C2321 Subaru Code - Transmitter 1 Function Code Abnormal
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
- C2321 Subaru indicates Transmitter 1 Function Code Abnormal.
- 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 C2321 Subaru Description
What are the Possible Causes of the DTC C2321 Subaru?
- Tire pressure not to factory specifications
- Faulty Tire Pressure Transmitter
- Faulty Tire Pressure Monitor System (TPMS) Control Module
How to Fix the DTC C2321 Subaru?
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 C2321 Subaru 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 C2321 Subaru code?
Need more information on how to fix the C2321 Subaru code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C2321 Subaru code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C2321 Subaru Code
1. What are the common symptoms of OBDII code C2321 in a Subaru?
- Common symptoms include issues with the remote keyless entry system, difficulty starting the vehicle, and the inability to lock or unlock the doors using the key fob.
2. What can cause the OBDII code C2321 in a Subaru?
- The code C2321 typically indicates a malfunction in the transmitter 1 function of the keyless entry system, which can be caused by a faulty key fob, damaged wiring, or a problem with the receiver unit in the vehicle.
3. How can I diagnose the OBDII code C2321 in my Subaru?
- To diagnose the issue, you can start by checking the battery in the key fob, ensuring it is properly programmed to the vehicle, and inspecting the wiring connections for any damage or corrosion.
4. Can I continue driving my Subaru with the OBDII code C2321 present?
- While the vehicle may still be operational with the code present, it is recommended to address the issue promptly to avoid potential inconvenience or security risks associated with a malfunctioning keyless entry system.
5. What are some repair tips for resolving OBDII code C2321 in a Subaru?
- Repair tips may include replacing the battery in the key fob, reprogramming the key fob to the vehicle, checking and repairing any damaged wiring, or replacing the receiver unit if necessary.
6. Is it possible to reset the OBDII code C2321 in a Subaru without repair?
- Resetting the code without addressing the underlying issue may temporarily clear the code, but it is unlikely to resolve the malfunction in the keyless entry system. It is recommended to diagnose and repair the root cause of the problem.
7. Can a DIY enthusiast fix the OBDII code C2321 in a Subaru?
- Depending on the level of expertise and access to tools, some DIY enthusiasts may be able to address the issue by following repair guides or tutorials specific to the Subaru model and the keyless entry system.
8. Is the OBDII code C2321 a common issue in Subaru vehicles?
- While the code C2321 related to transmitter 1 function abnormality is not as common as some other OBDII codes, it can occur in Subaru vehicles equipped with keyless entry systems, especially in older models or those with high mileage.
9. What are the potential safety implications of OBDII code C2321 in a Subaru?
- The safety implications of the code C2321 are mainly related to the compromised security of the vehicle if the keyless entry system is not functioning correctly, leading to potential unauthorized access or theft.
10. How much does it typically cost to repair OBDII code C2321 in a Subaru at a dealership or repair shop?
- Repair costs for addressing the OBDII code C2321 can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services, which can range from a few hundred to over a thousand dollars.
Discuss the causes and fixes for C2321 Subaru OBDII Code
Code C2321 Subaru comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
