C2123 Scion Code - No Signal from Transmitter ID 3 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
- C2123 Scion indicates No Signal from Transmitter ID 3 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 C2123 Scion 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 C2123 Scion?
- Faulty Tire Pressure Warning Valve and Transmitter
- Faulty Tire Pressure Warning ECU and Receiver
How to Fix the DTC C2123 Scion?
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 C2123 Scion 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 C2123 Scion Code
1. What are the common symptoms of OBDII code C2123 in a Scion?
- Common symptoms include a malfunction indicator light (MIL) illuminated on the dashboard, issues with the tire pressure monitoring system (TPMS), and the inability to receive data from Transmitter ID 3 in Main Mode.
2. What could be causing the OBDII code C2123 in my Scion?
- The code C2123 typically indicates a problem with the transmitter ID 3, which is responsible for sending tire pressure data to the TPMS control module. Possible causes include a faulty transmitter, low battery in the transmitter, or issues with the TPMS control module.
3. How can I diagnose the root cause of OBDII code C2123 in my Scion?
- To diagnose the issue, you can start by checking the battery level in the transmitter ID 3. If the battery is good, you may need to perform a TPMS relearn procedure or test the TPMS sensors using a diagnostic tool.
4. Can I repair OBDII code C2123 in my Scion myself?
- Depending on the cause of the issue, you may be able to repair it yourself. Replacing the battery in the transmitter ID 3 is a relatively simple task, but for more complex issues, it is recommended to seek assistance from a professional mechanic.
5. Is it safe to continue driving with OBDII code C2123 present in my Scion?
- While the code itself may not pose an immediate safety risk, driving with a malfunctioning TPMS system can compromise your ability to monitor tire pressures accurately. It is advised to address the issue promptly to ensure proper functionality of the TPMS.
6. How much does it typically cost to repair OBDII code C2123 in a Scion?
- The cost of repairing OBDII code C2123 can vary depending on the underlying issue. Replacing the transmitter battery may cost around $20-$50, while more complex repairs involving the TPMS control module could cost several hundred dollars.
7. Will resetting the OBDII code C2123 in my Scion make it go away permanently?
- Resetting the code may temporarily clear the MIL light, but if the underlying issue is not fixed, the code is likely to reappear. It is important to diagnose and address the root cause of the problem to prevent recurrence.
8. Can extreme weather conditions affect OBDII code C2123 in a Scion?
- Yes, extreme temperatures or weather conditions can impact the performance of the TPMS system and potentially trigger code C2123. It is important to keep the TPMS sensors and transmitters in good condition to prevent issues.
9. Are there any recalls or technical service bulletins related to OBDII code C2123 in Scion vehicles?
- It is recommended to check with your local Scion dealership or the manufacturer's website for any recalls or technical service bulletins related to OBDII code C2123. Keeping up to date with such information can help in addressing the issue effectively.
10. How long does it typically take to repair OBDII code C2123 in a Scion?
- The repair time for OBDII code C2123 can vary depending on the exact cause of the issue and the complexity of the repair. Simple fixes like replacing the transmitter battery may take less than an hour, while more involved repairs could take several hours or more.
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