AutoCodes – Nissan – P1805 2012 Nissan Altima Sedan

P1805 2012 Nissan Altima Sedan Code - Stop Lamp Switch

Quick Answer

The brake switch signal is applied to the Engine Control Module (ECM) through the stop lamp switch when the brake pedal is depressed. Common causes include Faulty Stop Lamp Switch, Stop Lamp Switch harness is open or shorted, Stop Lamp Switch 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: P1805 2012 Nissan Altima Sedan indicates Stop Lamp Switch.
Common causes: Common causes include Faulty Stop Lamp Switch, Stop Lamp Switch harness is open or shorted, Stop Lamp Switch 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 3,663

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 05, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1805 2012 Nissan Altima Sedan Description

The brake switch signal is applied to the Engine Control Module (ECM) through the stop lamp switch when the brake pedal is depressed. This signal is used mainly to decrease the engine speed when the vehicle is driving. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a faulty Stop Lamp Switch.

OBDII Code P1805 2012 Nissan Altima Sedan - Stop Lamp Switch - AutoCodes.com — P1805 2012 Nissan Altima Sedan Code - Stop Lamp Switch

What does this mean?

What are the Possible Causes of the DTC P1805 2012 Nissan Altima Sedan?

Faulty Stop Lamp Switch
Stop Lamp Switch harness is open or shorted
Stop Lamp Switch circuit poor electrical connection

How to Fix the DTC P1805 2012 Nissan Altima Sedan?

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 P1805 2012 Nissan Altima Sedan 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 P1805 2012 Nissan Altima Sedan 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 P1805 2012 Nissan Altima Sedan Code

1. What does OBDII code P1805 on a 2012 Nissan Altima Sedan indicate?

This code refers to a malfunction in the stop lamp switch circuit.

2. What are the common symptoms of a P1805 code in a Nissan Altima Sedan?

Common symptoms include the brake lights staying on constantly, the inability to shift out of park, and the cruise control not working.

3. What are the possible causes of a P1805 code in a 2012 Nissan Altima Sedan?

The main causes can be a faulty stop lamp switch, a defective wiring harness, or a problem with the brake pedal position sensor.

4. How can I diagnose the source of a P1805 code in my Nissan Altima Sedan?

You can start by checking the stop lamp switch for proper operation, inspecting the wiring for any damage, and testing the brake pedal position sensor using a multimeter.

5. Can I still drive my Nissan Altima Sedan with a P1805 code?

It is not recommended to drive the vehicle with a P1805 code, as it can affect the proper functioning of critical safety features like the brake lights and shift interlock system.

6. How do I repair a P1805 code on my 2012 Nissan Altima Sedan?

Repairing a P1805 code typically involves replacing the faulty stop lamp switch, repairing any damaged wiring, or recalibrating the brake pedal position sensor.

7. Is it possible to reset a P1805 code on a Nissan Altima Sedan without fixing the underlying issue?

While you can clear the code temporarily, it will likely reappear if the root cause of the issue is not addressed.

8. Will a P1805 code cause my Nissan Altima Sedan to fail an emissions test?

Yes, a P1805 code can cause your vehicle to fail an emissions test, as it indicates a malfunction in the stop lamp switch circuit.

9. How much does it cost to repair a P1805 code on a 2012 Nissan Altima Sedan?

The cost of repairing a P1805 code can vary depending on the cause of the issue, but it typically ranges from $100 to $300 for parts and labor.

10. Can I fix a P1805 code in my Nissan Altima Sedan myself, or should I take it to a mechanic?

If you have experience working on automotive electrical systems, you may be able to fix a P1805 code yourself. Otherwise, it is recommended to seek the assistance of a qualified mechanic to ensure the issue is properly diagnosed and repaired.