P0595 OBD-II Trouble Code: Cruise Control Servo Control Circuit Low

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0595 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0595 code

P0595 is a diagnostic trouble code (DTC) for "Cruise Control Servo Control Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0595 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light

P0595 trouble code definition

A P0595 trouble code is related to a vehicle’s cruise control servo that helps a vehicle maintain speed automatically. If the engine control unit detects voltage or resistance from the cruise control system, it will test the entire system - determining the cruise control servo control circuit is low on voltage to trigger a P0595.

What the P0595 code means

P0595 is an OBD-II generic code for a low voltage problem with the cruise control servo control circuit in that the signal being sent to the engine computer is not within the manufacturer’s parameters.

What causes the P0595 code?

A P0595 code can have more than one cause, but the most common are:

  • Faulty cruise control servo solenoid
  • Faulty cruise control switch
  • Faulty cruise control servo
  • Faulty cruise control circuit wiring
  • Faulty cruise control connectors
  • Faulty fuse

What are the symptoms of the P0595 code?

A P0595 will usually cause the cruise control to work poorly, or not at all. Some vehicles will also illuminate a cruise control light with the Check Engine Light.

How does a mechanic diagnose the P0595 code?

Your mechanic will first clear the code to see if it returns immediately. If it does, a visual inspection of the cruise control system will be next, paying close attention to the servo itself. If wiring or connectors appear damaged, they will need to be replaced. All vacuum lines to the cruise control servo will need to be inspected and repaired as well. The cruise control fuse will also need to be inspected for damage. If the problem continues, the cruise control switch and servo solenoid will need to be tested for continuity before being replaced. In some cases, the servo itself will not work and will need to be replaced.

Common mistakes when diagnosing the P0595 code

Hastily replaced components can result in unchanged results, so it’s important to test components before parts are replaced.

How serious is the P0595 code?

Because the worst that can result from a P0595 is the cruise control not working, the code isn’t very serious and your vehicle can be safely driven until repaired.

What repairs can fix the P0595 code?

The most common repairs for a P0595 are as follows:

  • Replaced cruise control servo solenoid
  • Replaced cruise control switch
  • Repaired cruise control circuit wiring
  • Replaced cruise control fuses

Additional comments for consideration regarding the P0595 code

Some vehicles have different styles of cruise control servos and it depends on whether or not your vehicle is drive-by-wire. These are controlled by the same actuator that opens and closes the throttle.

Need help with a P0595 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Check Engine Light
P0595

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0595 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,696

Rating Summary
3,372
162
42
24
96
3,372
162
42
24
96

Noe

33 years of experience
525 reviews
Noe
33 years of experience
This was the second time I've had Noe work on my cars and I couldn't recommend him highly enough. My only disappointment was with the system as I had emailed and spoken to someone about the problems I was experiencing with my car and the site flagged the work that needed to be done. However, when Noe arrived it was just for an assessment and NOT to do the work. Nope is a top mechanic but the system the company uses has serious flaws when it comes to communication with the customer.
2004 CHEVROLET TRAILBLAZER - CHECK ENGINE LIGHT IS ON - SEATTLE, WASHINGTON

Chris

19 years of experience
1240 reviews
Chris
19 years of experience
Professional, pride in his work!
2004 FORD F-150 - CHECK ENGINE LIGHT IS ON - ANAHEIM, CALIFORNIA

James

27 years of experience
331 reviews
James
27 years of experience
James is a humble and well-versed gentleman in his field. He was honest and did the services in a timely fashion. I’m happy I picked James as my mechanic!
2000 HYUNDAI ACCENT - CHECK ENGINE LIGHT IS ON - CASSELBERRY, FLORIDA

William

31 years of experience
144 reviews
William
31 years of experience
William was professional, knowledgable, and helpful. He let me know what was wrong with my car, offered me solutions and incredibly patient with me. I would highly reccomend him.
2004 KIA OPTIMA - CHECK ENGINE LIGHT IS ON - PEORIA, ARIZONA

More related articles

Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...

Related questions

Q: Had p0715 code replaced input speed sensor cut engine light off but in 2 mile it still threw code p0715 again

Hi. There could be a problem internally were the speed sensor is reading making it still throw the code. There also could be a problem with the wiring harness or connector going to the speed sensors. The wiring could have...

Q: How many crankshaft position sensors are on a 2011 GMC Terrain?

Usually there will only be one crankshaft position sensor. However, there is also a camshaft position sensor as well. It is more likely that there is multiple cam sensors than crank sensors. It is possible for engines to have anywhere...

Q: P0405 EGR Sensor A Circuit Low

Hello and thank you for your question. With having 200,000 miles on the engine, I recommend replacing the EGR and not just cleaning it. The plunger is probably has too much carbon build up making the EGR stick open when...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com