AutoCodes – Toyota – P1603 2016 Toyota RAV4

P1603 2016 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 2016 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 954
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 2016 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 2016 Toyota RAV4 - Engine Stall History - AutoCodes.com
P1603 2016 Toyota RAV4 Code - Engine Stall History

What are the Possible Causes of the DTC P1603 2016 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 2016 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 2016 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 2016 Toyota RAV4 code?

Need more information on how to fix the P1603 2016 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1603 2016 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 2016 Toyota RAV4 Code

1. What does the OBDII code P1603 mean on a 2016 Toyota RAV4?

P1603 indicates "Engine Stall History," which means the engine has experienced unexpected stalling during operation.

2. What are the common symptoms of the P1603 code in a 2016 Toyota RAV4?

Symptoms may include engine stalling while driving or idling, difficulty restarting the engine, and the check engine light illuminating.

3. What causes the P1603 code to appear on my Toyota RAV4?

Potential causes include a weak or failing battery, faulty powertrain control module (PCM), issues with the fuel system, or a malfunctioning crankshaft position sensor.

4. Can a low battery cause the P1603 code in a 2016 Toyota RAV4?

Yes, a weak or failing battery can cause voltage drops that may lead to engine stalling and trigger the P1603 code.

5. How do I diagnose the P1603 code on my Toyota RAV4?

Start by checking the battery and alternator, inspecting the fuel system components, verifying proper connections to the PCM, and using a scan tool to monitor related sensor data.

6. Can a dirty throttle body cause the P1603 code?

Yes, a dirty throttle body can cause airflow issues, leading to stalling and potentially triggering the P1603 code.

7. Is it safe to drive my 2016 Toyota RAV4 with the P1603 code?

Driving with this code is not recommended, as the engine may stall unexpectedly, posing a safety risk.

8. How do I fix the P1603 code on my 2016 Toyota RAV4?

Repairs may include charging or replacing the battery, repairing faulty wiring, cleaning the throttle body, or replacing malfunctioning components like the PCM or crankshaft position sensor.

9. Will clearing the P1603 code fix the problem in my Toyota RAV4?

Clearing the code will remove it temporarily, but the underlying issue needs to be addressed to prevent the code from returning.

10. How much does it cost to repair the P1603 code on a 2016 Toyota RAV4?

Repair costs vary depending on the cause but may range from $50 for a battery test and cleaning to over $1,000 for PCM replacement.

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