AutoCodes – Nissan – P1805 2004 Nissan Altima Sedan

P1805 2004 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 2004 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 3,033

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 2004 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 2004 Nissan Altima Sedan - Stop Lamp Switch - AutoCodes.com — P1805 2004 Nissan Altima Sedan Code - Stop Lamp Switch

What does this mean?

What are the Possible Causes of the DTC P1805 2004 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 2004 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 2004 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 2004 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 2004 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P1805 in a 2004 Nissan Altima Sedan related to the Stop Lamp Switch?

- Common symptoms include the inability to shift out of park, the brake lights staying on constantly, and issues with the cruise control system.

2. What is the main cause of OBDII code P1805 in a 2004 Nissan Altima Sedan related to the Stop Lamp Switch?

- The most common cause of this code is a faulty or misadjusted stop lamp switch.

3. How can I diagnose a faulty stop lamp switch causing OBDII code P1805 in my 2004 Nissan Altima Sedan?

- You can check the stop lamp switch by ensuring it is properly adjusted and testing it with a multimeter to verify continuity when the brake pedal is pressed.

4. Can a malfunctioning stop lamp switch cause safety issues in a 2004 Nissan Altima Sedan with OBDII code P1805?

- Yes, a faulty stop lamp switch can potentially lead to safety concerns as it may affect the brake lights, cruise control, and the ability to shift gears.

5. Is it possible to repair the stop lamp switch causing OBDII code P1805 in a 2004 Nissan Altima Sedan, or does it need to be replaced?

- In most cases, the stop lamp switch will need to be replaced to resolve the issue and clear the OBDII code P1805.

6. Are there any DIY repair tips for addressing OBDII code P1805 related to the stop lamp switch in a 2004 Nissan Altima Sedan?

- DIY enthusiasts can attempt to replace the stop lamp switch themselves by following a repair guide specific to their vehicle model and using the necessary tools.

7. Will resetting the OBDII code P1805 in a 2004 Nissan Altima Sedan resolve the issue related to the stop lamp switch?

- Resetting the code may temporarily clear it, but if the underlying issue with the stop lamp switch is not addressed, the code is likely to return.

8. How critical is it to address OBDII code P1805 caused by a faulty stop lamp switch in a 2004 Nissan Altima Sedan?

- It is important to address this issue promptly as it can impact the vehicle's safety systems and overall functionality.

9. Can a professional mechanic help diagnose and repair OBDII code P1805 related to the stop lamp switch in a 2004 Nissan Altima Sedan?

- Yes, a professional mechanic can accurately diagnose the issue, replace the faulty stop lamp switch, and clear the OBDII code P1805 in a 2004 Nissan Altima Sedan.

10. Are there any recalls or technical service bulletins related to OBDII code P1805 in a 2004 Nissan Altima Sedan due to the stop lamp switch issue?

- It is recommended to check with the manufacturer or a Nissan dealership to inquire about any recalls or technical service bulletins regarding this specific problem.