P03F1 — B Camshaft Profile Actuator C Control Circuit/Open Bank 1

What Does P03F1 Mean?

P03F1 is a diagnostic trouble code indicating: B Camshaft Profile Actuator C Control Circuit/Open Bank 1. This code relates to the ignition system system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P03F1

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic B Camshaft Profile Actuator C readings
⚠️ Related system operating intermittently
⚠️ Engine misfires or rough running

Common Causes

🔍 Wiring issue in B Camshaft Profile Actuator C circuit (damaged, chafed, or corroded)
🔍 Faulty B Camshaft Profile Actuator C connector or terminal
🔍 Failed B Camshaft Profile Actuator C
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does P03F1 mean?

P03F1 indicates: B Camshaft Profile Actuator C Control Circuit/Open Bank 1. The vehicle's computer has detected that the B Camshaft Profile Actuator C is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P03F1?

Only short distances if absolutely necessary. P03F1 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix P03F1?

Repair costs for P03F1 typically range from $80 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 B Camshaft Profile Actuator C wiring and connectors
🔧 Replace faulty B Camshaft Profile Actuator C

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.

P03F1: B Camshaft Profile Actuator C Control Circuit/Open Bank 1