C2122 Lexus Code - No Signal from Transmitter ID 2 In Main Mode
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
- C2122 Lexus indicates No Signal from Transmitter ID 2 In Main Mode.
- 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.
Code C2122 Lexus Description
The Tire Pressure Warning Valve and Transmitters constantly send radio waves to the Tire Pressure Warning ECU and Receiver.
Under the conditions below, the Tire Pressure Warning ECU and Receiver is unable to receive the signals from the Tire Pressure Warning Valve and Transmitters, and a Diagnostic Trouble Code (DTC) is stored.
- Facilities or devices that use similar radio frequencies are located in the vicinity of the vehicle.
- Devices using similar radio frequencies are used in the vehicle.
- The ID of the tire pressure warning valve and transmitter is mistyped during registration.
- A tire, wheel, and/or transmitter from a different vehicle is installed.
What are the Possible Causes of the DTC C2122 Lexus?
- Faulty Tire Pressure Warning Valve and Transmitter
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2122 Lexus?
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 C2122 Lexus 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 C2122 Lexus code?
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Frequently Asked Questions about C2122 Lexus Code
1. What are the common symptoms of OBDII code C2122 in a Lexus?
The common symptoms include the tire pressure warning light being illuminated on the dashboard and a message indicating "No Signal from Transmitter ID 2 In Main Mode."
2. What could be the cause of OBDII code C2122 in a Lexus?
The most common cause is a malfunctioning or low battery in the tire pressure sensor attached to the wheel corresponding to Transmitter ID 2.
3. How can I diagnose the issue related to OBDII code C2122 in a Lexus?
You can diagnose the issue by using a diagnostic scan tool to read the specific code and identify which tire pressure sensor is causing the problem.
4. Can I still drive my Lexus with OBDII code C2122 present?
Yes, you can still drive the vehicle, but it is recommended to address the issue promptly to ensure proper tire pressure monitoring and safety.
5. How can I reset OBDII code C2122 in a Lexus?
You can reset the code by fixing the underlying issue with the tire pressure sensor and then using a diagnostic scan tool to clear the error code.
6. Is it possible to repair OBDII code C2122 in a Lexus without professional help?
If you have experience working with automotive electronics, you may be able to replace the malfunctioning tire pressure sensor yourself. Otherwise, it's recommended to seek professional assistance.
7. Are there any maintenance tips to prevent OBDII code C2122 from recurring?
Regularly checking and maintaining proper tire pressure, as well as replacing the tire pressure sensors as recommended by the manufacturer, can help prevent the recurrence of this code.
8. Can extreme weather conditions affect OBDII code C2122 in a Lexus?
Yes, extreme temperature changes or harsh weather conditions can impact the performance of tire pressure sensors, potentially leading to the activation of this diagnostic trouble code.
9. How long does it typically take to repair OBDII code C2122 in a Lexus?
The repair time can vary depending on the exact cause of the issue and the availability of replacement parts, but it generally takes around 1-2 hours at a repair shop.
10. Will OBDII code C2122 cause any other problems in my Lexus if left unaddressed?
Leaving this issue unresolved may lead to inaccurate tire pressure monitoring and potentially compromise safety, so it's important to address it in a timely manner.
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