P0659 OBD-II Trouble Code: Actuator Supply Voltage "A" Circuit High

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

SCHEDULE P0659 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0659 code

P0659 is a diagnostic trouble code (DTC) for "Actuator Supply Voltage "A" Circuit High". 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 P0659 DIAGNOSTIC Get a fair and transparent estimate upfront

diagnostic check engine light

P0659 code definition

The P0659 trouble code indicates an issue with the vehicle’s actuator supply voltage “A” circuit. The powertrain control module may have detected this fault. Alternately, one of the supporting control modules could have detected this fault, such as: The instrument panel control module, the antilock brake control module, the traction control module, the fuel injection control module, or any number of others.

What the P0659 code mean?

The P0658 trouble code indicates an issue or malfunction with the actuator supply voltage “A” in your vehicle, some vehicle models will require up to eight full drive cycles before symptoms or failures begin to show and/or the vehicle’s check engine light is illuminated. The P0659 code identifies the affected area of the circuit; “A”, but does not always correspond to the same component in every application.

What causes the P0659 code?

Causes of this issue most often include:

  • Shorted, open, or damaged wiring and connectors between control modules or powertrain control module input circuitry

  • Internal powertrain control module issues and malfunctions

What are the symptoms of the P0659 code?

Beyond the storage of the P0659 trouble code in the vehicle’s PCM, other potential symptoms include decreased fuel efficiency, misfire, and even lack of electrical power throughout the vehicle. More often than not, the Check Engine light will illuminate on your vehicle’s dashboard.

How does a mechanic diagnose the P0659 code?

A qualified technician will use an OBD-II scanner capable of retrieving the factory readings from the OBD-II system and displaying them for the technician to see. The information shown to the technician will include the time that the P0659 code was stored and will also show any of the other accompanying codes that may have appeared at or around the same time. After the technician views this information, the vehicle will be taken for a test drive to determine the extent of the issues.

If the P0659 code appears once again during the test drive, then there is conclusively a problem with that part of the circuit and the problem isn’t simply an intermittent issue. The technician will also test various points on the circuitry in the affected area with a voltmeter to ensure that proper amounts of current are flowing through the affected circuits.

Common mistakes when diagnosing the P0659 code:

While the main cause of the P0659 code that is accurately stored is an issue with the vehicle’s actuator supply voltage “A,” the code may have been improperly or inaccurately stored due to a malfunction within the powertrain control module system. Because of this, any qualified mechanic will attempt repairs within the actuator supply voltage system and interior wiring before considering an issue with the powertrain control module (unless, of course this code comes in simultaneously with other powertrain control module issues.)

How serious is the P0659 code?

Because the storage of the P0659 code may indicate or precede power failure throughout your vehicle, it is best that the vehicle is diagnosed and repaired by a qualified mechanic at the first notice of any symptoms, listed above.

What repairs can fix the P0659 code?

The most common repairs to address the P0659 code are as follows:

  • Repair or replace powertrain control module
  • Repair or replace supporting control module
  • Replace faulty connections between control modules
  • Replace missing or damaged wires surrounding “A” area of circuit

Additional comments for consideration regarding the P0659 code

If the cause of the P0659 trouble code in your vehicle is related to wiring, your mechanic may use an OBD-II scanner that may determine the source of the problem more efficiently and cost-effective than disconnected and testing every piece of wiring. If the cause of this code in your vehicle is related to malfunctioning wiring or power input signals, talk with your mechanic about your options before determining the best repair option for your specific vehicle model.

Need help with a P0659 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
OBD-II
P0659

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

SCHEDULE P0659 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

Peter

40 years of experience
1059 reviews
Peter
40 years of experience
wonderful. prompt, careful, patient and willing to explain anything I had questions on
2006 CHRYSLER PT CRUISER - CHECK ENGINE LIGHT IS ON - AVONDALE, ARIZONA

Theodore

13 years of experience
814 reviews
Theodore
13 years of experience
Although his scheduling app would not let him schedule for same day service, he was willing to come back after getting parts and perform necessary services.
2005 DODGE GRAND CARAVAN - CHECK ENGINE LIGHT IS ON - EVERETT, WASHINGTON

Robert

29 years of experience
179 reviews
Robert
29 years of experience
Arrived early and was done fast. Great service.
1996 FORD F-150 - CHECK ENGINE LIGHT IS ON - BOULDER CREEK, CALIFORNIA

Patrick

30 years of experience
865 reviews
Patrick
30 years of experience
We really like Patrick. He is very knowledgeable and gets the job done the first time !! We are definitely pleased with him and the warranty service that Your Mechanic honors.
1999 CHRYSLER LHS - CHECK ENGINE LIGHT IS ON - AUSTIN, TEXAS

More related articles

The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...

Related questions

Q: wont go faster 35mph

If the Check Engine Light is on this would be helpful as the codes that would be triggered by this would generate useful information relating to the problem. Without the benefit of hooking the car up to a scanner and...

Q: the car has suffocation feeling when accelerator is pressed and does not speed constantly

This sounds like a low fuel pressure problem, or an air filter and mass airflow (MAF) sensor problem. Check the fuel pressure and replace the fuel filter first to see if it helps. Next, have the system computer scanned...

Q: New battery & fuel pump. Hours later car starts and shuts down 3X in a row. Finally it starts, 48 hours later, won't start at all

Checking all the fuses was a good move. I would also want to put a scan tool on it and check for diagnostic trouble codes (DTCs) as well as seeing the data that the computer is seeing. A fuel pressure...

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