P27EC — Transmission Range Control A Position Sensor/Switch Circuit Range/Performance

What Does P27EC Mean?

P27EC is a diagnostic trouble code indicating: Transmission Range Control A Position Sensor/Switch Circuit Range/Performance. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P27EC

⚠️ Check Engine Light (MIL) illuminated
⚠️ Transmission Range Control A Position Sensor/Switch not operating within expected parameters
⚠️ Reduced efficiency or performance of related system
⚠️ Reduced engine performance

Common Causes

🔍 Transmission Range Control A Position Sensor/Switch degraded or contaminated
🔍 Mechanical wear or binding in Transmission Range Control A Position Sensor/Switch
🔍 Incorrect Transmission Range Control A Position Sensor/Switch installed (wrong part number)
🔍 Related system mechanical issue affecting Transmission Range Control A Position Sensor/Switch readings

Frequently Asked Questions

What does P27EC mean?

P27EC indicates: Transmission Range Control A Position Sensor/Switch Circuit Range/Performance. The vehicle's computer has detected that the Transmission Range Control A Position Sensor/Switch is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P27EC?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P27EC for extended periods may cause additional problems.

How much does it cost to fix P27EC?

Repair costs for P27EC typically range from $50 to $250, 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 clean Transmission Range Control A Position Sensor/Switch
🔧 Replace degraded Transmission Range Control A Position Sensor/Switch
🔧 Check for related mechanical issues affecting readings

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.

P27EC: Transmission Range Control A Position Sensor/Switch Circuit Range/Performance