PITSTOP - HYBRID POWER CONTROL UNIT 30A DC FUSE - The 2017MY~ Optima Hybrid (JF HEV), Optima Plug-in Hybrid (JF PHEV), and Niro (DE HEV) vehicles are equipped with a replaceable 30A fuse for the eCompressor. This fuse is easily accessible under a cover between the power cable connector and inverter cable, as shown below. However, the housing for the fuse is internally bolted to the HPCU assembly and is only available as part of the HPCU assembly. Forcibly removing the fuse housing assembly will result in damaging the internal HPCU terminals which will require replacement of the entire HPCU assembly and is not covered under Warranty.Follow the procedure in this ublication to inspect and/or replace the fuse, or refer to the ?Hybrid Control System ? Hybrid Control System ? DC Fuse ? Repair procedures? chapter in the applicable Shop Manual on KGIS.