D-Series P-Setting Guide (P01–P17) Every controller parameter, what it does, and the handful that cause real faults when set wrong. Applies to: D-series with the FarDriver controller D-Series P-Setting Guide in 20 Seconds — if the player does not load, open the video on YouTube. Before you change anything ⚠ Read this page fully first. Two parameters — P03 (voltage) and P14 (current limit) — can damage the battery, controller and motor if set outside specification. Damage caused by out-of-spec parameter values is not covered by warranty. See Warranty Claims. Write down the current value of any parameter before you change it. The parameters Parameter Setting Notes P01 Display brightness / backlight Cosmetic P02 Speed unit — 0 = KM/H, 1 = MPH See Changing the Speed Unit P03 Voltage level Must match your pack — 36V / 48V / 72V. Wrong value = real faults P04 Dormancy / sleep timer Minutes before the display sleeps P05 Backlight brightness Cosmetic P06 Wheel diameter Affects speedo accuracy P07 Speed signal magnets 1– 255. Wrong value makes the speedo read wrong P08 Speed limit 0– 100 km/h. 0 = no limit P09 Zero-start / non-zero-start Whether the throttle works from a standstill P10 Drive mode 0 = power, 1 = electric, 2 = coexist (pedal + motor) P11 Assist sensitivity 1– 24 P12 Start intensity 0– 5. How hard the motor comes in from a stop P13 Magnet disk count 5 / 8 / 12 — must match the PAS disk fitted P14 Controller current limit Default 12 A, range 1–20 A. Above specification damages the controller and motor P15 Undervoltage threshold Protects the pack from over-discharge. Do not lower this to chase range P16 ODO reset Long-press up for ~5 seconds to clear P17 Cruise control On/off The three that actually matter P03 voltage. Set it to the wrong level and the controller misreads the pack state — producing low-voltage and charging faults that look like hardware failures. P14 current limit. Raising it beyond specification is the fastest way to destroy a controller and motor. It is not a safe "free power" upgrade. P15 undervoltage. Lowering it to squeeze out more range deep-discharges the pack, which shortens its life. The protection is there for a reason. After changing a parameter Save / exit the menu properly. Power cycle — off, then on. Confirm the expected change (speedo unit, speed cap, assist level). Record what you changed in the Maintenance Log. Related Display & Error Codes — full E00–E13 reference Display & Settings Changing the Speed Unit · Limit Speed · Controller Reset Tutorials Index