OBD-II code · Powertrain (generic, extended)
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.
Is it safe to drive with P2547?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySignal wire shorted to reference voltage
- PossibleCAN message stuck at maximum value
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Torque Management Input A
Related codes
- P2545Torque Management Request Input Signal A Range/Performance
- P2551Torque Management Request Input Signal B High
- P2544Torque Management Request Input Signal A
- P2546Torque Management Request Input Signal A Low
- P2548Torque Management Request Input Signal B
- P2549Torque Management Request Input Signal B Range/Performance
- P254APTO Speed Selector Sensor/Switch 1 Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.