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Home >> Toyota >> 2025 >> RAV4 Plug-In Hybrid XSE >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> HEADUP Display System - Diagnostic Codes (PHEV) >> HEADUP Display System >> DTC B1321-87: Lost Communication with EMV Missing Message [10/2022 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

NOTE:
  • To measure the resistance of the CAN bus, turn the ignition switch off, wait at least 1 minutes without operating any keys or switches or opening or closing the doors, disconnect the auxiliary battery, wait at least 1 minutes again, and then measure the resistance.
  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [10/2022 - ]

  • When disconnecting and reconnecting the auxiliary battery

    HINT: 

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

    Refer to AUTOMATIC LEARNING CHART [12/2021 - ]

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

HINT: