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Engine-Codes – Generic – P179F

P179F Code - Sensor For Transmission Range Malfunction

Quick Answer

The diagnostic trouble code P179F indicates a malfunction in the sensor for transmission range. Common causes include Faulty sensor for transmission range, Damaged wiring or connectors leading to the sensor, Issues with the transmission control module. 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
P179F indicates Sensor For Transmission Range Malfunction.
Common causes
Common causes include Faulty sensor for transmission range, Damaged wiring or connectors leading to the sensor, Issues with the transmission control module.
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 22, 2024
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Code P179F Description

The diagnostic trouble code P179F indicates a malfunction in the sensor for transmission range. This sensor is responsible for detecting the position of the gear shift lever and relaying this information to the vehicle's transmission control module. When this sensor malfunctions, it can lead to issues with shifting gears, causing the vehicle to have difficulty changing gears or even getting stuck in a particular gear.

OBDII Code P179F - Sensor For Transmission Range Malfunction
P179F Code - Sensor For Transmission Range Malfunction

Common Causes of P179F

  1. Faulty sensor for transmission range
  2. Damaged wiring or connectors leading to the sensor
  3. Issues with the transmission control module
  4. Problems with the gear shift lever mechanism

Symptoms of P179F

  1. Difficulty shifting gears or getting stuck in a particular gear
  2. Incorrect gear display on the dashboard
  3. Delayed engagement when shifting from park to drive or reverse
  4. Transmission slipping or jerking during gear changes
  5. Illumination of the check engine light

How to Fix P179F

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the malfunction.
  2. Inspect the sensor for transmission range, wiring, and connectors for any visible damage or wear. Replace any damaged components as needed.
  3. Test the sensor's functionality by manually shifting gears and checking if the sensor accurately detects the gear position.
  4. If the sensor is confirmed to be faulty, replace it with a new, OEM-approved sensor to ensure proper operation.
  5. Clear the trouble codes from the vehicle's computer system and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P179F

The typical repair costs for addressing a sensor for transmission range malfunction can range from $200 to $500, including parts and labor. However, it's important to note that 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. Most auto repair shops commonly charge between $80 and $150 per hour for labor. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.

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Code P179F Information for Specific Makes

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 P179F Code

1. What are the common symptoms of OBDII code P179F (Sensor For Transmission Range Malfunction)?

- Common symptoms include erratic shifting, difficulty shifting gears, and the transmission getting stuck in a particular gear.

2. What can cause the OBDII code P179F to trigger?

- The code P179F can be triggered by a faulty transmission range sensor, damaged wiring or connectors related to the sensor, or internal transmission issues.

3. How serious is the OBDII code P179F?

- The code P179F should be addressed promptly as it can lead to drivability issues and potential damage to the transmission if left unresolved.

4. How can I diagnose the cause of OBDII code P179F?

- A thorough inspection of the transmission range sensor, wiring, and connectors is necessary to diagnose the cause of the code P179F. Additionally, conducting a transmission scan may help pinpoint the issue.

5. Can I still drive my vehicle with the OBDII code P179F present?

- It is not recommended to drive your vehicle with the OBDII code P179F present, as it can result in further damage to the transmission or safety hazards on the road.

6. How much does it typically cost to repair the OBDII code P179F?

- The cost of repairing the OBDII code P179F can vary depending on the underlying cause. It may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can I reset the OBDII code P179F myself?

- While you can reset the code using an OBDII scanner, it is crucial to address the root cause of the issue to prevent the code from reoccurring.

8. Are there any DIY repair tips for fixing the OBDII code P179F?

- DIY repair for the code P179F may involve checking and cleaning the transmission range sensor and its connections. However, for more complex issues, it is recommended to seek professional help.

9. How long does it take to repair the OBDII code P179F?

- The repair time for the OBDII code P179F can vary based on the specific cause and required repairs. It may take a few hours to a full day to address the issue effectively.

10. Can a faulty transmission range sensor cause other problems besides triggering the OBDII code P179F?

- Yes, a faulty transmission range sensor can cause other issues such as incorrect gear selection, harsh shifting, and even prevent the vehicle from starting in some cases.

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