P258F
Torque Management Request Output Signal
Powertrain torque control
Generic OBD-II
Medium
What it means
P258F means the powertrain control module has detected a problem with the torque-management request signal it exchanges with the transmission — the signal used to briefly trim engine torque during shifts for smoothness. The result is usually rough or delayed shifting and sometimes a reduced-power limp mode, rather than an engine that won't run.
Medium
Can I keep driving? Usually drivable, but you may notice harsh or delayed shifts and reduced power or a limp-home mode until it's fixed.
Common symptoms
What you'll notice
- Check-engine light on
- Harsh, delayed, or erratic gear shifts
- Reduced engine power or a limp-home mode
- Transmission may not shift smoothly during acceleration
Common causes
Most likely first
- Fault in the wiring or connectors carrying the torque-management request signal between the PCM and transmission control moduleLikely
- Poor ground or corroded/loose connector on the signal circuitCommon
- Internal fault in the PCM or transmission control moduleCommon
- Software/calibration mismatch after a control-module replacementLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check for other powertrain or transmission codes that may share the root cause.
- Inspect the wiring and connectors between the engine and transmission control modules for damage, corrosion, or loose pins.
- Check grounds and reference voltages on the torque-management signal circuit.
- If wiring is good, have the control modules' data and calibration verified with a capable scan tool.
FAQ
Quick answers
Is it safe to drive with P258F?+
Short trips are usually fine, but harsh shifting or a limp mode can leave you with reduced power. Get it diagnosed before long drives.
Can I just clear P258F?+
It will come back until the underlying signal or wiring fault is fixed, so clearing it alone won't solve the problem.
Related codes
Often seen with P258F
Read & clear P258F yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX