P0A0E — High Voltage System Interlock Circuit A Intermittent

What Does P0A0E Mean?

P0A0E is a diagnostic trouble code indicating: High Voltage System Interlock Circuit A Intermittent. This code relates to the hybrid powertrain system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0A0E

⚠️ Check Engine Light (MIL) illuminated
⚠️ High Voltage System Interlock signal cutting in and out
⚠️ Related system working sometimes but not consistently
⚠️ Hybrid system warning light

Common Causes

🔍 Loose or intermittent connection at High Voltage System Interlock
🔍 Wire chafing causing intermittent contact
🔍 High Voltage System Interlock failing under heat or vibration
🔍 Corroded connector pins with partial contact

Frequently Asked Questions

What does P0A0E mean?

P0A0E indicates: High Voltage System Interlock Circuit A Intermittent. The vehicle's computer has detected that the High Voltage System Interlock is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0A0E?

Only short distances if absolutely necessary. P0A0E affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P0A0E?

Repair costs for P0A0E typically range from $30 to $500, 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 reseat all High Voltage System Interlock connectors
🔧 Repair chafed or damaged wiring in High Voltage System Interlock circuit
🔧 Replace High Voltage System Interlock if failing intermittently

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.

P0A0E: High Voltage System Interlock Circuit A Intermittent