AutoCodes – Toyota – P1520 2001 Toyota Camry

P1520 2001 Toyota Camry Code - Stop Light Switch Signal Malfunction

Quick Answer

This signal is used to detect when the brakes have been applied. Common causes include Faulty Stop Light Switch, Stop Light Switch harness is open or shorted, Stop Light 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: P1520 2001 Toyota Camry indicates Stop Light Switch Signal Malfunction.
Common causes: Common causes include Faulty Stop Light Switch, Stop Light Switch harness is open or shorted, Stop Light 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 3,967

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 Aug 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1520 2001 Toyota Camry Description

This signal is used to detect when the brakes have been applied. The STP signal voltage is the same as the voltage supplied to the stop lights. The STP signal is used mainly to control the fuel cut–off engine speed (The fuel cut–off engine speed is reduced slightly when the vehicle is braking).

OBDII Code P1520 2001 Toyota Camry - Stop Light Switch Signal Malfunction - AutoCodes.com — P1520 2001 Toyota Camry Code - Stop Light Switch Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC P1520 2001 Toyota Camry?

Faulty Stop Light Switch
Stop Light Switch harness is open or shorted
Stop Light Switch circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P1520 2001 Toyota Camry?

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 P1520 2001 Toyota Camry 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 P1520 2001 Toyota Camry code?

Need more information on how to fix the P1520 2001 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the 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 P1520 2001 Toyota Camry Code

1. What are the common symptoms of OBDII code P1520 in a 2001 Toyota Camry?

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

2. What does the OBDII code P1520 indicate in a 2001 Toyota Camry?

- The code indicates a Stop Light Switch Signal Malfunction, which means there is an issue with the signal sent by the stop light switch to the vehicle's computer.

3. What are the possible causes of OBDII code P1520 in a 2001 Toyota Camry?

- Possible causes include a faulty stop light switch, a broken or misaligned stop light switch, damaged wiring or connectors, or a malfunctioning brake light circuit.

4. How can I diagnose the cause of OBDII code P1520 in my 2001 Toyota Camry?

- You can start by checking the stop light switch for proper operation, inspecting the wiring and connectors for any damage, and testing the brake light circuit for continuity and voltage.

5. How can I repair OBDII code P1520 in a 2001 Toyota Camry?

- The most common repair is to replace the faulty stop light switch. Ensure proper alignment and installation of the new switch, and test the brake lights and cruise control functionality after the repair.

6. Can I drive my 2001 Toyota Camry with OBDII code P1520?

- It is not recommended to drive the vehicle with this code present, as it can affect the proper operation of the brake lights and other important systems.

7. Will OBDII code P1520 cause my 2001 Toyota Camry to fail an emissions test?

- Yes, this code can cause your vehicle to fail an emissions test, as it indicates a malfunction in the stop light switch signal, which is related to the vehicle's emissions system.

8. How much does it typically cost to repair OBDII code P1520 in a 2001 Toyota Camry?

- The cost of repair can vary depending on the cause of the issue, but replacing the stop light switch is a common and relatively inexpensive repair for this code.

9. Are there any recalls or service bulletins related to OBDII code P1520 in a 2001 Toyota Camry?

- It's recommended to check with a Toyota dealership or online resources for any recalls or service bulletins related to this specific OBDII code in your vehicle.

10. Can a DIY enthusiast fix OBDII code P1520 in a 2001 Toyota Camry?

- Yes, replacing the stop light switch and checking the wiring can be done by a DIY enthusiast with the necessary tools and knowledge. However, if unsure, it's best to consult a professional mechanic.