P0617 OBD-II Trouble Code: Starter Relay Circuit High

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0617 code

P0617 is a diagnostic trouble code (DTC) for "Starter Relay 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 $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 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 $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE P0617 DIAGNOSTIC Get a fair and transparent estimate upfront

P0617 code definition

The P0617 code indicates that there has been an abnormally high voltage reading detected by the PCM from the starter relay circuit.

What the P0617 code means

The starter relay is part of the system that activates and engages the starter motor. Vehicles that utilize starter relays also require signals from the battery, ignition switch, and other components, to operate properly. The starter relay collects these signals, and sends an output signal to the PCM. If the PCM receives a signal from the starter relay circuit that is higher than the manufacturer’s specifications for the current drive conditions, the code P0617 will be stored.

What causes the P0617 code?

The most likely cause of a high voltage reading in the starter relay circuit is a faulty ignition switch. However, because the starter relay relies on several components to accurately determine voltage output, there could be any number of other causes, including:

  • Blown fuses
  • Bad starter relay
  • Circuits which are shorted or open
  • Defective battery
  • Faulty battery cables or cable ends
  • Defective starter solenoid or starter motor
  • Poor electrical connection in the starter relay circuit
  • Open or shorted starter relay harness
  • Faulty TCM, in rare cases

What are the symptoms of the P0617 code?

The symptoms related to the P0617 code could be almost anything, from an illuminated Check Engine lamp, to a complete no-start condition.

How does a mechanic diagnose the P0617 code?

After verifying the P0617 code with an OBD-II code, technicians should begin with a visual inspection of all electrical components, including wiring and connectors. Anything that is damaged, corroded, loose, shorted, open, or disconnected should be repaired or replaced. Always be sure to clear the code and test the system after each potential repair is attempted, to be sure that no unnecessary repairs are performed.

If repairing the electrical components did not stop the code from reappearing in the PCM, the next step is to inspect the battery cables and battery. If the battery is fully charged, perform a voltage test on each of the components related to the issue, checking the readings against the manufacturer’s specifications until the faulty component is discovered.

Common mistakes when diagnosing the P0617 code

Most often, technicians report that replacing the starter motor without performing a thorough diagnosis will cause the most issues later on. It’s far more likely that the starter motor is operating correctly, and that the electrical components are to blame.

How serious is the P0617 code?

This trouble code represents a very serious issue that should be repaired immediately. If there is an issue within the system that starts the vehicle, it will eventually lead to an inoperable state, even if the vehicle is currently able to start.

What repairs can fix the P0617 code?

There are many ways that a technician can address a P0617 code detection. They include:

  • Replacing a faulty ignition switch
  • Replacing blown fuses
  • Replacing a bad starter relay
  • Repairing any circuits which are shorted or open
  • Replacing a defective battery
  • Replacing faulty battery cables or cable ends
  • Replacing defective starter solenoids or starter motors
  • Repairing a poor electrical connection in the starter relay circuit
  • Replacing or repairing open or shorted starter relay harness
  • Replacing a faulty TCM, in rare cases

Need help with a P0617 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.

Check Engine Light
trouble codes
P0617

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0617 code.

SCHEDULE P0617 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


More related articles

Related questions

Slight knocking while driving
If your car has been leaking oil for an extended period and you hear knocking, it's possible that an engine bearing has either spun, or is about to spin in its bore. After fixing the oil leak (https://www.yourmechanic.com/services/oil-fluid-leak-inspection), I would...
Hi, I just wanna ask , cause my husband bought a car from a dealer. He change oil on it . Suddenly when he go drive test the check
Hello, thank you for writing in. With the check engine light and other warning lights on, the best thing to do is take the vehicle back to the dealership and speak with them. If dealing with the dealership is not...
08' Ford Fusion shifter stuck in park, flashing check engine light, sounds like air bubble in engine or sputtering when given gas
Hello, thank you for writing in. You are likely dealing with multiple problems at once, and only further testing will tell. The first step, due to the check engine light, is to scan the vehicle for diagnostic codes. Use these...

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 (855) 347-2779 · hi@yourmechanic.com