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Home >> Lexus >> 2022 >> NX 350 Base >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> Electronic A/T Shift Lever System - Diagnostic Codes & Circuit Tests >> Electronic Shift Lever System >> DTC U0291-00: Lost Communication with Gear Shift Control Module "B" (System 2) Missing Message [11/2021 - ] >> Monitor Description
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Monitor Description

The shift control ECU monitors the CAN communication system for malfunctions, and if a malfunction is detected, the ECM stores a DTC and the MIL illuminates.

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