P280A Code - Transmission Range Sensor 'A' Circuit Not Learned
Quick Answer
The Engine Control Module (ECM) monitors the Transmission Range Sensor Circuit. Common causes include Faulty Transmission Range Sensor, Transmission Range Sensor harness is open or shorted, Transmission Range Sensor 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
- P280A indicates Transmission Range Sensor 'A' Circuit Not Learned.
- Common causes
- Common causes include Faulty Transmission Range Sensor, Transmission Range Sensor harness is open or shorted, Transmission Range Sensor 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 P280A Description
What are the Possible Causes of the DTC P280A?
- Faulty Transmission Range Sensor
- Transmission Range Sensor harness is open or shorted
- Transmission Range Sensor circuit poor electrical connection
How to Fix the DTC P280A?
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 P280A 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 P280A code?
Need more information on how to fix the P280A code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P280A code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P280A Code
1. What does the OBDII code P280A mean?
P280A indicates that the Transmission Range Sensor 'A' circuit has not been properly learned or calibrated by the vehicle's powertrain control module (PCM).
2. What are the common symptoms of a P280A code?
Symptoms include difficulty shifting gears, transmission slipping, erratic or harsh shifting, and the illumination of the check engine light.
3. What causes the P280A code to appear?
Common causes include a faulty transmission range sensor, wiring or connector issues, a failed PCM, or incorrect calibration or programming of the sensor.
4. Can I drive my car with a P280A code?
While the vehicle may still be drivable, continued operation could result in further transmission damage or unsafe driving conditions. It’s best to address the issue promptly.
5. How is the P280A code diagnosed?
A technician will use a scan tool to confirm the code, inspect the transmission range sensor and its wiring, check for proper calibration, and perform any necessary tests on the PCM.
6. What repairs can fix the P280A code?
Repairs may include replacing the transmission range sensor, repairing or replacing damaged wiring, recalibrating the sensor, or reprogramming/replacing the PCM.
7. Is a P280A code specific to any vehicle make or model?
No, the P280A code is a generic OBDII code and can appear in various makes and models with slight variations in symptoms and repair procedures.
8. Can a low transmission fluid level cause the P280A code?
Although unlikely, low transmission fluid can cause shifting issues that mimic the symptoms of a P280A code. Checking the fluid level is always a good starting point.
9. How much does it cost to fix a P280A code?
The cost varies depending on the root cause. Replacing a transmission range sensor might cost $150–$400, while PCM repairs or reprogramming could cost more.
10. Can I clear the P280A code without fixing the problem?
Clearing the code without addressing the underlying issue may result in the code returning and could lead to further transmission problems.
Discuss the causes and fixes for P280A OBDII Code
Code P280A 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.
