AutoCodes – Nissan – P1805 2002 Nissan Altima Sedan

P1805 2002 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 2002 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 3,387

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 2002 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 2002 Nissan Altima Sedan - Stop Lamp Switch - AutoCodes.com — P1805 2002 Nissan Altima Sedan Code - Stop Lamp Switch

What does this mean?

What are the Possible Causes of the DTC P1805 2002 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 2002 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 2002 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.

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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 2002 Nissan Altima Sedan Code

1. What does OBDII code P1805 on a 2002 Nissan Altima Sedan indicate?

- OBDII code P1805 on a 2002 Nissan Altima Sedan refers to an issue with the Stop Lamp Switch.

2. What are the common symptoms of a faulty Stop Lamp Switch triggering code P1805?

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

3. What are the possible causes of OBDII code P1805 related to the Stop Lamp Switch in a 2002 Nissan Altima?

- The main causes can be a malfunctioning or misadjusted stop lamp switch, wiring issues, or a faulty brake light bulb.

4. How can I diagnose a Stop Lamp Switch issue triggering code P1805 on my 2002 Nissan Altima Sedan?

- To diagnose the issue, check the brake lights' operation, inspect the stop lamp switch for proper adjustment and functionality, and scan for any other related fault codes.

5. Can a faulty Stop Lamp Switch causing OBDII code P1805 be repaired, or does it need to be replaced?

- Depending on the severity of the issue, the stop lamp switch may need to be readjusted, repaired, or replaced to resolve the P1805 code.

6. Is it safe to continue driving my 2002 Nissan Altima Sedan with OBDII code P1805 due to a Stop Lamp Switch problem?

- It is not recommended to drive the vehicle with a malfunctioning stop lamp switch, as it can affect the brake lights' operation and compromise safety.

7. Are there any DIY tips to troubleshoot and potentially fix the Stop Lamp Switch issue causing code P1805?

- DIY tips include checking and adjusting the stop lamp switch position, inspecting the wiring for any damage, and ensuring the brake light bulbs are in good condition.

8. How much does it typically cost to replace a faulty Stop Lamp Switch triggering OBDII code P1805 on a 2002 Nissan Altima Sedan?

- The cost of replacing a stop lamp switch can vary based on the part's price and labor charges, but it is generally an affordable repair.

9. Will resetting the OBDII code P1805 related to the Stop Lamp Switch on my 2002 Nissan Altima Sedan make the issue go away?

- Simply resetting the code may temporarily clear the warning, but the underlying problem with the stop lamp switch should be addressed to prevent further issues.

10. Can a mechanic easily diagnose and repair a Stop Lamp Switch problem causing OBDII code P1805 on a 2002 Nissan Altima Sedan?

- Yes, a qualified mechanic can efficiently diagnose and repair a stop lamp switch issue triggering code P1805 on a 2002 Nissan Altima Sedan using diagnostic tools and their expertise.