Engine-CodesFord – C1305 Ford

C1305 Ford Code - Longitudinal Accelerometer Signal Fault

Quick Answer

The C1305 Ford code indicates a Longitudinal Accelerometer Signal Fault, which means that there is an issue with the longitudinal accelerometer sensor in the vehicle. Common causes include Damaged wiring or connectors leading to the longitudinal accelerometer sensor, Sensor malfunction or failure due to wear and tear, Calibration errors in the sensor's readings. 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
C1305 Ford indicates Longitudinal Accelerometer Signal Fault .
Common causes
Common causes include Damaged wiring or connectors leading to the longitudinal accelerometer sensor, Sensor malfunction or failure due to wear and tear, Calibration errors in the sensor's readings.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code C1305 Ford Description

The C1305 Ford code indicates a Longitudinal Accelerometer Signal Fault, which means that there is an issue with the longitudinal accelerometer sensor in the vehicle. The longitudinal accelerometer is responsible for measuring the vehicle's acceleration in the direction of travel. This sensor plays a crucial role in various safety systems, such as traction control, stability control, and anti-lock brakes. When this sensor malfunctions, it can lead to inaccurate readings and potentially compromise the performance and safety of the vehicle.

OBDII Code C1305 Ford - Longitudinal Accelerometer Signal Fault
C1305 Ford Code - Longitudinal Accelerometer Signal Fault

Common Causes of C1305 Ford

  1. Damaged wiring or connectors leading to the longitudinal accelerometer sensor.
  2. Sensor malfunction or failure due to wear and tear.
  3. Calibration errors in the sensor's readings.
  4. Impact or physical damage to the sensor from road debris or accidents.
  5. Corrosion or contamination affecting the sensor's performance.

Symptoms of C1305 Ford

  1. Illumination of the traction control or stability control warning light on the dashboard.
  2. Loss of traction control or stability control during driving.
  3. Inconsistent or erratic braking behavior, especially during sudden stops.
  4. Poor acceleration response or hesitation when accelerating.
  5. Unusual noises or vibrations coming from the vehicle.

How to Fix C1305 Ford

  1. Begin by conducting a thorough diagnostic scan to confirm the C1305 Ford code and pinpoint the exact cause of the longitudinal accelerometer signal fault.
  2. Inspect the wiring and connectors associated with the sensor for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the longitudinal accelerometer sensor for proper functionality and calibration. Replace the sensor if it is faulty.
  4. Clear the diagnostic trouble codes from the vehicle's system and perform a road test to ensure that the issue has been resolved.
  5. If the problem persists, consult a professional technician or dealership for further diagnosis and repair.

Cost to Fix C1305 Ford

The typical repair costs for addressing a Longitudinal Accelerometer Signal Fault (C1305 Ford) can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It is advisable to obtain local quotes for a more accurate estimate of the repair costs.

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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 C1305 Ford Code

1. What does the OBDII code C1305 mean for a Ford vehicle?

C1305 indicates a "Longitudinal Accelerometer Signal Fault," meaning the vehicle's ABS or stability control system has detected an issue with the longitudinal accelerometer signal.

2. What are the symptoms of code C1305 in a Ford?

Common symptoms include the ABS or traction control warning light turning on, reduced stability control functionality, and, in some cases, decreased braking performance.

3. What causes the C1305 code to appear?

The code can be triggered by a faulty longitudinal accelerometer, damaged wiring or connectors, a malfunctioning ABS control module, or a calibration issue with the accelerometer.

4. How does a longitudinal accelerometer work in a Ford vehicle?

The longitudinal accelerometer measures forward and backward movement to help systems like ABS and traction control maintain stability during acceleration and braking.

5. Can I drive my Ford with the C1305 code active?

While the vehicle may still be drivable, safety systems like ABS and traction control might not function properly, increasing the risk of losing control in certain conditions.

6. How do I diagnose the C1305 code on my Ford?

Start by scanning for additional trouble codes, inspecting the longitudinal accelerometer and its wiring for damage, and checking for proper connections or loose pins.

7. How is the C1305 code typically repaired?

Repairs may include replacing the faulty longitudinal accelerometer, repairing damaged wiring, cleaning or reconnecting connectors, or reprogramming the ABS module.

8. How much does it cost to fix code C1305 on a Ford?

The repair cost can range from $100 to $500, depending on whether the issue is a simple wiring fix or if the longitudinal accelerometer or ABS module requires replacement.

9. Can a software update fix the C1305 code?

In some cases, a software update or recalibration of the ABS module may resolve the issue if the problem is related to a programming fault.

10. How can I prevent the C1305 code from recurring?

Regular maintenance, including inspecting ABS-related wiring and connectors for wear, and addressing warning lights promptly, can help prevent this code from reappearing.

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