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Home >> Lexus >> 2021 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> Electronic A/T Shift Lever System (L310F) - Diagnostic Codes (2 Of 7) >> Electronic Shift Lever System >> DTC P177A-87: Lost Communication with Gear Shift Control Module Backup Power Supply Missing Message [10/2023 - ] >> Confirmation Driving Pattern

Confirmation Driving Pattern

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After repairs have been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the All Readiness check procedure.

Refer to UTILITY [10/2017 - ]

  1. Turn the power switch on (IG) and wait for 1 minute or more.
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