AutoCodesToyota – P0505 2017 Toyota RAV4

P0505 2017 Toyota RAV4 Code - Idle Air Control System

Quick Answer

The idle speed is controlled by the Electronic Throttle Control System (ETCS). Common causes include Dirty Throttle Body, Faulty Electronic Throttle Control System (ETCS) (Throttle Body), Electronic Throttle Control System harness is open or shorted. 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
P0505 2017 Toyota RAV4 indicates Idle Air Control System.
Common causes
Common causes include Dirty Throttle Body, Faulty Electronic Throttle Control System (ETCS) (Throttle Body), Electronic Throttle Control System harness is open or shorted.
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 516
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 01, 2022
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Code P0505 2017 Toyota RAV4 Description

The idle speed is controlled by the Electronic Throttle Control System (ETCS). The ETCS is comprised of 1) the one valve type throttle body; 2) the throttle actuator, which operates the throttle valve; 3) the throttle position sensor, which detects the opening angle of the throttle valve; 4) the accelerator pedal position sensor, which detects the accelerator pedal position; and 5) the Engine Control Module (ECM), which controls the ETCS. Based on the target idle speed, the ECM controls the throttle actuator to provide the proper throttle valve opening angle.
The ECM monitors the idle speed and idling airflow volume to conduct Idle Speed Control (ISC). The ECM determines that the ISC system is malfunctioning if the Idle speed continues to vary greatly from the target idle speed.
OBDII Code P0505 2017 Toyota RAV4 - Idle Air Control System - AutoCodes.com
P0505 2017 Toyota RAV4 Code - Idle Air Control System

What are the Possible Causes of the DTC P0505 2017 Toyota RAV4?

  • Dirty Throttle Body
  • Faulty Electronic Throttle Control System (ETCS) (Throttle Body)
  • Electronic Throttle Control System harness is open or shorted
  • Electronic Throttle Control System circuit poor electrical connection
  • Air Induction System (Intake leak)
  • PCV hose connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0505 2017 Toyota RAV4?

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 P0505 2017 Toyota RAV4 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 P0505 2017 Toyota RAV4 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 P0505 2017 Toyota RAV4 Code

What does the OBDII code P0505 mean for a 2017 Toyota RAV4?

Code P0505 indicates a malfunction in the Idle Air Control System, which regulates the engine's idle speed.

What are common symptoms of code P0505 in a 2017 Toyota RAV4?

Symptoms include rough idling, fluctuating idle speeds, stalling, or difficulty starting the engine.

What causes the P0505 code to appear in a 2017 Toyota RAV4?

Possible causes include a dirty or faulty idle air control valve, vacuum leaks, damaged wiring, or issues with the throttle body.

Can a dirty throttle body trigger code P0505 in a 2017 Toyota RAV4?

Yes, carbon buildup on the throttle body can restrict airflow and interfere with idle speed control.

How do I fix code P0505 on a 2017 Toyota RAV4?

Clean the throttle body and idle air control valve, check for vacuum leaks, inspect wiring, and replace faulty components as needed.

Can driving with code P0505 damage my 2017 Toyota RAV4?

Driving with this code may lead to stalling or reduced engine performance, but it’s unlikely to cause major damage if addressed promptly.

How do I clean the idle air control valve for a 2017 Toyota RAV4?

Remove the valve, spray it with throttle body cleaner, and gently scrub away any carbon buildup before reinstalling.

Can a bad idle air control valve lead to stalling in a 2017 Toyota RAV4?

Yes, a malfunctioning valve can disrupt airflow and cause the engine to stall, especially at idle.

Is a vacuum leak a common cause of P0505 in a 2017 Toyota RAV4?

Yes, vacuum leaks can affect the idle air control system and lead to improper idle speed.

Do I need a professional mechanic to fix code P0505 on my 2017 Toyota RAV4?

While cleaning components and checking for leaks can be done at home, diagnosing deeper electrical or mechanical issues may require a professional.

Discuss the causes and fixes for P0505 2017 Toyota RAV4 OBDII Code

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