C2125 Lexus Code - No Signal from Transmitter ID 5 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
- C2125 Lexus indicates No Signal from Transmitter ID 5 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 C2125 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 C2125 Lexus?
- Faulty Tire Pressure Warning Valve and Transmitter
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2125 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 C2125 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.
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Frequently Asked Questions about C2125 Lexus Code
1. What are the common symptoms of OBDII code C2125 in a Lexus related to "No Signal from Transmitter ID 5 In Main Mode"?
- Common symptoms include the tire pressure monitoring system (TPMS) warning light illuminating on the dashboard and the inability to receive tire pressure information for Transmitter ID 5.
2. What are the potential causes of OBDII code C2125 in a Lexus indicating "No Signal from Transmitter ID 5 In Main Mode"?
- The code can be triggered by a faulty TPMS sensor in Transmitter ID 5, low sensor battery, sensor communication issues, or problems with the TPMS module.
3. How can I diagnose the OBDII code C2125 in a Lexus for "No Signal from Transmitter ID 5 In Main Mode"?
- Diagnosis involves checking the TPMS sensor in Transmitter ID 5 for proper functioning, inspecting the sensor battery, testing communication between the sensor and the TPMS module, and scanning for related codes.
4. What steps can be taken to repair OBDII code C2125 in a Lexus related to "No Signal from Transmitter ID 5 In Main Mode"?
- Repair options may include replacing the faulty TPMS sensor in Transmitter ID 5, installing a new sensor battery, addressing communication issues, or reprogramming the TPMS module.
5. Can driving with OBDII code C2125 in a Lexus indicating "No Signal from Transmitter ID 5 In Main Mode" cause any safety concerns?
- Driving with this code may not pose immediate safety risks, but it can lead to inaccurate tire pressure readings, potentially affecting vehicle handling and tire wear over time.
6. Is it possible to reset OBDII code C2125 in a Lexus for "No Signal from Transmitter ID 5 In Main Mode" without fixing the underlying issue?
- While clearing the code may temporarily turn off the warning light, it is essential to address the root cause to ensure proper functioning of the TPMS system.
7. How can I prevent OBDII code C2125 in a Lexus related to "No Signal from Transmitter ID 5 In Main Mode" from occurring in the future?
- Regularly inspecting and maintaining the TPMS sensors, ensuring proper tire inflation, and addressing any TPMS issues promptly can help prevent the recurrence of this code.
8. Can weather conditions or road hazards trigger OBDII code C2125 in a Lexus indicating "No Signal from Transmitter ID 5 In Main Mode"?
- Extreme temperatures, tire damage from road hazards, or corrosion can potentially impact the TPMS sensor's performance and lead to the code being triggered.
9. Are there any software updates or recalls related to OBDII code C2125 in a Lexus for "No Signal from Transmitter ID 5 In Main Mode"?
- It's advisable to check with a Lexus dealership or service center for any available software updates or recalls that may address issues with the TPMS system and related codes.
10. Can aftermarket modifications to the TPMS system cause OBDII code C2125 in a Lexus indicating "No Signal from Transmitter ID 5 In Main Mode"?
- Improper installation or incompatible aftermarket TPMS components can interfere with the system's operation and potentially trigger this code.
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