C2122 2017 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 2017 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 2017 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 2017 Toyota RAV4?
- Faulty Tire Pressure Warning Valve and Transmitter
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2122 2017 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 2017 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.
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Frequently Asked Questions about C2122 2017 Toyota RAV4 Code
1. What does the OBDII code C2122 mean on a 2017 Toyota RAV4?
C2122 indicates "No Signal from Transmitter ID 2 in Main Mode," meaning the Tire Pressure Monitoring System (TPMS) isn't receiving a signal from the second tire pressure sensor.
2. What are the symptoms of code C2122 in a 2017 Toyota RAV4?
Common symptoms include the TPMS warning light illuminating on the dashboard and potentially not displaying the tire pressure for one or more tires.
3. What causes the C2122 code to trigger on a Toyota RAV4?
The code is typically caused by a faulty tire pressure sensor, a dead sensor battery, signal interference, or issues with the TPMS receiver.
4. How do I diagnose the C2122 code on my 2017 Toyota RAV4?
Use a TPMS diagnostic tool to check the functionality of each tire pressure sensor and confirm if the second sensor is transmitting a signal. Inspect for physical damage or sensor battery issues.
5. Can a dead TPMS sensor battery cause the C2122 code?
Yes, a dead TPMS sensor battery is a common reason why the transmitter stops sending signals, leading to this code.
6. How can I fix the C2122 code on my Toyota RAV4?
The most common fix is to replace the malfunctioning tire pressure sensor. After replacement, the new sensor needs to be programmed to the vehicle's TPMS system.
7. Does the C2122 code require immediate attention?
While it doesn’t affect drivability, it’s important to address the issue promptly to ensure accurate tire pressure monitoring for safety and fuel efficiency.
8. Can I reset the TPMS system to fix the C2122 code?
Resetting the TPMS system may temporarily clear the code, but if the sensor is faulty or not transmitting, the code will return until the issue is resolved.
9. How much does it cost to fix the C2122 code on a 2017 Toyota RAV4?
Replacing a tire pressure sensor typically costs between $50 and $250, depending on parts and labor. Additional costs may apply if reprogramming is required.
10. Can extreme weather cause the C2122 code to appear?
Yes, extreme temperatures can sometimes disrupt TPMS sensor signals, but if the issue persists, the sensor or system should be inspected.
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