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P1502 2002 Ford F150 Code - Vehicle Speed Sensor Intermittent

Quick Answer

The P1502 diagnostic trouble code (DTC) for a 2002 Ford F150 indicates an intermittent issue with the vehicle speed sensor. Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, Corrosion in the sensor circuit. 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
P1502 2002 Ford F150 indicates Vehicle Speed Sensor Intermittent.
Common causes
Common causes include Faulty vehicle speed sensor, Damaged wiring or connectors, Corrosion in the sensor circuit.
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 Sep 17, 2024
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Code P1502 2002 Ford F150 Description

The P1502 diagnostic trouble code (DTC) for a 2002 Ford F150 indicates an intermittent issue with the vehicle speed sensor. The vehicle speed sensor (VSS) is a crucial component that monitors the speed of the vehicle and sends this information to the engine control module (ECM) to assist in various functions such as fuel injection, transmission shifting, and ABS operation. An intermittent problem with the VSS can lead to erratic speedometer readings, inaccurate shift points, and potentially unsafe driving conditions.

OBDII Code P1502 2002 Ford F150 - Vehicle Speed Sensor Intermittent
P1502 2002 Ford F150 Code - Vehicle Speed Sensor Intermittent

Common Causes of P1502 2002 Ford F150

  1. Faulty vehicle speed sensor
  2. Damaged wiring or connectors
  3. Corrosion in the sensor circuit
  4. ECM software issues
  5. Mechanical damage to the sensor

Symptoms of P1502 2002 Ford F150

  1. Erratic speedometer readings
  2. Harsh or delayed shifting
  3. Hesitation during acceleration
  4. Stalling at low speeds
  5. ABS warning light illuminated

How to Fix P1502 2002 Ford F150

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and monitor VSS data.
  2. Inspect the VSS wiring and connectors for any signs of damage or corrosion. Repair or replace as needed.
  3. Test the vehicle speed sensor using a multimeter to check for proper resistance and signal output.
  4. If the VSS is found to be faulty, replace it with a new sensor following manufacturer guidelines.
  5. Clear the trouble code from the ECM memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1502 2002 Ford F150

The typical repair costs for addressing a P1502 code on a 2002 Ford F150 can range from $150 to $300, including parts and labor. Keep in mind that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate.

What does this mean?

Tech Notes for P1502 2002 Ford F150

There is a Factory Service Bulletin for the 2002 Ford F-150:

2002 Ford F-150 Factory Service Bulletin OBDII Code P1502

When is the Code Detected?

The Powertrain Control Module (PCM) detected an intermittent condition on the vehicle speed sensor circuit

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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 P1502 2002 Ford F150 Code

1. What are the common symptoms of OBDII code P1502 on a 2002 Ford F150 related to the Vehicle Speed Sensor Intermittent issue?

- Common symptoms include erratic speedometer readings, inaccurate odometer readings, and issues with cruise control functionality.

2. What are the possible causes of the Vehicle Speed Sensor Intermittent problem triggering OBDII code P1502 on a 2002 Ford F150?

- Potential causes may include a faulty vehicle speed sensor, damaged wiring or connectors related to the sensor, or a problem with the vehicle's instrument cluster.

3. How can I diagnose the Vehicle Speed Sensor Intermittent issue causing OBDII code P1502 on my 2002 Ford F150?

- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the vehicle speed sensor and its connections, and testing the sensor's functionality using a multimeter.

4. Is it safe to continue driving my 2002 Ford F150 with OBDII code P1502 related to the Vehicle Speed Sensor Intermittent problem?

- While the vehicle may still be operable, it is recommended to address the issue promptly to avoid potential safety hazards and further damage to the vehicle's systems.

5. Can I repair the Vehicle Speed Sensor Intermittent issue triggering OBDII code P1502 on my 2002 Ford F150 myself?

- Depending on your experience and access to tools, you may be able to replace the vehicle speed sensor or repair related wiring yourself. However, professional assistance is recommended for accurate diagnosis and proper repair.

6. Are there any temporary fixes or reset procedures for OBDII code P1502 related to the Vehicle Speed Sensor Intermittent issue on a 2002 Ford F150?

- Resetting the trouble code using an OBDII scanner may temporarily clear the code, but it will likely reappear if the underlying issue is not addressed.

7. How much does it typically cost to repair the Vehicle Speed Sensor Intermittent problem triggering OBDII code P1502 on a 2002 Ford F150?

- The cost of repair can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Will fixing the Vehicle Speed Sensor Intermittent issue causing OBDII code P1502 improve the vehicle's overall performance?

- Resolving the speed sensor issue can help restore accurate speed readings, odometer functionality, and cruise control operation, improving the overall performance and drivability of the vehicle.

9. Can extreme weather conditions affect the Vehicle Speed Sensor Intermittent problem triggering OBDII code P1502 on a 2002 Ford F150?

- Yes, extreme temperatures or moisture can potentially impact the performance of the vehicle speed sensor and contribute to intermittent issues triggering the OBDII code.

10. How often should I have the Vehicle Speed Sensor Intermittent system inspected on my 2002 Ford F150 to prevent OBDII code P1502 from recurring?

- Regular vehicle maintenance checks, such as during routine service intervals or when experiencing symptoms, can help catch any potential issues with the speed sensor early and prevent the code from reoccurring.

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