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P1704 Mazda Code - Transmission Range Sensor Malfunction

Quick Answer

The P1704 code for Mazda vehicles indicates a transmission range sensor malfunction. Common causes include Faulty transmission range sensor, Misaligned or improperly installed sensor, Wiring or electrical issues. 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
P1704 Mazda indicates Transmission Range Sensor Malfunction.
Common causes
Common causes include Faulty transmission range sensor, Misaligned or improperly installed sensor, Wiring or electrical issues.
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 09, 2024
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Code P1704 Mazda Description

The P1704 code for Mazda vehicles indicates a transmission range sensor malfunction. The transmission range sensor, also known as the neutral safety switch, is a crucial component of the vehicle's transmission system. It is responsible for detecting the position of the gear shift lever and ensuring that the correct gear is engaged. When this sensor malfunctions, it can lead to a variety of issues that affect the vehicle's performance and drivability.

OBDII Code P1704 Mazda - Transmission Range Sensor Malfunction
P1704 Mazda Code - Transmission Range Sensor Malfunction

Common Causes of P1704 Mazda

  1. Faulty transmission range sensor
  2. Misaligned or improperly installed sensor
  3. Wiring or electrical issues
  4. Corrosion or damage to sensor connections
  5. Software or calibration issues

Symptoms of P1704 Mazda

  1. Harsh shifting
  2. Slipping gears
  3. Inability to shift into certain gears
  4. Stalling when shifting gears
  5. Check engine light illuminated

How to Fix P1704 Mazda

  1. Diagnose the issue by using a scan tool to read the trouble code and determine the specific problem with the transmission range sensor.
  2. Inspect the sensor for any physical damage, misalignment, or corrosion. Replace the sensor if necessary.
  3. Check the wiring and connections associated with the sensor for any issues. Repair or replace any damaged wiring.
  4. Clear the trouble code from the vehicle's computer and reset the system to see if the issue is resolved.
  5. Test drive the vehicle to ensure that the transmission is shifting properly and that the issue has been resolved.

Cost to Fix P1704 Mazda

The typical repair costs for a transmission range sensor malfunction can range from $150 to $400, including parts and labor. However, the 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 is advisable to check local rates for a more accurate estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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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 P1704 Mazda Code

1. What does the OBDII code P1704 mean on a Mazda?

P1704 indicates a Transmission Range Sensor Malfunction, which means the sensor is not correctly detecting the gear position.

2. What are the symptoms of a P1704 code in a Mazda?

Symptoms include difficulty shifting gears, incorrect gear indicator display, the transmission staying in limp mode, or the Check Engine Light illuminating.

3. What causes the P1704 code to appear in a Mazda?

Common causes include a faulty transmission range sensor, damaged wiring or connectors, or issues with the transmission control module (TCM).

4. Can I drive my Mazda with a P1704 code?

It’s possible to drive, but it’s not recommended as the vehicle may experience impaired shifting and reduced performance, potentially leading to further damage.

5. How do I diagnose the P1704 code in a Mazda?

Diagnose the code by scanning for other related codes, inspecting the transmission range sensor and its wiring for damage, and testing the sensor with a multimeter.

6. How do I fix the P1704 code in a Mazda?

Repairs may involve replacing the transmission range sensor, repairing damaged wiring, or updating/reprogramming the TCM if necessary.

7. How much does it cost to repair a P1704 code on a Mazda?

Depending on the issue, repairs can range from $200 to $500, including parts and labor, with the sensor itself typically costing $50-$150.

8. Where is the transmission range sensor located on a Mazda?

The transmission range sensor is usually mounted on the transmission housing near the gear shifter linkage.

9. Can a P1704 code cause transmission damage if not fixed?

Yes, ignoring this code can lead to improper gear engagement and increased wear on the transmission, potentially causing more severe and expensive damage.

10. Will clearing the P1704 code fix the problem?

Clearing the code might temporarily remove the Check Engine Light, but the underlying issue must be resolved to prevent the code from returning.

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