Unlike newer boards with a dedicated 5-pin "Touch" port, the V2.2 typically requires using the headers or specific IO pins for auto-leveling.
Dedicated terminals for DC Power In , Hot Bed , and Nozzle Heater . It also includes a controllable fan port for part cooling. Creality V2 2 Board Diagram
If you actually have the older 8-bit Creality v2.2 Board (which is rare and was used in some older Ender 3s), please clarify, as the pinouts above are for the modern 32-bit v4.2.2 board. Unlike newer boards with a dedicated 5-pin "Touch"
| Symptom | What the Diagram Reveals | Fix | |----------------------------------|----------------------------------------------------|------| | Heater not reaching temperature | Check TH0 thermistor pull-up resistor (R5, 4.7kΩ) | Replace R5 or thermistor | | Stepper motor grinding noise | MS1/MS2 jumpers missing or in wrong mode | Set jumpers for 16 microsteps | | BL-Touch deploys but doesn’t stop | PB7 is not reading because bed heater is active | Use Z_MIN_PROBE_PIN override | | USB not recognized | Fuse F2 (500mA) blown near USB port | Solder 0603 500mA PTC fuse | | Random thermal runaway | Poor solder joint on HEATER_BED MOSFET gate | Reflow Q2 with solder iron | If you actually have the older 8-bit Creality v2