AutoCodes – Infiniti – P1846 Infiniti

P1846 Infiniti Code - Automatic Transmission Fluid Pressure Switch 6

Quick Answer

The Fail-safe function to detect front brake clutch solenoid valve condition. Common causes include Faulty Automatic Transmission Fluid (ATF) Pressure Switch 6, Automatic Transmission Fluid (ATF) Pressure Switch 6 harness is open or shorted, Automatic Transmission Fluid (ATF) Pressure Switch 6 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: P1846 Infiniti indicates Automatic Transmission Fluid Pressure Switch 6.
Common causes: Common causes include Faulty Automatic Transmission Fluid (ATF) Pressure Switch 6, Automatic Transmission Fluid (ATF) Pressure Switch 6 harness is open or shorted, Automatic Transmission Fluid (ATF) Pressure Switch 6 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 2,592

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 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1846 Infiniti Description

The Fail-safe function to detect front brake clutch solenoid valve condition. Diagnostic Trouble Code (DTC) P1846 is detected when Transmission Control Module (TCM) detects that actual gear ratio is normal, and relation between gear position and condition of Automatic Transmission Fluid (ATF) Pressure Switch 6 is irregular during depressing accelerator pedal.

OBDII Code P1846 Infiniti - Automatic Transmission Fluid Pressure Switch 6 - AutoCodes.com — P1846 Infiniti Code - Automatic Transmission Fluid Pressure Switch 6

What does this mean?

What are the Possible Causes of the DTC P1846 Infiniti?

Faulty Automatic Transmission Fluid (ATF) Pressure Switch 6
Automatic Transmission Fluid (ATF) Pressure Switch 6 harness is open or shorted
Automatic Transmission Fluid (ATF) Pressure Switch 6 circuit poor electrical connection

How to Fix the DTC P1846 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 P1846 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 P1846 Infiniti code?

Need more information on how to fix the P1846 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Infiniti Models

P1846 2003 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 6
P1846 2004 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 6
P1846 2005 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 6
P1846 2006 Infiniti G35 — Automatic Transmission Fluid Pressure Switch 6

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 Infiniti Code

1. What does OBDII code P1846 mean for an Infiniti?

Code P1846 indicates a malfunction in Automatic Transmission Fluid Pressure Switch 6, which monitors and regulates the transmission fluid pressure for proper operation.

2. What are the common symptoms of code P1846 on an Infiniti?

Symptoms may include harsh or erratic shifting, delayed gear engagement, transmission slipping, or the illumination of the check engine light.

3. What causes the P1846 code to appear on an Infiniti?

Common causes include a faulty pressure switch, damaged wiring or connectors, low or dirty transmission fluid, or internal transmission issues.

4. Can low transmission fluid trigger the P1846 code?

Yes, insufficient or contaminated transmission fluid can affect pressure readings and trigger this code.

5. How do I diagnose the P1846 code on my Infiniti?

Inspect the wiring and connectors around the pressure switch, check the transmission fluid level and condition, and test the pressure switch for proper operation using a multimeter.

6. Can I drive my Infiniti with the P1846 code?

Driving with this code is not recommended, as it may lead to further transmission damage or unsafe driving conditions due to erratic shifting.

7. How do I fix the P1846 code on an Infiniti?

Repairs may include replacing the faulty pressure switch, repairing damaged wiring, cleaning or replacing transmission fluid, or addressing internal transmission issues.

8. Is replacing the transmission fluid a possible solution for the P1846 code?

Yes, if the fluid is dirty or low, replacing or replenishing it may resolve the issue. However, further diagnosis is recommended to rule out other problems.

9. What tools are needed to troubleshoot the P1846 code?

You may need an OBDII scanner, a multimeter, and basic hand tools to inspect wiring and test the pressure switch.

10. How much does it cost to repair the P1846 code on an Infiniti?

The cost varies depending on the issue, ranging from $100â€“$300 for pressure switch replacement to $1,000 or more for extensive transmission repairs.