P28BE — Cylinder 12 Ion Current Sense Circuit Low

What Does P28BE Mean?

P28BE is a diagnostic trouble code indicating: Cylinder 12 Ion Current Sense Circuit Low. This code relates to the powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P28BE

⚠️ Check Engine Light (MIL) illuminated
⚠️ Cylinder 12 Ion Current Sense reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Open or broken wire in Cylinder 12 Ion Current Sense circuit
🔍 Poor ground connection at Cylinder 12 Ion Current Sense
🔍 Faulty Cylinder 12 Ion Current Sense with no output signal
🔍 Disconnected or loose Cylinder 12 Ion Current Sense connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P28BE mean?

P28BE indicates: Cylinder 12 Ion Current Sense Circuit Low. The vehicle's computer has detected that the Cylinder 12 Ion Current Sense is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P28BE?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P28BE for extended periods may cause additional problems.

How much does it cost to fix P28BE?

Repair costs for P28BE typically range from $20 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

🔧 Repair broken wire or restore ground in Cylinder 12 Ion Current Sense circuit
🔧 Clean and secure Cylinder 12 Ion Current Sense connector and ground points
🔧 Replace failed Cylinder 12 Ion Current Sense

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.

P28BE: Cylinder 12 Ion Current Sense Circuit Low