P2512
Event Data Recorder Request Circuit/Open
The Event Data Recorder (EDR / black box) request line — used by the ECM or restraint module to trigger the EDR to capture pre-crash data — is open. The ECM cannot trigger an event capture, so any subsequent crash event would not be recorded reliably.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Open request wire or unplugged moduleCommon
- Failed input stage in the EDRPossible
- Pin pushed back out of connector bodyLess likely
Parts involved
- Event Data Recorder
- Request Wire
P2512 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.