Powertrain
generic / SAE
P2550
Torque Management Request Input Signal B Low
Torque management input B reads stuck low — short to ground or message at minimum. ECM rejects the request, only A-side is used.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 50
Possible causes
- Signal wire shorted to ground high
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 120–800 €
- Estimated time: 0.5–3 h
- Component: torque management input b
- MIL / check engine light
Sources
References
sae:J2012