AutoCodes – Toyota – P1520 1998 Toyota Camry

P1520 1998 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 1998 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 2,987

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 1998 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 1998 Toyota Camry - Stop Light Switch Signal Malfunction - AutoCodes.com — P1520 1998 Toyota Camry Code - Stop Light Switch Signal Malfunction

What does this mean?

What are the Possible Causes of the DTC P1520 1998 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 1998 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 1998 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 1998 Toyota Camry code?

Need more information on how to fix the P1520 1998 Toyota Camry code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1520 1998 Toyota Camry code diagnosed by a professional: Find a repair shop in your area

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 1998 Toyota Camry Code

1. What are the common symptoms of OBDII code P1520 in a 1998 Toyota Camry?

The common symptoms of OBDII code P1520 in a 1998 Toyota Camry include issues with the brake lights, cruise control not working, and difficulty shifting out of park.

2. What is the main cause of OBDII code P1520 in a 1998 Toyota Camry?

The main cause of OBDII code P1520 in a 1998 Toyota Camry is a malfunctioning stop light switch.

3. How does a malfunctioning stop light switch trigger OBDII code P1520 in a 1998 Toyota Camry?

When the stop light switch malfunctions, it fails to send a signal to the Engine Control Module (ECM) indicating that the brake pedal is depressed, triggering the P1520 error code.

4. Can a faulty stop light switch be repaired, or does it need to be replaced in a 1998 Toyota Camry?

In most cases, a faulty stop light switch in a 1998 Toyota Camry will need to be replaced rather than repaired.

5. Are there any DIY tips for repairing OBDII code P1520 in a 1998 Toyota Camry?

DIY tips for repairing OBDII code P1520 in a 1998 Toyota Camry include checking the wiring and connections to the stop light switch, ensuring it is properly aligned and functioning correctly.

6. How important is it to address OBDII code P1520 in a 1998 Toyota Camry promptly?

It is essential to address OBDII code P1520 promptly in a 1998 Toyota Camry to ensure the proper functioning of the brake lights and related safety systems.

7. Can OBDII code P1520 in a 1998 Toyota Camry cause other issues if left untreated?

If left untreated, OBDII code P1520 in a 1998 Toyota Camry can cause issues with the vehicle's cruise control system and may lead to difficulties shifting out of park.

8. Is it safe to continue driving a 1998 Toyota Camry with OBDII code P1520?

It is not recommended to continue driving a 1998 Toyota Camry with OBDII code P1520, as it may compromise the proper operation of essential safety systems.

9. How long does it typically take to replace a faulty stop light switch in a 1998 Toyota Camry?

Replacing a faulty stop light switch in a 1998 Toyota Camry is a relatively quick process and can typically be done within an hour or so.

10. Can a mechanic easily diagnose OBDII code P1520 in a 1998 Toyota Camry?

Yes, a mechanic can easily diagnose OBDII code P1520 in a 1998 Toyota Camry using a diagnostic scanner to retrieve the specific fault code and pinpoint the issue with the stop light switch.