Engine-CodesNissan – P1805 2007 Nissan Sentra

P1805 2007 Nissan Sentra Code - Stop Lamp Switch

Quick Answer

The P1805 diagnostic trouble code (DTC) in a 2007 Nissan Sentra refers to an issue with the Stop Lamp Switch. Common causes include Faulty or worn-out Stop Lamp Switch, Damaged or corroded wiring connected to the switch, Issues with the brake pedal position sensor. 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 2007 Nissan Sentra indicates Stop Lamp Switch.
Common causes
Common causes include Faulty or worn-out Stop Lamp Switch, Damaged or corroded wiring connected to the switch, Issues with the brake pedal position sensor.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P1805 2007 Nissan Sentra Description

The P1805 diagnostic trouble code (DTC) in a 2007 Nissan Sentra refers to an issue with the Stop Lamp Switch. This switch is a crucial component of the vehicle's brake system, responsible for activating the brake lights when the brake pedal is pressed. When this switch malfunctions or fails, it can have significant implications for the safety and functionality of the vehicle.

OBDII Code P1805 2007 Nissan Sentra - Stop Lamp Switch
P1805 2007 Nissan Sentra Code - Stop Lamp Switch

Common Causes of P1805 2007 Nissan Sentra

  1. Faulty or worn-out Stop Lamp Switch.
  2. Damaged or corroded wiring connected to the switch.
  3. Issues with the brake pedal position sensor.
  4. Loose or disconnected electrical connections.
  5. Water or moisture damage affecting the switch.

Symptoms of P1805 2007 Nissan Sentra

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Cruise control system not engaging or disengaging properly.
  3. Dashboard warning light indicating a brake system issue.
  4. Difficulty shifting out of park due to the brake interlock system being affected.
  5. Vehicle not starting due to a faulty brake pedal position sensor.

How to Fix P1805 2007 Nissan Sentra

  1. Locate the Stop Lamp Switch: The switch is typically located near the brake pedal arm under the dashboard.
  2. Disconnect the wiring harness: Remove the electrical connector from the switch.
  3. Remove the old switch: Unbolt the switch from its mounting bracket.
  4. Install the new switch: Secure the new switch in place and reconnect the wiring harness.
  5. Test the brake lights: Have someone press the brake pedal while you check if the brake lights illuminate properly.

Cost to Fix P1805 2007 Nissan Sentra

The cost of repairing a faulty Stop Lamp Switch in a 2007 Nissan Sentra can vary depending on the specific components needing replacement and the labor rates in your area. On average, the parts for this repair can range from $30 to $80, while labor costs can add an additional $80 to $150 per hour. Overall, you can expect a total repair cost of around $100 to $300 for this issue. It's important to note that these estimates are general guidelines and actual costs may differ based on various factors. Be sure to consult with a trusted mechanic or repair shop for a more accurate quote.

Tech Notes for P1805 2007 Nissan Sentra

Check to see all the brake lights are working, if they are not check the stop lamp switch. (see picture)

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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 2007 Nissan Sentra Code

1. What does the OBDII code P1805 mean on a 2007 Nissan Sentra?

P1805 refers to an issue with the Stop Lamp Switch, which signals the vehicle's computer when the brake pedal is pressed.

2. What are the common symptoms of a P1805 code on a 2007 Nissan Sentra?

Symptoms may include the brake lights not functioning, the vehicle not shifting out of park, or the cruise control not working.

3. What causes the P1805 code to appear on a 2007 Nissan Sentra?

Common causes include a faulty stop lamp switch, damaged or corroded wiring, or a blown fuse related to the brake light circuit.

4. Can I drive my 2007 Nissan Sentra with a P1805 code?

While the car may still be drivable, issues like non-functional brake lights or inability to shift out of park could pose safety risks.

5. How do I fix the P1805 code on my 2007 Nissan Sentra?

Inspect and replace the stop lamp switch if defective, check for damaged wiring, and ensure all related fuses are intact.

6. Where is the stop lamp switch located in the 2007 Nissan Sentra?

The stop lamp switch is typically located near the brake pedal assembly and is activated when the pedal is pressed.

7. How much does it cost to repair a P1805 code on a 2007 Nissan Sentra?

The cost to replace a stop lamp switch typically ranges from $50 to $150, including parts and labor, depending on the shop.

8. Does a P1805 code affect the transmission of a 2007 Nissan Sentra?

Yes, it can prevent the transmission from shifting out of park due to the safety interlock relying on the brake signal from the stop lamp switch.

9. Can a blown fuse cause the P1805 code on a 2007 Nissan Sentra?

Yes, a blown fuse in the brake light circuit can interrupt the stop lamp switch's operation and trigger the code.

10. How do I clear a P1805 code after repairs on my 2007 Nissan Sentra?

After repairs, use an OBDII scanner to clear the code, or the code may clear on its own after several drive cycles if the issue is resolved.

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