P2547
Torque Management Request Input Signal A High
Torque management input A reads stuck high — analog short to reference voltage or message stuck at maximum value. The ECM rejects the request to avoid running unintended high-torque commands.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Signal wire shorted to reference voltageCommon
- CAN message stuck at maximum valuePossible
Parts involved
- Torque Management Input A
P2547 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.