Start with the solenoid's current draw
The only real decision on this Wiring page is which output drives the Line Pressure Control solenoid, and that comes down to how much current the solenoid draws. Look it up in the factory workshop manual for your transmission before you assign anything.
Matching it to a Nexus output
| Output type | Rating | Use it when |
|---|---|---|
| DPO (Digital Pulsed Output) | 3A on every Nexus | The solenoid's draw sits comfortably under 3A |
| HBO (Half-Bridge Output) | 5A | The solenoid draws more than a DPO should carry, or you're not sure |
Which outputs your ECU has, and where they are, is listed in its Quick Start Guide and wiring diagram. You'll find them on our wiring diagrams and ECU manuals pages.
When in doubt, go bigger
If you can't confirm the current draw, pick the higher rated output. An oversized output costs nothing, while an overloaded one can fail and leave the transmission without proper line pressure control.
Once it's wired, set it up in Line Pressure Control, then tune In Gear Base Duty and Shifting Base Duty Cycle.
