AutoCodes – Nissan – P1805 2008 Nissan Altima Sedan

P1805 2008 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 2008 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 3,614

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 2008 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 2008 Nissan Altima Sedan - Stop Lamp Switch - AutoCodes.com — P1805 2008 Nissan Altima Sedan Code - Stop Lamp Switch

What does this mean?

What are the Possible Causes of the DTC P1805 2008 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 2008 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 2008 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 2008 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 2008 Nissan Altima Sedan Code

1. What does OBDII code P1805 on a 2008 Nissan Altima Sedan indicate?

The P1805 code on a 2008 Nissan Altima Sedan specifically refers to an issue with the Stop Lamp Switch.

2. What are the common symptoms of a P1805 code in a 2008 Nissan Altima Sedan?

Common symptoms of a P1805 code may include the inability to shift out of park, cruise control not working, or the brake lights staying on constantly.

3. What are the potential causes of a P1805 code in a 2008 Nissan Altima Sedan?

The most common cause of a P1805 code is a faulty or misadjusted stop lamp switch, which is responsible for detecting when the brake pedal is pressed.

4. How can I diagnose a P1805 code in my 2008 Nissan Altima Sedan?

To diagnose a P1805 code, you can start by checking the stop lamp switch for proper adjustment and functionality. Inspect the wiring and connections related to the stop lamp switch as well.

5. Can a P1805 code in a 2008 Nissan Altima Sedan be repaired at home?

Yes, if the issue is with the stop lamp switch, it can often be adjusted or replaced at home with basic tools. However, if the wiring or connections are at fault, professional help may be needed.

6. Is it safe to continue driving with a P1805 code in a 2008 Nissan Altima Sedan?

It is not recommended to drive with a P1805 code, as it can affect crucial safety features like brake lights and proper shifting. Address the issue promptly to ensure safe driving.

7. How much does it typically cost to repair a P1805 code in a 2008 Nissan Altima Sedan?

The cost of repairing a P1805 code can vary depending on the exact cause of the issue. Replacing a stop lamp switch may cost between $50 to $150, including parts and labor.

8. Can a P1805 code in a 2008 Nissan Altima Sedan cause other problems if left unresolved?

Yes, if left unresolved, a P1805 code can potentially lead to safety hazards such as rear-end collisions due to malfunctioning brake lights or difficulty shifting gears.

9. Are there any preventive measures to avoid the recurrence of a P1805 code in a 2008 Nissan Altima Sedan?

Regularly checking and maintaining the stop lamp switch, along with ensuring proper brake system function, can help prevent the recurrence of a P1805 code in the future.

10. Will resetting the OBDII system clear a P1805 code on a 2008 Nissan Altima Sedan?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the stop lamp switch is not addressed, the code is likely to reappear.