AutoCodes – Infiniti – P1807 Infiniti

P1807 Infiniti Code - Vehicle Speed Sensor A/T

Quick Answer

The Transmission Control Module (TCM) transmits the output shaft revolution signal via CAN communication to Transfer control unit. Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor circuit poor electrical connection. 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: P1807 Infiniti indicates Vehicle Speed Sensor A/T.
Common causes: Common causes include Faulty Vehicle Speed Sensor, Vehicle Speed Sensor harness is open or shorted, Vehicle Speed Sensor circuit poor electrical connection.
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.

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Code Popularity 3,605

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1807 Infiniti Description

The Transmission Control Module (TCM) transmits the output shaft revolution signal via CAN communication to Transfer control unit. DTC P1807 will set when a malfunction is detected in the output shaft revolution signal or an improper signal is input while driving.

OBDII Code P1807 Infiniti - Vehicle Speed Sensor A/T - AutoCodes.com — P1807 Infiniti Code - Vehicle Speed Sensor A/T

What does this mean?

What are the Possible Causes of the DTC P1807 Infiniti?

Faulty Vehicle Speed Sensor
Vehicle Speed Sensor harness is open or shorted
Vehicle Speed Sensor circuit poor electrical connection

How to Fix the DTC P1807 Infiniti?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1807 Infiniti code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1807 Infiniti code?

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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 P1807 Infiniti Code

1. What are the common symptoms of OBDII code P1807 (Infiniti) related to the Vehicle Speed Sensor A/T?

- Common symptoms include erratic speedometer readings, incorrect shifting patterns in automatic transmissions, and illumination of the Check Engine light.

2. What are the typical causes of OBDII code P1807 (Infiniti) indicating an issue with the Vehicle Speed Sensor A/T?

- Possible causes include a faulty vehicle speed sensor, damaged wiring or connectors in the speed sensor circuit, or issues with the transmission control module.

3. How can I diagnose OBDII code P1807 (Infiniti) associated with the Vehicle Speed Sensor A/T?

- Diagnosis involves using an OBDII scanner to retrieve the code, inspecting the vehicle speed sensor and its wiring for damage, and testing the sensor's functionality using a multimeter.

4. Can I continue driving my vehicle with OBDII code P1807 (Infiniti) until it's repaired?

- It is not recommended to continue driving with this code active, as it can lead to further transmission issues and potential safety hazards due to inaccurate speed readings.

5. What are the repair options for resolving OBDII code P1807 (Infiniti) related to the Vehicle Speed Sensor A/T?

- Repair options include replacing the faulty vehicle speed sensor, repairing any damaged wiring or connectors, or reprogramming the transmission control module if necessary.

6. How much does it typically cost to repair OBDII code P1807 (Infiniti) involving the Vehicle Speed Sensor A/T?

- The cost of repair can vary depending on the extent of the issue, but it may range from around $150 to $400, including parts and labor.

7. Can a DIY enthusiast fix OBDII code P1807 (Infiniti) on their own?

- While some experienced DIY enthusiasts may be able to replace the vehicle speed sensor or repair wiring themselves, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

8. Are there any preventive measures to avoid OBDII code P1807 (Infiniti) related to the Vehicle Speed Sensor A/T in the future?

- Regular maintenance checks, prompt addressing of any transmission-related issues, and ensuring proper wiring connections can help prevent this code from reoccurring.

9. Is OBDII code P1807 (Infiniti) specific to certain Infiniti models?

- This code is specific to Infiniti vehicles and is related to the Vehicle Speed Sensor A/T system, commonly found in models like the Infiniti G35, FX35, and QX56.

10. How urgent is it to address OBDII code P1807 (Infiniti) linked to the Vehicle Speed Sensor A/T?

- It is important to address this code promptly to prevent further damage to the transmission system and ensure the vehicle operates safely and efficiently.