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Engine-Codes – Lincoln – C1955 Lincoln

C1955 Lincoln Code - Steering Angle Sensor Circuit Open

Quick Answer

The C1955 diagnostic trouble code (DTC) indicates an issue with the steering angle sensor circuit in Lincoln vehicles. Common causes include Faulty Steering Angle Sensor: The sensor itself may be defective or have internal failures, Wiring Issues: Damaged or frayed wiring in the steering angle sensor circuit can lead to an open circuit, Corroded Connectors: Corrosion at the connectors can disrupt the electrical flow, causing the circuit to open. 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
C1955 Lincoln indicates Steering Angle Sensor Circuit Open.
Common causes
Common causes include Faulty Steering Angle Sensor: The sensor itself may be defective or have internal failures, Wiring Issues: Damaged or frayed wiring in the steering angle sensor circuit can lead to an open circuit, Corroded Connectors: Corrosion at the connectors can disrupt the electrical flow, causing the circuit to open.
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 Oct 02, 2024
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Code C1955 Lincoln Description

The C1955 diagnostic trouble code (DTC) indicates an issue with the steering angle sensor circuit in Lincoln vehicles. The steering angle sensor is a critical component that measures the angle of the steering wheel and sends this information to the vehicle's electronic control unit (ECU). This data is essential for various systems, including stability control, traction control, and advanced driver-assistance systems (ADAS). When the code C1955 is triggered, it signifies that the circuit associated with the steering angle sensor is open, meaning there is a break or fault in the electrical connection.

OBDII Code C1955 Lincoln - Steering Angle Sensor Circuit Open
C1955 Lincoln Code - Steering Angle Sensor Circuit Open

Common Causes of C1955 Lincoln

  1. Faulty Steering Angle Sensor: The sensor itself may be defective or have internal failures.
  2. Wiring Issues: Damaged or frayed wiring in the steering angle sensor circuit can lead to an open circuit.
  3. Corroded Connectors: Corrosion at the connectors can disrupt the electrical flow, causing the circuit to open.
  4. Improper Calibration: If the steering angle sensor has not been calibrated correctly after a repair or replacement, it may trigger this code.
  5. Mechanical Damage: Physical damage to the steering column or related components can affect the sensor's operation.

Symptoms of C1955 Lincoln

  1. Warning Lights: The illumination of the traction control or stability control warning lights on the dashboard.
  2. Unresponsive Steering Systems: Difficulty in steering or a feeling of looseness in the steering wheel.
  3. Erratic Behavior of Stability Control: The vehicle's stability control system may engage unexpectedly or fail to activate when needed.
  4. Increased Tire Wear: Uneven tire wear patterns due to improper alignment caused by incorrect steering angle readings.
  5. Faulty ADAS Features: Malfunctioning of advanced driver-assistance systems that rely on accurate steering data, such as lane departure warning or adaptive cruise control.

How to Fix C1955 Lincoln

  1. Visual Inspection: Begin with a thorough visual inspection of the wiring harness and connectors associated with the steering angle sensor for signs of damage or corrosion.
  2. Test the Sensor: Use a multimeter to check the resistance and voltage output of the steering angle sensor to determine if it is functioning correctly.
  3. Repair or Replace Wiring: If any damaged wiring or corroded connectors are found, repair or replace them as necessary to restore proper electrical connectivity.
  4. Replace the Steering Angle Sensor: If the sensor is confirmed to be faulty, replace it with a new unit and ensure it is properly calibrated.
  5. Clear Codes and Test Drive: After repairs, clear the DTCs using a scan tool and perform a test drive to ensure that the issue is resolved and that no new codes appear.

Cost to Fix C1955 Lincoln

** The typical repair costs for addressing a C1955 code can range from $150 to $600, depending on the specific repairs needed. This estimate includes parts such as a new steering angle sensor (which can cost between $100 and $300) and labor costs, which can vary significantly. Labor rates typically range from $80 to $150 per hour, depending on the location, vehicle make and model, and engine type. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer lower rates. It is advisable to check local rates for a more precise estimate and to get a detailed quote from a trusted repair shop.

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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.

Frequently Asked Questions about C1955 Lincoln Code

What does the OBDII code C1955 signify in a Lincoln vehicle?

C1955 indicates a problem with the steering angle sensor circuit, specifically that the circuit is open and not functioning correctly.

What are common symptoms of the C1955 code?

Common symptoms include the illumination of the warning lights on the dashboard, such as the ABS or traction control light, and potential issues with steering responsiveness.

What can cause the C1955 code to trigger?

Causes may include a faulty steering angle sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's electronic control module (ECM).

How can I diagnose the C1955 code?

To diagnose C1955, use an OBDII scanner to check for related codes, inspect the steering angle sensor and its wiring for damage, and test the sensor's functionality.

Can I drive my Lincoln with the C1955 code active?

While you may be able to drive the vehicle, it is not recommended as it can affect steering responsiveness and stability control, leading to unsafe driving conditions.

What repair steps are typically taken to resolve the C1955 code?

Repair steps usually include checking and repairing any damaged wiring or connectors, replacing the steering angle sensor if faulty, and recalibrating the sensor if necessary.

Is it necessary to reset the OBDII system after fixing the C1955 code?

Yes, after repairs are made, it is important to clear the code using an OBDII scanner and ensure that the issue does not reoccur by performing a test drive.

How much does it typically cost to repair the issue associated with the C1955 code?

Repair costs can vary widely based on the specific issue but can range from $100 to $500 or more, depending on whether a simple wiring fix or a sensor replacement is needed.

Can I fix the C1955 code issue myself, or should I seek professional help?

If you have automotive repair experience and access to the necessary tools, you may be able to diagnose and repair the issue yourself. However, if you're unsure, it's best to consult a professional mechanic.

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