C2422 Code - Transmitter 2 Battery Voltage Decrease
Quick Answer
The Tire Pressure Monitor (TPM) system checks the tire pressures of all 4 road wheels when the vehicle is driven at speeds above 25 mph (40 km/h), and warns in the event of a loss of pressure by means of a low tire pressure warning light. Common causes include Tire pressure not to factory specifications, Faulty Tire Pressure Transmitter, Faulty Tire Pressure Monitor System (TPMS) Control 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
- C2422 indicates Transmitter 2 Battery Voltage Decrease.
- Common causes
- Common causes include Tire pressure not to factory specifications, Faulty Tire Pressure Transmitter, Faulty Tire Pressure Monitor System (TPMS) Control 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.
Code C2422 Description
What are the Possible Causes of the DTC C2422?
- Tire pressure not to factory specifications
- Faulty Tire Pressure Transmitter
- Faulty Tire Pressure Monitor System (TPMS) Control Module
How to Fix the DTC C2422?
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.
Code Tech Notes
If the warning light is still on after adjusting tire pressure, check for a damaged tire and repair as necessary. If warning light blinks 25 times and then illuminates, and there is not a tire without a tire pressure sensor installed, there is a malfunction in the TPM system. See appropriate manufacturer service information.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C2422 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.
Need more information about the C2422 code?
Need more information on how to fix the C2422 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C2422 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C2422 Subaru — Transmitter 2 Battery Voltage Decrease
Frequently Asked Questions about C2422 Code
1. What are the common symptoms of OBDII code C2422 (Transmitter 2 Battery Voltage Decrease)?
- Common symptoms include issues with the keyless entry system, such as difficulty locking or unlocking the vehicle using the remote.
2. What are the possible causes of OBDII code C2422 (Transmitter 2 Battery Voltage Decrease)?
- Possible causes may include a weak or failing key fob battery, a malfunctioning key fob transmitter, or a problem with the vehicle's receiver unit.
3. How can I diagnose the cause of OBDII code C2422 (Transmitter 2 Battery Voltage Decrease)?
- You can start by replacing the battery in the key fob to see if that resolves the issue. If not, you may need to have the key fob and vehicle's receiver unit tested for proper functionality.
4. Can OBDII code C2422 (Transmitter 2 Battery Voltage Decrease) cause any other problems with my vehicle?
- While this code itself may not directly impact the vehicle's performance, it can lead to inconvenience and potential security issues if the keyless entry system is not functioning properly.
5. How can I repair OBDII code C2422 (Transmitter 2 Battery Voltage Decrease)?
- Repair options may include replacing the key fob battery, reprogramming the key fob, or replacing the key fob or receiver unit if necessary.
6. Is it safe to continue driving with OBDII code C2422 (Transmitter 2 Battery Voltage Decrease)?
- It is generally safe to continue driving with this code, but you may experience difficulties with the keyless entry system until the issue is resolved.
7. Will resetting the OBDII code C2422 (Transmitter 2 Battery Voltage Decrease) make the problem go away?
- Resetting the code may temporarily clear the error message, but if the underlying issue is not addressed, the code is likely to reappear.
8. Can extreme weather conditions affect OBDII code C2422 (Transmitter 2 Battery Voltage Decrease)?
- Extreme cold or heat can impact the performance of key fob batteries, potentially leading to issues with the keyless entry system and triggering this code.
9. How do I prevent OBDII code C2422 (Transmitter 2 Battery Voltage Decrease) from occurring in the future?
- Regularly checking and replacing key fob batteries, keeping the key fob away from water or extreme temperatures, and ensuring proper maintenance of the keyless entry system can help prevent this issue.
10. Can a DIY enthusiast fix OBDII code C2422 (Transmitter 2 Battery Voltage Decrease) on their own?
- Depending on the specific cause of the issue, some DIY enthusiasts may be able to address OBDII code C2422 by replacing the key fob battery or reprogramming the key fob. However, more complex issues may require professional diagnosis and repair.
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