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P1550: Idle Speed Control Valve Closing Solenoid Control Circuit Electrical

BMW FORD LINCOLN MERCURY OTHER VOLKSWAGEN NISSAN
Severity
Medium
System
Manufacturer-Specific Powertrain

What Does P1550 Mean?

P1550 is a manufacturer-specific diagnostic trouble code: Idle Speed Control Valve Closing Solenoid Control Circuit Electrical. This code applies to BMW, FORD, LINCOLN, MERCURY, OTHER 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 P1550

Common Causes

Frequently Asked Questions

What does P1550 mean?
P1550 indicates: Idle Speed Control Valve Closing Solenoid Control Circuit Electrical. The vehicle's computer has detected that the Idle Speed Control Valve Closing Solenoid is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code P1550?
You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1550 for extended periods may cause additional problems.
How much does it cost to fix P1550?
Repair costs for P1550 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 Idle Speed Control Valve Closing Solenoid wiring and connectors
  • 🔧 Replace faulty Idle Speed Control Valve Closing Solenoid
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

P1500 Fuel Pump Relay Electrical Circuit Malfunction P1501 Programmable Speedometer & Odometer Module Vehicle Speed Sensor Intermittent Circuit Failure P1502 Idle Speed Control Valve Closing Solenoid Control Circuit Signal High Or Low P1503 Idle Speed Control Valve Closing Solenoid Control Circuit Signal Low P1504 Idle Speed Control Valve Closing Solenoid Control Open Circuit P1505 Idle Speed Control Valve Closing Solenoid Control Circuit Electrical P1506 Idle Speed Control Valve Open Solenoid Control Circuit Signal High P1507 Idle Speed Control Valve Open Solenoid Control Circuit Signal Low P1508 Idle Speed Control Valve Opening Solenoid Control Open Circuit P1509 Idle Speed Control Valve Opening Solenoid Control Circuit Electrical