OBD-II code · Powertrain (generic, extended)
P2510 ECM/PCM Power Relay Sense Circuit Range/Performance
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 with P2510?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyMain relay contacts pitted
- PossibleSense wiring corroded
- Less likelySensor element aged beyond calibration window
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Main Relay, Ecm
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.