AutoCodes – Toyota – P1605 2017 Toyota RAV4

P1605 2017 Toyota RAV4 Code - Engine Rough Idling

Quick Answer

After starting the engine, this Diagnostic Trouble Code (DTC) is stored if the engine speed drops below the set speed. Common causes include Air Leak in Intake System, Faulty Mass Air Flow (MAF) sensor, Faulty Engine Coolant Temperature 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
P1605 2017 Toyota RAV4 indicates Engine Rough Idling.
Common causes
Common causes include Air Leak in Intake System, Faulty Mass Air Flow (MAF) sensor, Faulty Engine Coolant Temperature 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 770
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 06, 2022
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Code P1605 2017 Toyota RAV4 Description

After starting the engine, this Diagnostic Trouble Code (DTC) is stored if the engine speed drops below the set speed. With the engine running, the engine stops (the engine speed drops to 200 RPM or less) without the ignition switch being operated for 0.5 seconds or more. It is necessary to check if the vehicle has run out of fuel before performing troubleshooting, as this DTC is also stored when the engine stalls due to running out of fuel.
OBDII Code P1605 2017 Toyota RAV4 - Engine Rough Idling - AutoCodes.com
P1605 2017 Toyota RAV4 Code - Engine Rough Idling

What are the Possible Causes of the DTC P1605 2017 Toyota RAV4?

  • Air Leak in Intake System
  • Faulty Mass Air Flow (MAF) sensor
  • Faulty Engine Coolant Temperature Sensor
  • Faulty Fuel Pump
  • Faulty Throttle Body Assembly
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P1605 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 P1605 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 P1605 2017 Toyota RAV4 code?

Need more information on how to fix the P1605 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1605 2017 Toyota RAV4 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 P1605 2017 Toyota RAV4 Code

1. What does the OBDII code P1605 mean for a 2017 Toyota RAV4?

P1605 indicates "Engine Rough Idling," meaning the engine control module (ECM) has detected irregular engine operation at idle.

2. What are the common symptoms of the P1605 code in a 2017 Toyota RAV4?

Symptoms include rough engine idling, engine stalling at idle, reduced fuel efficiency, and possible illumination of the check engine light.

3. What causes the P1605 code to appear in a Toyota RAV4?

The most common causes are dirty or faulty throttle bodies, malfunctioning idle air control valves, vacuum leaks, or issues with the fuel or ignition system.

4. Can a dirty throttle body trigger the P1605 code?

Yes, carbon buildup on the throttle body can disrupt airflow and cause rough idling, leading to the P1605 code.

5. How do vacuum leaks contribute to the P1605 code?

Vacuum leaks allow unmetered air into the engine, disrupting the air-fuel mixture and causing rough idling, which can trigger the P1605 code.

6. Is it safe to drive a 2017 Toyota RAV4 with the P1605 code?

While the vehicle may still be drivable, prolonged operation with this code can lead to stalling or further damage, so it's best to address it promptly.

7. What tools are needed to diagnose the P1605 code?

A diagnostic scanner, a multimeter, and basic tools to inspect the throttle body, vacuum hoses, and ignition components are typically required.

8. How can the P1605 code be fixed in a 2017 Toyota RAV4?

Repairs may include cleaning or replacing the throttle body, repairing vacuum leaks, replacing faulty sensors, or addressing fuel system issues.

9. Can a software update fix the P1605 code in a Toyota RAV4?

In rare cases, an ECM software update from the dealership may resolve the issue if it's related to programming errors.

10. How much does it cost to fix the P1605 code on a 2017 Toyota RAV4?

Repair costs vary depending on the issue, ranging from $100 for a throttle body cleaning to $500 or more for part replacements.

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