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U1712 Fiat Code - Steering Angle Sensor Communication Failure

Quick Answer

The diagnostic code U1712 indicates a communication failure between the control module and the Steering Angle Sensor (SAS). Common causes include Faulty steering angle sensor, Steering angle sensor not calibrated correctly, Open or shorted wiring harness affecting sensor communication. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U1712 Fiat indicates Steering Angle Sensor Communication Failure.
Common causes
Common causes include Faulty steering angle sensor, Steering angle sensor not calibrated correctly, Open or shorted wiring harness affecting sensor communication.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Jun 03, 2026
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Code U1712 Fiat Description

The diagnostic code U1712 indicates a communication failure between the control module and the Steering Angle Sensor (SAS). This sensor plays a crucial role in providing real-time data regarding the position of the steering wheel to various vehicle systems, including the Anti-lock Braking System (ABS) and the Electronic Stability Program (ESP). When the SAS fails to communicate effectively, it can lead to a range of performance issues, particularly affecting the vehicle's handling characteristics and stability. The SAS is integral to systems that rely on accurate steering input to function correctly, and any disruption in its data flow can compromise the vehicle's safety features.

OBDII Code U1712 Fiat - Steering Angle Sensor Communication Failure
U1712 Fiat Code - Steering Angle Sensor Communication Failure

Common Causes of U1712 Fiat

  1. Faulty steering angle sensor
  2. Steering angle sensor not calibrated correctly
  3. Open or shorted wiring harness affecting sensor communication
  4. Poor electrical connection at the sensor or control module
  5. Faulty clock spring affecting steering wheel electronics
  6. CAN bus communication fault due to damaged wiring or connectors
  7. Low battery voltage impacting sensor operation
  8. Faulty ABS/ESP control module
  9. Loose or corroded ground connection affecting electrical flow
  10. Steering column wiring damage due to wear or impact

Symptoms of U1712 Fiat

  1. Engine Light ON (or Service Engine Soon Warning Light)
  2. Unresponsive or erratic steering behavior
  3. Inconsistent ABS or traction control activation
  4. Difficulty in calibrating the steering angle sensor
  5. Warning messages related to stability control systems on the dashboard

How to Fix U1712 Fiat

  1. Perform a thorough diagnostic scan to confirm the U1712 code and check for any additional trouble codes.
  2. Inspect the wiring harness and connectors associated with the steering angle sensor for damage, corrosion, or loose connections.
  3. Test the steering angle sensor for proper operation and replace it if it is found to be faulty.
  4. Calibrate the new or existing steering angle sensor using a specialized diagnostic tool to ensure accurate data transmission.
  5. Check the ABS/ESP control module for faults and update or replace it if necessary to restore proper communication.

Cost to Fix U1712 Fiat

The cost to diagnose and repair the U1712 code can vary significantly based on the specific cause of the issue. Typically, parts such as a new steering angle sensor may range from $100 to $300, while labor costs can vary between $80 to $150 per hour depending on the shop's location and reputation. Overall, you might expect to pay between $200 and $600 for a complete diagnosis and repair, with dealership rates often being higher than independent shops.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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