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P1846 2005 Infiniti G35 Code - Automatic Transmission Fluid Pressure Switch 6

Quick Answer

The diagnostic trouble code P1846 in a 2005 Infiniti G35 refers to an issue with the Automatic Transmission Fluid Pressure Switch 6. Common causes include Faulty transmission fluid pressure switch, Low transmission fluid level, Contaminated or degraded transmission fluid. 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
P1846 2005 Infiniti G35 indicates Automatic Transmission Fluid Pressure Switch 6.
Common causes
Common causes include Faulty transmission fluid pressure switch, Low transmission fluid level, Contaminated or degraded transmission fluid.
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 P1846 2005 Infiniti G35 Description

The diagnostic trouble code P1846 in a 2005 Infiniti G35 refers to an issue with the Automatic Transmission Fluid Pressure Switch 6. This code indicates that there is a problem with the transmission fluid pressure switch, specifically the switch associated with the 6th gear. The transmission fluid pressure switch is responsible for monitoring the hydraulic pressure within the transmission. When this switch malfunctions, it can lead to improper shifting, harsh gear changes, and potential damage to the transmission system.

OBDII Code P1846 2005 Infiniti G35 - Automatic Transmission Fluid Pressure Switch 6
P1846 2005 Infiniti G35 Code - Automatic Transmission Fluid Pressure Switch 6

Common Causes of P1846 2005 Infiniti G35

  1. Faulty transmission fluid pressure switch
  2. Low transmission fluid level
  3. Contaminated or degraded transmission fluid
  4. Wiring or electrical issues
  5. Internal transmission problems

Symptoms of P1846 2005 Infiniti G35

  1. Harsh shifting between gears
  2. Delayed engagement when shifting
  3. Transmission slipping
  4. Illumination of the Check Engine Light
  5. Vehicle going into "limp mode"

How to Fix P1846 2005 Infiniti G35

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to confirm the P1846 code.
  2. Inspect the transmission fluid level and quality. Top off or replace the fluid if necessary.
  3. Check the wiring and connections to the transmission fluid pressure switch for any damage or corrosion. Repair or replace as needed.
  4. Replace the transmission fluid pressure switch if it is found to be faulty.
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1846 2005 Infiniti G35

The cost of repairing the Automatic Transmission Fluid Pressure Switch 6 issue can vary depending on the specific cause of the problem. On average, the cost of replacing the transmission fluid pressure switch and addressing related issues can range from $200 to $500. This estimate includes parts and labor. However, it is important to note that labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate based on your location and vehicle.

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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 P1846 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1846 on a 2005 Infiniti G35 related to the Automatic Transmission Fluid Pressure Switch 6?

- Common symptoms include harsh shifting, transmission slippage, delayed engagement, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P1846 on a 2005 Infiniti G35?

- Possible causes include a faulty transmission fluid pressure switch, low transmission fluid levels, a clogged transmission filter, or issues with the transmission control module.

3. How can I diagnose OBDII code P1846 on a 2005 Infiniti G35?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the transmission fluid level and condition, inspecting the transmission pressure switch, and examining the wiring and connectors for any damage.

4. Is it safe to continue driving a 2005 Infiniti G35 with OBDII code P1846?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission and potentially leave you stranded.

5. Can I repair OBDII code P1846 on a 2005 Infiniti G35 at home?

- While some DIY enthusiasts may attempt to address this code at home by checking fluid levels and connections, it is recommended to have a professional mechanic diagnose and repair the issue due to the complexity of transmission systems.

6. How much does it typically cost to repair OBDII code P1846 on a 2005 Infiniti G35?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can resetting the OBDII code P1846 on a 2005 Infiniti G35 make the problem go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to return and potentially worsen over time.

8. What are some preventive maintenance tips to avoid OBDII code P1846 on a 2005 Infiniti G35?

- Regularly checking and servicing the transmission fluid, maintaining proper fluid levels, and addressing any transmission-related symptoms promptly can help prevent issues leading to this code.

9. How crucial is it to address OBDII code P1846 promptly on a 2005 Infiniti G35?

- Promptly addressing this code is crucial to prevent further damage to the transmission and ensure the vehicle operates safely and reliably.

10. Can a faulty Automatic Transmission Fluid Pressure Switch 6 cause other transmission-related issues on a 2005 Infiniti G35?

- Yes, a faulty pressure switch can cause various transmission-related issues beyond just triggering OBDII code P1846, potentially affecting the overall performance and drivability of the vehicle.

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