Powertrain
generic / SAE
P258F
Torque Management Request Output Signal
The ECM/PCM produces a torque-management output signal for downstream consumers (TCM during shifts, hybrid module, transfer case) and detects a fault on this output — open, short, or feedback voltage outside expected range. Without it, downstream modules cannot synchronise their behaviour with the engine.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 8F
Possible causes
- Open or shorted output line high
- Downstream consumer not loading the line medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 120–800 €
- Estimated time: 0.5–3 h
- Component: torque management output
- MIL / check engine light
Sources
References
sae:J2012