P2C73: Active Grille Air Shutter C Stuck On

Severity

High

System

Vehicle Systems

Last reviewed: Jan 1, 0001 Last updated: Jan 1, 0001

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What Does P2C73 Mean?

P2C73 is a diagnostic trouble code indicating: Active Grille Air Shutter C Stuck On. 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 P2C73

⚠️ Check Engine Light (MIL) illuminated
⚠️ Active Grille Air Shutter C remains active when it should be off
⚠️ Related system running continuously
⚠️ System warning light illuminated

Common Causes

🔍 Active Grille Air Shutter C mechanically stuck in active position
🔍 Short circuit holding Active Grille Air Shutter C control on
🔍 Faulty Active Grille Air Shutter C driver circuit in ECM/PCM

Frequently Asked Questions

What does P2C73 mean?

P2C73 indicates: Active Grille Air Shutter C Stuck On. The vehicle's computer has detected that the Active Grille Air Shutter C is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P2C73?

Only short distances if absolutely necessary. P2C73 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P2C73?

Repair costs for P2C73 typically range from $50 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 Active Grille Air Shutter C for mechanical binding or debris
🔧 Replace stuck Active Grille Air Shutter C
🔧 Check Active Grille Air Shutter C control circuit for short

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.