P06E3: Cylinder 12 Glow Plug Control Circuit High
Severity
Medium
System
Computer and Output Circuits
What Does P06E3 Mean?
P06E3 is a diagnostic trouble code indicating: Cylinder 12 Glow Plug Control Circuit High. This code relates to the computer and output circuits system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Symptoms of P06E3
- ⚠️ Check Engine Light (MIL) illuminated
- ⚠️ Cylinder 12 Glow Plug reading stuck at maximum value
- ⚠️ Related system operating erratically or in default mode
- ⚠️ Multiple system malfunctions
Common Causes
- 🔍 Short to voltage in Cylinder 12 Glow Plug wiring harness
- 🔍 Corroded or water-damaged Cylinder 12 Glow Plug connector
- 🔍 Faulty Cylinder 12 Glow Plug outputting maximum voltage
- 🔍 Damaged wiring rubbing against metal components
- 🔍 ECM/PCM internal fault (rare)
Frequently Asked Questions
What does P06E3 mean?
P06E3 indicates: Cylinder 12 Glow Plug Control Circuit High. The vehicle's computer has detected that the Cylinder 12 Glow Plug is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code P06E3?
You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P06E3 for extended periods may cause additional problems.
How much does it cost to fix P06E3?
Repair costs for P06E3 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
- 🔧 Inspect and repair Cylinder 12 Glow Plug wiring for short to voltage
- 🔧 Clean or replace corroded Cylinder 12 Glow Plug connector
- 🔧 Replace faulty Cylinder 12 Glow Plug
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.
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