C2124 2017 Toyota RAV4 Code - No Signal from Transmitter ID 4 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
- C2124 2017 Toyota RAV4 indicates No Signal from Transmitter ID 4 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 C2124 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 C2124 2017 Toyota RAV4?
- Faulty Tire Pressure Warning Valve and Transmitter
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2124 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 C2124 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 C2124 2017 Toyota RAV4 Code
1. What does OBDII code C2124 mean on a 2017 Toyota RAV4?
C2124 indicates "No Signal from Transmitter ID 4 in Main Mode," which relates to the vehicle's tire pressure monitoring system (TPMS).
2. What are the symptoms of code C2124 in a 2017 Toyota RAV4?
Common symptoms include the TPMS warning light illuminating on the dashboard and potentially inaccurate or missing tire pressure readings.
3. What causes the C2124 code to trigger?
The most common causes are a faulty or dead TPMS sensor in one of the tires, electrical interference, or an issue with the TPMS receiver.
4. How do I know which tire corresponds to Transmitter ID 4?
The specific tire location associated with Transmitter ID 4 depends on how the sensors were programmed and installed. A diagnostic scan tool can help identify the exact location.
5. Can a dead TPMS sensor battery cause code C2124?
Yes, a dead or weak TPMS sensor battery is a common cause of this code, as it prevents the sensor from transmitting signals.
6. How can I fix the C2124 code on my 2017 Toyota RAV4?
Check and replace the faulty TPMS sensor, ensure proper programming of the sensors, and clear the code using an OBDII scanner.
7. Do I need to reprogram the TPMS sensors after replacing one?
Yes, after replacing a TPMS sensor, it must be reprogrammed or registered to the vehicle's system using a TPMS tool.
8. Can driving on a flat or low-pressure tire trigger code C2124?
Not directly, but driving on low pressure can damage the TPMS sensor, potentially leading to a loss of signal and triggering the code.
9. Is code C2124 dangerous to ignore?
While it does not immediately affect drivability, ignoring it can result in unmonitored tire pressure, increasing the risk of tire failure.
10. Can I reset the TPMS system to clear code C2124?
In some cases, performing a TPMS reset using the button in the vehicle or an OBDII scanner might clear the code, but this won’t fix underlying sensor issues.
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