P055E — Oxygen Sensor Control Module System Voltage

What Does P055E Mean?

P055E is a diagnostic trouble code indicating: Oxygen Sensor Control Module System Voltage. This code relates to the vehicle speed and idle control system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P055E

⚠️ Check Engine Light (MIL) illuminated
⚠️ Oxygen Sensor Control Module System Voltage not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ Erratic idle speed

Common Causes

🔍 Faulty Oxygen Sensor Control Module System Voltage
🔍 Wiring or connector issue in Oxygen Sensor Control Module System Voltage circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does P055E mean?

P055E indicates: Oxygen Sensor Control Module System Voltage. The vehicle's computer has detected that the Oxygen Sensor Control Module System Voltage is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P055E?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P055E for extended periods may cause additional problems.

How much does it cost to fix P055E?

Repair costs for P055E 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 Oxygen Sensor Control Module System Voltage and related wiring
🔧 Replace faulty Oxygen Sensor Control Module System Voltage

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.

P055E: Oxygen Sensor Control Module System Voltage