P0D19 — Battery Charging System A High Voltage Interlock Circuit Intermittent/Erratic

What Does P0D19 Mean?

P0D19 is a diagnostic trouble code indicating: Battery Charging System A High Voltage Interlock Circuit Intermittent/Erratic. 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 P0D19

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

Common Causes

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

Frequently Asked Questions

What does P0D19 mean?

P0D19 indicates: Battery Charging System A High Voltage Interlock Circuit Intermittent/Erratic. The vehicle's computer has detected that the Battery Charging System A High Voltage Interlock is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0D19?

Yes, P0D19 is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.

How much does it cost to fix P0D19?

Repair costs for P0D19 typically range from $30 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 reseat all Battery Charging System A High Voltage Interlock connectors
🔧 Repair chafed or damaged wiring in Battery Charging System A High Voltage Interlock circuit
🔧 Replace Battery Charging System A High Voltage 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.

P0D19: Battery Charging System A High Voltage Interlock Circuit Intermittent/Erratic