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P1691: Turbo Pressure Control Solenoid Circuit Malfunction

OTHER CHRYSLER DODGE JEEP PLYMOUTH PONTIAC MAZDA OLDSMOBILE
Severity
Medium
System
Manufacturer-Specific Powertrain

What Does P1691 Mean?

P1691 is a manufacturer-specific diagnostic trouble code: Turbo Pressure Control Solenoid Circuit Malfunction. This code applies to OTHER, CHRYSLER, DODGE, JEEP, PLYMOUTH 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 P1691

Common Causes

Frequently Asked Questions

What does P1691 mean?
P1691 indicates: Turbo Pressure Control Solenoid Circuit Malfunction. The vehicle's computer has detected that the Turbo Pressure Control Solenoid is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code P1691?
You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1691 for extended periods may cause additional problems.
How much does it cost to fix P1691?
Repair costs for P1691 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 Turbo Pressure Control Solenoid wiring and connectors
  • 🔧 Replace faulty Turbo Pressure Control 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.

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