Steering Column Refurbished Fiat 1.2

The steering column with OE code 55703372 è a component of the electric steering system mounted on various Fiat models, particularly the Fiat Grande Punto (series 199). It is an integrated module that includes the steering column, the electric motor for’assistance, the torque and steering angle sensor, and the mechanical connection part between the steering wheel and the steering box. This column è is part of the EPS (Electric Power Steering) system, which replaces hydraulic power assistance with a’fully electric actuation.

Technical specifications

The OE steering column 55703372 è produced by suppliers such as Delphi and è designed to provide variable steering assistance based on the speedà of the vehicle. It integrates a brushless electric motor, a torque sensor, and a steering angle encoder. The module è powered at 12 V and communicates with the onboard control units via the CAN network.

• Type: steering column with integrated electric power assistance (EPS)
• Sensors: integrated steering torque and steering angle sensors
• Power supply: 12 V
• Connectors: multiple (depending on the version)
• Approximate weight: about 4 kg
• OEM supplier: Delphi
• Configuration: prepared for vehicles with and without ESP/ASR
• Installation: cabin, between the steering wheel and the steering box

DIPA può intervene to revise this component as wellì important for driving safety.

Functionalityà

The steering column 55703372 serves the dual function of transmitting the mechanical movement of the steering wheel to the rack and providing assistance via the EPS electric motor. Based on signals from the sensors, the system adjusts the necessary assistance force according to the speedà and the effort applied to the steering wheel. The torque sensor detects the twist applied by the driver, while the angular sensor monitors the position of the steering wheel. This data is processed by the EPS control unit to optimize comfort and maneuverabilityà of the vehicle.

Brand and model on which the part è is mounted

Fiat

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

Abarth

• Abarth Grande Punto

DIPA recommends to always check compatibilityà based on the specific engine code and chassis number.

Typical defects

• Loss of steering assistance: steering becomes heavy, typical failure of the torque sensor or the integrated EPS control unit.
• Steering assistance warning light on the instrument panel: associated with communication errors or incorrect readings from the sensors.
• Vibration or jerking of the steering wheel during turning: canò indicate problems in the calibration of the steering angle sensor or in the module software.
• Internal noises in the steering column: caused by mechanical play or wear of the internal supports.
• Communication errors with the CAN network: due to oxidized connectors or damaged wiring.

Final conclusions

The Fiat OE steering column 55703372 è an essential component for the proper functioning of the electric power steering in Grande Punto models. The’integration of electronics and actuator requires attention during replacement.

DIPA offers a wide range of spare parts: from original ones to aftermarket parts selected from the best manufacturers on the market. Not only that: it also 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. Also ask about the availabilityà of refurbished parts ready in stock for quick interventions and no waiting times.