P064BPTO Control Module
- Generic OBD-II code · Powertrain
- Can trigger limp mode
- How the car detects it
- A power take-off (PTO) drives equipment on trucks and pick-ups – tipper, crane, hydraulic pump or winch – from the engine or transmission. A PTO control module, or the PTO function in the engine module, manages switching, working speed and release conditions; P064B reports a fault of this module or an implausible PTO request. The only manufacturer document found is a Chrysler case for Ram chassis cabs: with the PTO engaged the engine speed hunts and does not rise above about 1100 rpm, P064B sets together with the torque monitoring code P061B and the PTO switches off; the cause was software, so check upfitter installation and programming before replacing parts. CARB defines PTO units and allows monitors to pause while one is active. Thresholds and lamp status are not published; driving is usually normal.
- What you may notice
- PTO switches off or cannot be engaged
- Engine speed hunts with PTO active or stays below about 1100 rpm (Chrysler)
- Warning lamp or stored code; driving usually normal
- Likely causes
- LikelyEngine or PTO module software or calibration (implausible torque or speed request)
- PossiblePTO equipment installed or programmed incorrectly by the upfitter
- PossibleHarness, connector or supply of the PTO module or switches
- RarePTO control module faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.