The standalone software works without requiring a constant internet connection.
| Symptom | Likely Cause | Fix | |---------|--------------|-----| | No CAN communication | Terminator resistor missing | Verify 120Ω resistor in last POWERCELL | | Turn signals flash fast | INPUT module misreading stock flasher | Remove stock flasher; use direct switch wiring | | Headlights dim on idle | Alternator undersized (Infinitybox needs 13.2V min) | Upgrade to 100A+ alternator | | Power window stuck | Current limit set too low (10A vs 20A needed) | Reprogram via PC tool | infinityboxinstallbestv229 new