C2124 Code - No Signal from Transmitter ID 4 In Main Mode
Quick Answer
The diagnostic trouble code C2124 indicates that there is no signal being received from Transmitter ID 4 in the main mode. Common causes include Faulty tire pressure sensor in the fourth position, Malfunctioning TPMS module, Wiring or communication issues between the sensor and the module. 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 indicates No Signal from Transmitter ID 4 In Main Mode.
- Common causes
- Common causes include Faulty tire pressure sensor in the fourth position, Malfunctioning TPMS module, Wiring or communication issues between the sensor and the module.
- 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 C2124 Description
The diagnostic trouble code C2124 indicates that there is no signal being received from Transmitter ID 4 in the main mode. In modern vehicles equipped with tire pressure monitoring systems (TPMS), each tire pressure sensor has a unique identifier known as a transmitter ID. This code specifically points to an issue with the communication between the TPMS module and the sensor in the fourth position.
Common Causes of C2124
- Faulty tire pressure sensor in the fourth position
- Malfunctioning TPMS module
- Wiring or communication issues between the sensor and the module
- Interference from other electronic devices disrupting the signal
- Corrosion or damage to the sensor or module connectors
Symptoms of C2124
- TPMS warning light illuminated on the dashboard
- Inaccurate tire pressure readings displayed on the instrument cluster
- Loss of data from the fourth tire pressure sensor
- Fluctuating tire pressure readings while driving
- Increased tire wear or decreased fuel efficiency
How to Fix C2124
- Begin by checking the tire pressure sensor in the fourth position for any visible damage or corrosion.
- Use a TPMS diagnostic tool to attempt to communicate with the sensor and verify if it is sending a signal.
- Inspect the wiring and connectors between the sensor and the TPMS module for any breaks or loose connections.
- If necessary, replace the faulty tire pressure sensor in the fourth position and reprogram it to sync with the TPMS module.
- Clear the diagnostic trouble code and perform a TPMS system reset to ensure proper functionality.
Cost to Fix C2124
The typical repair costs for addressing a no signal from Transmitter ID 4 in main mode issue can range from $100 to $300, depending on the specific cause of the problem and the cost of replacement parts. This estimate includes the cost of a new tire pressure sensor, labor for diagnosis and repair, and any additional materials needed for the job. It's important to note that prices can vary significantly based on factors such as location, vehicle make and model, and the shop's labor rates. It's recommended to consult with a professional mechanic for a more accurate cost estimate tailored to your specific situation.
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Code C2124 Information for Specific Makes
- C2124 Lexus — No Signal from Transmitter ID 4 In Main Mode
- C2124 Scion — No Signal from Transmitter ID 4 In Main Mode
- C2124 Subaru — Transmitter 4 No Data
- C2124 Toyota — No Signal from Transmitter ID 4 In Main Mode
Frequently Asked Questions about C2124 Code
1. What does the OBDII code C2124 mean?
C2124 indicates that there is no signal being received from Transmitter ID 4 in the main mode, often related to the tire pressure monitoring system (TPMS).
2. What are the common symptoms of code C2124?
Common symptoms include the TPMS warning light illuminating on the dashboard and inaccurate or missing tire pressure readings.
3. What causes the C2124 code to appear?
Common causes include a faulty TPMS sensor, a dead sensor battery, damaged wiring, or interference preventing the sensor signal from being received.
4. Can I drive with the C2124 code active?
Yes, but it’s not recommended to ignore it, as the TPMS system may not warn you about low tire pressure, increasing the risk of tire-related issues.
5. How is the C2124 code diagnosed?
A mechanic will use a TPMS scan tool to check each tire sensor for signal strength and functionality, along with inspecting the wiring and receiver module.
6. What repairs can fix the C2124 code?
Repairs may include replacing the faulty TPMS sensor, reprogramming the system, replacing sensor batteries, or repairing damaged wiring.
7. How much does it cost to fix a C2124 code?
Replacing a TPMS sensor typically costs $50 to $150 per sensor, while reprogramming or additional repairs may increase the cost.
8. Do I need to replace all sensors if one is faulty?
No, you only need to replace the faulty sensor, though it’s a good idea to check the condition of all sensors if they are the same age.
9. Can I reset the TPMS system to clear the C2124 code?
Resetting the TPMS system may temporarily clear the code, but the underlying issue must be fixed to prevent the code from returning.
10. How can I prevent the C2124 code in the future?
Regularly inspect your TPMS sensors, ensure proper tire maintenance, and replace sensors or batteries as they age to avoid signal issues.
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