P0595 — Cruise Control Servo Control Circuit Low

What Does P0595 Mean?

P0595 is a diagnostic trouble code indicating: Cruise Control Servo Control Circuit Low. This code relates to the vehicle speed and idle control system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of P0595

⚠️ Check Engine Light (MIL) illuminated
⚠️ Cruise Control Servo reading at zero or minimum value
⚠️ Related system not functioning or in fail-safe mode
⚠️ Erratic idle speed

Common Causes

🔍 Open or broken wire in Cruise Control Servo circuit
🔍 Poor ground connection at Cruise Control Servo
🔍 Faulty Cruise Control Servo with no output signal
🔍 Disconnected or loose Cruise Control Servo connector
🔍 Blown fuse in related circuit

Frequently Asked Questions

What does P0595 mean?

P0595 indicates: Cruise Control Servo Control Circuit Low. The vehicle's computer has detected that the Cruise Control Servo is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P0595?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P0595 for extended periods may cause additional problems.

How much does it cost to fix P0595?

Repair costs for P0595 typically range from $20 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

🔧 Repair broken wire or restore ground in Cruise Control Servo circuit
🔧 Clean and secure Cruise Control Servo connector and ground points
🔧 Replace failed Cruise Control Servo

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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.

P0595: Cruise Control Servo Control Circuit Low