Honda owners frequently lose keys or need replacement transponder chips. The Honda HDS software (especially v3.5 for older cars) allows you to program new keys to the Immobilizer system inside the ECU. Without this software, a locksmith or dealer charges $150-$300.
If you are using HondaECU 3.5.5.2, you may also need these related installers often bundled with it: RenesasRecovery 1.1.0: Used for recovering bricked or unresponsive ECUs. HondaECU Lite CANbus Edition: honda ecu 3.5 5.2 download
Before flashing any new map, use the software to perform data logging. Check parameters like: Honda owners frequently lose keys or need replacement