OBD-II code · Powertrain (generic, extended)
P2545 Torque Management Request Input Signal A Range/Performance
The ECM receives torque-management requests from other modules (TCM during shifts, ABS/ESC during traction events, hybrid controller). Input A is electrically intact but its values do not match the system model — out-of-range steps, jumps, or persistent values that other modules cannot confirm.
Is it safe to drive with P2545?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyRequesting module sending invalid values
- PossibleCommunication bus corruption between modules
- Less likelySensor element aged beyond calibration window
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
- P2549Torque Management Request Input Signal B Range/Performance
- P2542Low Pressure Fuel System Sensor Circuit High
- P2543Power Demand Signal Circuit
- P2544Torque Management Request Input Signal A
- P2546Torque Management Request Input Signal A Low
- P2547Torque Management Request Input Signal A High
- P2548Torque Management Request Input Signal B
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.