Skip the auto shop - Our mechanics make house calls

P2510 OBD-II Trouble Code: ECM/PCM Power Relay Sense Circuit Range/Performance

check engine light logo

P2510 trouble code definition

ECM/PCM Power Relay Sense Circuit Range/Performance

What the P2510 code means

P2510 is an OBD-II generic code for the engine control module detecting the ignition relay is open or shorted causing the relay to not come on or turn off.

What causes the P2510 code?

The ECM is detecting a signal through the ignition control relay and the relay contacts failed to close when commanded to close or the relay would not turn off when commanded to turn off.

What are the symptoms of the P2510 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory as a fault. The light will stay on unless the problem goes away for at least 3 engine key cycles.

  • The vehicle may not start or may not shut off when turning the key to start or turn off the vehicle.

  • The OBD2 scanner port will not be able to access the ECM.

How does a mechanic diagnose the P2510 code?

  • Scans for codes and documents any in the ECM to look at the freeze frame data for the failure

  • Checks ignition relay for loose or corroded pins

  • Checks ignition fuses in the main fuse box for connections

  • Installs a known good relay and tries to start the vehicle

  • Checks the connector and wiring for corrosion, causing an open in the relay circuit

Common mistakes when diagnosing the P2510 code

  • Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired

  • Failing to clear the ECM codes after the codes are fixed

  • Replacing the ECM when no communication is found when it is the ignition relay

How serious is the P2510 code?

Code P2510 is an indication that the ECM signal from the ignition relay is open or shorted and the engine may not start or shut down.

What repairs can fix the P2510 code?

Additional comments for consideration regarding the P2510 code

Code P2510 is for shorted or open ignition relay circuits and the most common fault is the ignition relay contacts either stick closed or the relay will not make contact when engaged.

Search technical bulletins for shorted harnesses on some vehicles that may cause the code and a no start or stall while driving.

Need help with a P2510 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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How Long Does a Vacuum Brake Booster Check Valve Last?
The braking system on your car requires a lot of pressure. The vacuum booster is one of the main sources of this pressure. This booster will take the pressure that...
P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222 code means The manufacturer specifies a range of acceptable voltage to be produced from the throttle position...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...


Related questions

Q: My Dodge Neon is misfiring on cylinder #4. The Check Engine Light is on, code is P0304.

A misfire can can also be caused by a vacuum leak, a wiring problem, a faulty fuel injector, a bad electrical connector, or any number of other causes. It would be best to pull the codes that are causing the...

Q: VVT (variable valve timing) Solenoid and Check Engine Light codes P0300 and P0011

Hi there. Through your research you probably discovered that there are multiple causes of a rough idle and the Check Engine Light beyond the VVT solenoid. If you replace the second bank solenoid, it may improve your issue, but...

Q: Check Engine Light is on and Autozone read: Trouble Code P0138 O2 Sensor Bank 1 Sensor 2 High Voltage

Hello. If it has a code for an oxygen sensor then that may be the issue. The thing about the oxygen sensors though is that they can give a false reading if there is something else going on with the...