Code result
P2510
ECM/PCM Power Relay Sense Circuit Range/Performance
Moderate severity
What it means
The voltage reported on the main power relay sense line for the engine controller does not match expectation. The ECU may shut down too early or stay awake too long, draining the battery.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Main relay contacts pitted
highOne of the most commonly reported causes for this code — check this first.
Sense wiring corroded
mediumA plausible cause — test and verify before replacing parts.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Related help
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