U12AA Acura Code - Lost Communication With Shifter
Quick Answer
The Controller Area Network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using F-CAN A and B signal lines. Common causes include Faulty SBW Shifter Control Module, SBW Shifter Control Module harness is open or shorted, SBW Shifter Control Module 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
- U12AA Acura indicates Lost Communication With Shifter.
- Common causes
- Common causes include Faulty SBW Shifter Control Module, SBW Shifter Control Module harness is open or shorted, SBW Shifter Control Module 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 U12AA Acura Description
What are the Possible Causes of the DTC U12AA Acura?
- Faulty SBW Shifter Control Module
- SBW Shifter Control Module harness is open or shorted
- SBW Shifter Control Module circuit poor electrical connection
- Faulty Transmission Control Module (TCM)
How to Fix the DTC U12AA Acura?
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 U12AA Acura 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 U12AA Acura Code
1. What are the common symptoms of the OBDII code U12AA in an Acura related to lost communication with the shifter?
- Common symptoms include the inability to shift gears, the gear indicator not displaying correctly, and warning lights on the dashboard related to the transmission.
2. What are the possible causes of the U12AA code indicating lost communication with the shifter in an Acura?
- Potential causes include a faulty shifter position switch, damaged wiring or connectors in the shifter circuit, or a communication error between the shifter module and the vehicle's computer.
3. How can I diagnose the U12AA code in my Acura if I suspect a communication issue with the shifter?
- To diagnose the issue, you can use a diagnostic scanner to read the code, check the wiring and connectors for damage, and test the shifter position switch for proper functionality.
4. Are there any DIY repair tips for resolving the U12AA code related to lost communication with the shifter in an Acura?
- DIY repair tips may include checking and repairing any damaged wiring or connectors, resetting the vehicle's computer by disconnecting the battery, or replacing the faulty shifter position switch.
5. Can the U12AA code in an Acura indicating lost communication with the shifter be fixed without professional help?
- Some simple fixes, such as checking and repairing wiring connections, may be possible for DIY enthusiasts. However, complex issues may require professional diagnosis and repair.
6. Is it safe to continue driving my Acura with the U12AA code showing lost communication with the shifter?
- It is not recommended to drive your Acura with the U12AA code, as it can lead to potential transmission issues and safety concerns due to the loss of communication with the shifter.
7. How much does it typically cost to repair the U12AA code related to lost communication with the shifter in an Acura?
- Repair costs can vary based on the specific issue causing the code, but expenses may include parts replacement, labor costs, and diagnostic fees, ranging from a few hundred to over a thousand dollars.
8. Can a software update or reprogramming fix the U12AA code indicating lost communication with the shifter in my Acura?
- In some cases, a software update or reprogramming of the vehicle's computer may resolve communication issues and clear the U12AA code related to the shifter.
9. Are there any recalls or technical service bulletins related to the U12AA code affecting Acura vehicles?
- It is recommended to check with your local Acura dealership or visit the manufacturer's website to see if there are any recalls or technical service bulletins related to the U12AA code and communication issues with the shifter.
10. How can I prevent the U12AA code indicating lost communication with the shifter from occurring in my Acura in the future?
- Regular maintenance, timely repairs of any wiring or connector issues, and prompt attention to warning lights or error codes can help prevent the recurrence of the U12AA code and maintain the proper functioning of the shifter system in your Acura.
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