C2122 2018 Toyota RAV4 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 2018 Toyota RAV4 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 2018 Toyota RAV4 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 2018 Toyota RAV4?
- Faulty Tire Pressure Warning Valve and Transmitter
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2122 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 C2122 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 C2122 2018 Toyota RAV4 code?
Need more information on how to fix the C2122 2018 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about C2122 2018 Toyota RAV4 Code
1. What are the common symptoms of OBDII code C2122 in a 2018 Toyota RAV4?
The common symptoms include issues with tire pressure monitoring system (TPMS) functionality, warning lights on the dashboard related to tire pressure, and difficulty in displaying tire pressure readings.
2. What does the OBDII code C2122 "No Signal from Transmitter ID 2 In Main Mode" indicate in a 2018 Toyota RAV4?
This code indicates that the TPMS system is not receiving a signal from the transmitter ID 2 in the main operating mode, which can lead to inaccurate tire pressure monitoring.
3. What are the possible causes of OBDII code C2122 in a 2018 Toyota RAV4?
Possible causes include a malfunctioning tire pressure sensor, low sensor battery, sensor signal interference, damaged wiring, or issues with the TPMS control module.
4. How can I diagnose the OBDII code C2122 in my 2018 Toyota RAV4?
Diagnosing this code usually involves checking the tire pressure sensors, inspecting the wiring and connections, testing the sensor batteries, and using a TPMS tool to analyze the system's data.
5. Is it safe to drive my 2018 Toyota RAV4 with the OBDII code C2122 illuminated?
It is generally safe to drive your vehicle with this code, but it is important to manually check your tire pressures regularly to ensure they are at the recommended levels.
6. Can I reset the OBDII code C2122 in my 2018 Toyota RAV4 myself?
You can attempt to reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, it is recommended to diagnose and fix the underlying issue to prevent the code from reappearing.
7. How much does it typically cost to repair OBDII code C2122 in a 2018 Toyota RAV4?
The cost of repair can vary depending on the specific cause of the issue. It may involve replacing a faulty sensor, repairing wiring, or addressing other related components, so it's best to consult a professional for an accurate estimate.
8. Are there any DIY tips for addressing OBDII code C2122 in a 2018 Toyota RAV4?
You can start by checking the tire pressures manually, inspecting the sensor batteries, and visually examining the wiring and connections for any obvious issues. If you're comfortable with basic car repairs, you may attempt sensor replacement or wiring repairs.
9. Will OBDII code C2122 cause my 2018 Toyota RAV4 to fail an emissions test?
This particular code is related to the tire pressure monitoring system and should not directly cause your vehicle to fail an emissions test. However, it's essential to address the issue to ensure proper tire pressure monitoring functionality.
10. How often should I check my tire pressures in my 2018 Toyota RAV4 to prevent OBDII code C2122 from occurring?
It is recommended to check your tire pressures at least once a month and before long trips to maintain proper tire health and prevent TPMS issues like code C2122 from arising.
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