Technical tip bulletin TT474: livewire - power disconnect update
Harley-Davidson/Livewire technical service bulletin TT474 for 2020 Harley-Davidson/Livewire Elw (Livewire).
- Bulletin number
- TT474
- Component
- Electrical system
- Summary
- TECHNICAL TIP BULLETIN TT474: LIVEWIRE - POWER DISCONNECT UPDATE. PURPOSE: Revision. An update to the power disconnect procedure has been made. The wait time of 2 minutes has been increased to 5 minutes to allow for proper system shut down on Electric LiveWire™ (ELW). This Technical Tip reinforces the ELW power disconnect procedure found in the owner's and service manuals. The power disconnect procedure must be followed whenever removing 12 V power. Disconnecting OBC [307-2] and not waiting 5 minutes after placing the OFF/RUN switch in OFF position can cause electrical issues including, but not limited to: • Diagnostic Trouble Codes (DTCs) generated. • Communication errors between the modules (OBC, Electric Vehicle Power-Train (EVPT), Rechargeable Energy Storage System (RESS)) that may be unrecoverable requiring replacement of the part.
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