AutoCodes – Toyota – C2145 2018 Toyota RAV4

C2145 2018 Toyota RAV4 Code - Transmitter ID 5 Error

Quick Answer

The Tire Pressure Warning Valve and Transmitters that are installed in the tire and wheel assemblies measure the tire pressures. Common causes include 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: C2145 2018 Toyota RAV4 indicates Transmitter ID 5 Error.
Common causes: Common causes include 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 369

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 17, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C2145 2018 Toyota RAV4 Description

The Tire Pressure Warning Valve and Transmitters that are installed in the tire and wheel assemblies measure the tire pressures. The measured values are transmitted to the Tire Pressure Warning ECU and Receiver in the vehicle as radio waves. The ECU compares the measured air pressure values with the air pressure threshold. When the measured air pressure value is less than this threshold, the warning light in the combination meter assembly illuminates.
When the internal circuit of a Tire Pressure Warning Valve and Transmitter is malfunctioning, this Diagnostic Trouble Code (DTC) is output.

OBDII Code C2145 2018 Toyota RAV4 - Transmitter ID 5 Error - AutoCodes.com — C2145 2018 Toyota RAV4 Code - Transmitter ID 5 Error

What does this mean?

What are the Possible Causes of the DTC C2145 2018 Toyota RAV4?

Faulty Tire Pressure Warning Valve and Transmitter
Faulty Tire Pressure Warning ECU and Receiver

How to Fix the DTC C2145 2018 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 C2145 2018 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 C2145 2018 Toyota RAV4 code?

Need more information on how to fix the C2145 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C2145 2018 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 C2145 2018 Toyota RAV4 Code

1. What does the OBDII code C2145 mean on a 2018 Toyota RAV4?

C2145 indicates a "Transmitter ID 5 Error," which typically relates to an issue with the Tire Pressure Monitoring System (TPMS), specifically with the fifth tire sensor or its communication.

2. What are the symptoms of the C2145 code on a 2018 Toyota RAV4?

Common symptoms include the TPMS warning light illuminating on the dashboard and potential difficulty detecting one or more tire pressure sensors.

3. What causes the C2145 code to appear on a 2018 Toyota RAV4?

This code is usually caused by a malfunctioning TPMS sensor, incorrect sensor registration, interference in wireless communication, or a dead sensor battery.

4. How can I diagnose the C2145 code on my 2018 Toyota RAV4?

Use a TPMS scan tool to check the status of each tire sensor and verify that all sensor IDs are correctly programmed into the vehicle's ECU.

5. Can a low tire pressure cause the C2145 code?

No, low tire pressure will not trigger this specific code. However, it may cause the TPMS warning light to turn on for other reasons.

6. How do I fix the C2145 code on a 2018 Toyota RAV4?

The issue can often be resolved by re-registering the TPMS sensor IDs, replacing a faulty sensor, or ensuring proper communication between the sensors and the ECU.

7. Can a faulty TPMS sensor battery trigger the C2145 code?

Yes, a dead or weak TPMS sensor battery can lead to communication failures and cause the C2145 code.

8. Do I need to replace all TPMS sensors if one fails?

No, you only need to replace the specific sensor causing the issue. However, if the sensors are old, it may be cost-effective to replace them all at once.

9. Can a C2145 code affect vehicle performance?

No, this code does not impact vehicle performance, but it can compromise the effectiveness of the TPMS, which is important for safety.

10. Is it safe to drive with the C2145 code on a 2018 Toyota RAV4?

While the vehicle is safe to drive, you should address the issue promptly to ensure your TPMS functions correctly and provides accurate tire pressure monitoring.