P1551: A Camshaft Position Actuator Control Open Circuit Bank 1
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 P1551 Mean?
P1551 is a manufacturer-specific diagnostic trouble code: A Camshaft Position Actuator Control Open Circuit Bank 1. This code applies to BMW, VOLKSWAGEN vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.
Symptoms of P1551
- β οΈ Check Engine Light (MIL) illuminated
- β οΈ Erratic A Camshaft Position Actuator Control Open readings
- β οΈ Related system operating intermittently
- β οΈ Reduced engine performance
Common Causes
- π Wiring issue in A Camshaft Position Actuator Control Open circuit (damaged, chafed, or corroded)
- π Faulty A Camshaft Position Actuator Control Open connector or terminal
- π Failed A Camshaft Position Actuator Control Open
- π ECM/PCM connection issue
Frequently Asked Questions
What does P1551 mean?
Can I drive with code P1551?
How much does it cost to fix P1551?
What To Do Next
Possible Fixes
- π§ Inspect and repair A Camshaft Position Actuator Control Open wiring and connectors
- π§ Replace faulty A Camshaft Position Actuator Control Open
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50β$150) pinpoints the root cause.