AutoCodes – Toyota – C2126 2013 Toyota RAV4

C2126 2013 Toyota RAV4 Code - Transmitter ID not Received in Main Mode

Quick Answer

After all IDs are registered, Diagnostic Trouble Code (DTC) C2126/26 is stored in the Tire Pressure Warning ECU and Receiver and the tire pressure warning light blinks for 1 minute and then illuminates. Common causes include ID Registration Failure, Faulty Tire Pressure Warning Valve and Transmitter, 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: C2126 2013 Toyota RAV4 indicates Transmitter ID not Received in Main Mode.
Common causes: Common causes include ID Registration Failure, Faulty Tire Pressure Warning Valve and Transmitter, 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 1,018

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Mar 17, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C2126 2013 Toyota RAV4 Description

After all IDs are registered, Diagnostic Trouble Code (DTC) C2126/26 is stored in the Tire Pressure Warning ECU and Receiver and the tire pressure warning light blinks for 1 minute and then illuminates. When the Tire Pressure Warning ECU and Receiver successfully receive radio waves from all the transmitters whose IDs are stored in the ECU, DTC C2126/26 is cleared, and the tire pressure warning light goes off.

OBDII Code C2126 2013 Toyota RAV4 - Transmitter ID not Received in Main Mode - AutoCodes.com — C2126 2013 Toyota RAV4 Code - Transmitter ID not Received in Main Mode

What does this mean?

What are the Possible Causes of the DTC C2126 2013 Toyota RAV4?

ID Registration Failure
Faulty Tire Pressure Warning Valve and Transmitter
Faulty Tire Pressure Warning ECU and Receiver

How to Fix the DTC C2126 2013 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 C2126 2013 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 C2126 2013 Toyota RAV4 code?

Need more information on how to fix the C2126 2013 Toyota RAV4 code? Get Access to Factory Service Manuals

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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 C2126 2013 Toyota RAV4 Code

1. What are the common symptoms of OBDII code C2126 in a 2013 Toyota RAV4?

The common symptoms of OBDII code C2126 "Transmitter ID not Received in Main Mode" in a 2013 Toyota RAV4 may include issues with the tire pressure monitoring system (TPMS), such as a TPMS warning light on the dashboard.

2. What are the possible causes of OBDII code C2126 in a 2013 Toyota RAV4?

Possible causes of OBDII code C2126 in a 2013 Toyota RAV4 include faulty tire pressure sensors, low tire pressure, issues with the TPMS module, or electrical wiring problems.

3. How can I diagnose OBDII code C2126 in my 2013 Toyota RAV4?

Diagnosing OBDII code C2126 in a 2013 Toyota RAV4 typically involves using a TPMS diagnostic tool to check the status of each tire pressure sensor, inspecting the TPMS module for faults, and verifying the tire pressure in all tires.

4. Can I still drive my 2013 Toyota RAV4 with OBDII code C2126 present?

While it may be possible to drive your 2013 Toyota RAV4 with OBDII code C2126 present, it is not recommended as the TPMS is an important safety feature. It is best to address the issue promptly to ensure proper tire pressure monitoring.

5. How can I reset OBDII code C2126 in my 2013 Toyota RAV4?

Resetting OBDII code C2126 in a 2013 Toyota RAV4 usually involves addressing the underlying issue, such as replacing faulty tire pressure sensors or repairing wiring problems, and then using an OBDII scanner to clear the code.

6. Are there any DIY repair tips for fixing OBDII code C2126 in a 2013 Toyota RAV4?

DIY repair tips for fixing OBDII code C2126 in a 2013 Toyota RAV4 may include checking and adjusting tire pressure, inspecting the TPMS sensors for damage, ensuring proper sensor placement, and verifying the TPMS module connections.

7. Is it necessary to visit a mechanic for OBDII code C2126 in a 2013 Toyota RAV4?

While some DIY troubleshooting and repairs can be done for OBDII code C2126 in a 2013 Toyota RAV4, it is recommended to visit a mechanic or a dealership for a thorough diagnosis and professional repair to ensure the issue is properly resolved.

8. How much does it typically cost to repair OBDII code C2126 in a 2013 Toyota RAV4?

The cost to repair OBDII code C2126 in a 2013 Toyota RAV4 can vary depending on the root cause of the issue. Costs may include replacement tire pressure sensors, TPMS module repairs, labor costs, and diagnostic fees.

9. Can OBDII code C2126 in a 2013 Toyota RAV4 cause other issues if left unaddressed?

If left unaddressed, OBDII code C2126 in a 2013 Toyota RAV4 can lead to inaccurate tire pressure readings, potential safety risks due to incorrect tire pressure information, and continued TPMS malfunctions.

10. How can I prevent OBDII code C2126 from occurring in my 2013 Toyota RAV4 in the future?

To prevent OBDII code C2126 in a 2013 Toyota RAV4, it is important to regularly check tire pressure, maintain proper tire pressure levels, replace TPMS sensors as needed, and address any TPMS warning lights promptly. Regular maintenance and inspections can help prevent this issue from occurring.