P280A — Transmission Range Sensor A Circuit Not Learned

What Does P280A Mean?

P280A is a diagnostic trouble code indicating: Transmission Range Sensor A Circuit Not Learned. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P280A

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic Transmission Range Sensor A readings
⚠️ Related system operating intermittently
⚠️ Reduced engine performance

Common Causes

🔍 Wiring issue in Transmission Range Sensor A circuit (damaged, chafed, or corroded)
🔍 Faulty Transmission Range Sensor A connector or terminal
🔍 Failed Transmission Range Sensor A
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P280A mean?

P280A indicates: Transmission Range Sensor A Circuit Not Learned. The vehicle's computer has detected that the Transmission Range Sensor A is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P280A?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P280A for extended periods may cause additional problems.

How much does it cost to fix P280A?

Repair costs for P280A typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect and repair Transmission Range Sensor A wiring and connectors
🔧 Replace faulty Transmission Range Sensor A

1
Find your vehicle above
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P280A: Transmission Range Sensor A Circuit Not Learned