AutoCodes – Generic – C2145

C2145 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 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.

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Code Popularity 1,222

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
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Code C2145 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 - Transmitter ID 5 Error - AutoCodes.com — C2145 Code - Transmitter ID 5 Error

What does this mean?

What are the Possible Causes of the DTC C2145?

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

How to Fix the DTC C2145?

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 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 code?

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

Need Help with the Code?

Get the C2145 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C2145 Lexus — Transmitter ID 5 Error
C2145 Scion — Transmitter ID 5 Error
C2145 Toyota — Transmitter ID 5 Error

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 Code

1. What does OBDII code C2145 Transmitter ID 5 Error mean?

The code C2145 indicates a problem with the Tire Pressure Monitoring System (TPMS) transmitter ID 5, which is typically related to a faulty sensor or communication issue.

2. What are the common symptoms of OBDII code C2145?

Common symptoms of OBDII code C2145 include the TPMS warning light illuminating on the dashboard, inaccurate tire pressure readings, or a message indicating an issue with the TPMS system.

3. What are the possible causes of OBDII code C2145 Transmitter ID 5 Error?

Possible causes of OBDII code C2145 include a malfunctioning TPMS sensor, low tire pressure, sensor battery failure, sensor damage, wiring issues, or problems with the TPMS module.

4. How can I diagnose the cause of OBDII code C2145?

Diagnosing the cause of OBDII code C2145 typically involves using a TPMS scan tool to read the specific sensor ID causing the error, checking tire pressure, inspecting sensor batteries, and testing the sensor's communication with the vehicle's TPMS module.

5. Can I drive my vehicle with OBDII code C2145 present?

While you can still drive your vehicle with OBDII code C2145 present, it is recommended to address the issue promptly to ensure accurate tire pressure monitoring and potentially avoid safety risks.

6. How can I repair OBDII code C2145 Transmitter ID 5 Error?

To repair OBDII code C2145, you may need to replace the faulty TPMS sensor, address wiring or communication issues, reset the TPMS system, or recalibrate the sensors using a TPMS tool.

7. Are there any DIY tips for fixing OBDII code C2145?

DIY tips for fixing OBDII code C2145 may include checking and adjusting tire pressure, inspecting sensor batteries, ensuring proper sensor installation, and performing a TPMS system reset following the vehicle's manual.

8. How much does it typically cost to repair OBDII code C2145?

The cost of repairing OBDII code C2145 can vary depending on the specific issue, the need for sensor replacement, labor costs, and whether you choose to address the problem yourself or take it to a professional mechanic.

9. Can OBDII code C2145 be intermittent or permanent?

OBDII code C2145 can be either intermittent or permanent, with intermittent issues possibly indicating sporadic sensor communication problems while permanent errors may suggest a more consistent sensor malfunction.

10. Will OBDII code C2145 cause any damage to my vehicle if left untreated?

While OBDII code C2145 may not cause immediate damage to your vehicle, ignoring the issue can lead to inaccurate tire pressure readings, potential safety risks, and reduced fuel efficiency over time.