C2172 Scion Code - Transmitter ID Not Registered In 2nd Mode
Quick Answer
The IDs of each tire pressure warning valve and transmitter are registered to the Tire Pressure Warning ECU. Common causes include Faulty Tire Pressure Warning ECU, Tire Pressure Warning ECU harness is open or shorted, Tire Pressure Warning ECU circuit poor electrical connection. 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
- C2172 Scion indicates Transmitter ID Not Registered In 2nd Mode.
- Common causes
- Common causes include Faulty Tire Pressure Warning ECU, Tire Pressure Warning ECU harness is open or shorted, Tire Pressure Warning ECU circuit poor electrical connection.
- 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 C2172 Scion Description
What are the Possible Causes of the DTC C2172 Scion?
- Faulty Tire Pressure Warning ECU
- Tire Pressure Warning ECU harness is open or shorted
- Tire Pressure Warning ECU circuit poor electrical connection
How to Fix the DTC C2172 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 C2172 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 C2172 Scion Code
1. What does OBDII code C2172 mean for a Scion vehicle?
C2172 indicates that the transmitter ID for the tire pressure monitoring system (TPMS) is not registered in the vehicle's second mode, which can affect TPMS functionality.
2. What are the common symptoms of code C2172 in a Scion?
The TPMS warning light will illuminate, and the system may not display tire pressures correctly or may fail to alert you to low tire pressure.
3. What causes the C2172 code to appear in a Scion?
This code is typically caused by unregistered or incorrectly programmed TPMS sensor IDs, sensor replacement without reprogramming, or a malfunction in the TPMS module.
4. Can a dead TPMS sensor battery trigger code C2172?
Yes, if the sensor battery is dead, the transmitter signal may fail, resulting in the code being triggered.
5. How can I fix code C2172 on my Scion?
The TPMS sensor IDs need to be registered or reprogrammed using a TPMS scan tool. If the sensors are faulty, they may need to be replaced.
6. Do I need special tools to resolve code C2172?
Yes, you’ll need a TPMS programmer or scan tool to register the transmitter IDs to the vehicle's system.
7. Can I drive my Scion with the C2172 code active?
While the vehicle is drivable, the TPMS system will not function properly, which could lead to driving on underinflated tires without warning.
8. How much does it cost to fix code C2172 in a Scion?
Costs vary but typically range from $50 to $150 for reprogramming or registering the sensors, and $50-$100 per sensor if replacement is needed.
9. Is it possible to prevent code C2172 on a Scion?
Ensure that any time a TPMS sensor is replaced or rotated, the transmitter IDs are properly registered using the correct tools.
10. Can a weak signal from a TPMS sensor cause code C2172?
Yes, if the sensor signal is weak due to interference or distance from the receiver, the system may fail to register the ID and trigger the code.
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