P0E73 — Control Pilot Signal High Frequency

What Does P0E73 Mean?

P0E73 is a diagnostic trouble code indicating: Control Pilot Signal High Frequency. This code relates to the vehicle systems system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0E73

⚠️ Check Engine Light (MIL) illuminated
⚠️ Abnormal signal from Control Pilot
⚠️ Related system may operate erratically
⚠️ System warning light illuminated

Common Causes

🔍 Control Pilot producing abnormal signal
🔍 Electromagnetic interference affecting Control Pilot signal
🔍 Wiring issue distorting Control Pilot signal

Frequently Asked Questions

What does P0E73 mean?

P0E73 indicates: Control Pilot Signal High Frequency. The vehicle's computer has detected that the Control Pilot is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0E73?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P0E73 for extended periods may cause additional problems.

How much does it cost to fix P0E73?

Repair costs for P0E73 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 Control Pilot and related wiring
🔧 Replace faulty Control Pilot

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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.

P0E73: Control Pilot Signal High Frequency