

Defects and causes

The main defects found on the OE 51860331 steering column are:

• Failure of the EPS motor: the steering wheel becomes stiff and the’assistance does not activate
• Steering angle sensor anomaly: può causing the ESP warning light to illuminate or incorrect behavior of the control unit
• Error in the integrated EPS control unit: blockage of the’assistance, message “steering failure” on the dashboard
• Mechanical play: wear of internal couplings or the reducer
• Noiseà during steering: caused by internal bearings or lack of lubrication
• False electrical contact: oxidized connectors or damaged wires

Such defects can cause progressive or sudden malfunctions. Often the module enters aà protected mode and disables the’assistance.

After the replacement or revision of the steering column è , the learning procedure via diagnostics is necessary.

Final conclusions

The electric steering column OE 51860331 represents a fundamental component of the assisted steering system on Fiat Grande Punto and Punto Evo, including the Abarth versions.

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 offers refurbished components with performance equal to new, which allows for savings in replacement and contributes to the protection of the’environment thanks to the’circular economy. If the spare part you need is not è available, don't worry: DIPA canò refurbish “on demand” your part, restoring its full functionality.à and safety in a short time.