B3A30 — Active Aerodynamic Feature Control Module D Power Mode Circuit High Voltage

What Does B3A30 Mean?

B3A30 is a diagnostic trouble code indicating: Active Aerodynamic Feature Control Module D Power Mode Circuit High Voltage. 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 B3A30

⚠️ Check Engine Light (MIL) illuminated
⚠️ Active Aerodynamic Feature Control Module D Power Mode reading stuck at maximum value
⚠️ Related system operating erratically or in default mode
⚠️ System warning light illuminated

Common Causes

🔍 Short to voltage in Active Aerodynamic Feature Control Module D Power Mode wiring harness
🔍 Corroded or water-damaged Active Aerodynamic Feature Control Module D Power Mode connector
🔍 Faulty Active Aerodynamic Feature Control Module D Power Mode outputting maximum voltage
🔍 Damaged wiring rubbing against metal components
🔍 ECM/PCM internal fault (rare)

Frequently Asked Questions

What does B3A30 mean?

B3A30 indicates: Active Aerodynamic Feature Control Module D Power Mode Circuit High Voltage. The vehicle's computer has detected that the Active Aerodynamic Feature Control Module D Power Mode is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code B3A30?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with B3A30 for extended periods may cause additional problems.

How much does it cost to fix B3A30?

Repair costs for B3A30 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 Active Aerodynamic Feature Control Module D Power Mode wiring for short to voltage
🔧 Clean or replace corroded Active Aerodynamic Feature Control Module D Power Mode connector
🔧 Replace faulty Active Aerodynamic Feature Control Module D Power Mode

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.

B3A30: Active Aerodynamic Feature Control Module D Power Mode Circuit High Voltage