AutoCodesToyota – P1603 2015 Toyota RAV4

P1603 2015 Toyota RAV4 Code - Engine Stall History

Quick Answer

After starting the engine, this Diagnostic Trouble Code (DTC) is stored when the engine stops without the ignition switch being operated. 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
P1603 2015 Toyota RAV4 indicates Engine Stall History.
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.
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Code Popularity 2,902
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 P1603 2015 Toyota RAV4 Description

After starting the engine, this Diagnostic Trouble Code (DTC) is stored when the engine stops without the ignition switch being operated. 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 P1603 2015 Toyota RAV4 - Engine Stall History - AutoCodes.com
P1603 2015 Toyota RAV4 Code - Engine Stall History

What are the Possible Causes of the DTC P1603 2015 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 P1603 2015 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 P1603 2015 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 P1603 2015 Toyota RAV4 code?

Need more information on how to fix the P1603 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1603 2015 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 P1603 2015 Toyota RAV4 Code

1. What does the OBDII code P1603 mean on a 2015 Toyota RAV4?

P1603 indicates "Engine Stall History," meaning the vehicle's Engine Control Module (ECM) has detected a history of engine stalling events.

2. What are the common symptoms of code P1603 on a 2015 Toyota RAV4?

Symptoms may include the engine stalling unexpectedly, difficulty restarting, reduced engine performance, and an illuminated check engine light.

3. What causes the P1603 code in a 2015 Toyota RAV4?

Possible causes include a weak or failing battery, a faulty alternator, wiring or connectivity issues, a malfunctioning ECM, or fuel delivery problems.

4. Can a low battery cause the P1603 code on my 2015 Toyota RAV4?

Yes, a low or failing battery can result in insufficient power to the ECM, potentially triggering the P1603 code.

5. How is the P1603 code diagnosed on a 2015 Toyota RAV4?

A mechanic will typically perform a battery and charging system test, inspect wiring and connectors, check for fuel delivery issues, and use a scan tool to monitor ECM data.

6. Is it safe to drive with the P1603 code on a 2015 Toyota RAV4?

Driving with this code can be risky, as engine stalling may occur while driving, which can compromise safety. It’s best to address the issue promptly.

7. How can I fix the P1603 code on a 2015 Toyota RAV4?

Repairs may involve replacing a weak battery, repairing wiring or connections, replacing a faulty alternator, or reprogramming or replacing the ECM if needed.

8. Can a dirty throttle body cause the P1603 code on a 2015 Toyota RAV4?

Yes, a dirty or clogged throttle body can lead to engine stalling, which may trigger the P1603 code.

9. How much does it cost to fix the P1603 code on a 2015 Toyota RAV4?

The cost varies depending on the root cause. For instance, a battery replacement may cost $100-$200, while ECM repairs or replacement can range from $500 to $1,500.

10. Will clearing the P1603 code fix the issue on my 2015 Toyota RAV4?

Clearing the code will remove it temporarily, but if the underlying problem isn’t addressed, the code will likely return.

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