AutoCodes – Toyota – C2171 2015 Toyota RAV4

C2171 2015 Toyota RAV4 Code - Transmitter ID not Registered

Quick Answer

The IDs of each tire pressure warning valve and transmitter are registered to the Tire Pressure Warning ECU and Receiver. Common causes include Faulty Tire Pressure Warning ECU and Receiver. 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: C2171 2015 Toyota RAV4 indicates Transmitter ID not Registered.
Common causes: Common causes include Faulty Tire Pressure Warning ECU and Receiver.
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 174

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 21, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2171 2015 Toyota RAV4 Description

The IDs of each tire pressure warning valve and transmitter are registered to the Tire Pressure Warning ECU and Receiver. When the Tire Pressure Warning ECU and Receiver detect that a transmitter ID code is not registered in the ECU, a Diagnostic Trouble Code (DTC) is output.

OBDII Code C2171 2015 Toyota RAV4 - Transmitter ID not Registered - AutoCodes.com — C2171 2015 Toyota RAV4 Code - Transmitter ID not Registered

What does this mean?

What are the Possible Causes of the DTC C2171 2015 Toyota RAV4?

Faulty Tire Pressure Warning ECU and Receiver

How to Fix the DTC C2171 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 C2171 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 C2171 2015 Toyota RAV4 code?

Need more information on how to fix the C2171 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the 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 C2171 2015 Toyota RAV4 Code

1. What does OBDII code C2171 in a 2015 Toyota RAV4 indicate?

The code C2171 in a 2015 Toyota RAV4 indicates that the Transmitter ID is not registered, often related to issues with tire pressure monitoring system (TPMS).

2. What are the common symptoms of OBDII code C2171 in a 2015 Toyota RAV4?

Common symptoms include the TPMS warning light illuminating on the dashboard, inaccurate tire pressure readings, and problems with the TPMS system functionality.

3. What are the possible causes of the Transmitter ID not Registered code in a 2015 Toyota RAV4?

Possible causes include faulty TPMS sensors, low sensor battery voltage, sensor signal interference, mismatched sensor IDs, or issues with the TPMS control module.

4. How can I diagnose the cause of OBDII code C2171 in my 2015 Toyota RAV4?

Diagnosis typically involves using a TPMS scan tool to read sensor data, checking sensor battery voltage, ensuring proper sensor installation, and verifying sensor ID registration with the vehicle.

5. Can I reset OBDII code C2171 in my 2015 Toyota RAV4 myself?

Resetting the code may temporarily turn off the warning light, but it's crucial to address the underlying TPMS issue causing the code to prevent it from reoccurring.

6. How can I repair OBDII code C2171 in my 2015 Toyota RAV4?

Repair options include replacing faulty TPMS sensors, ensuring correct sensor installation, reprogramming sensor IDs, or diagnosing and fixing any issues with the TPMS control module.

7. Is it safe to continue driving with OBDII code C2171 in my 2015 Toyota RAV4?

While the vehicle is safe to drive with this code, it's essential to address the TPMS issue promptly to ensure accurate tire pressure monitoring for safety and optimal vehicle performance.

8. How much does it typically cost to repair OBDII code C2171 in a 2015 Toyota RAV4?

Costs can vary depending on the specific repair needed, such as sensor replacement or module reprogramming. It's advisable to consult a professional mechanic for an accurate estimate.

9. Can extreme weather conditions trigger OBDII code C2171 in a 2015 Toyota RAV4?

Extreme temperatures, especially cold weather, can affect TPMS sensor performance, potentially leading to the Transmitter ID not Registered code. Monitoring tire pressure regularly is essential in such conditions.

10. Will OBDII code C2171 cause any other issues in my 2015 Toyota RAV4?

While the code itself may not cause immediate performance issues, ignoring TPMS problems can lead to inaccurate tire pressure readings, affecting safety, fuel efficiency, and overall vehicle handling.