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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different car >> Section 324 (Meter / Gauge System (12.3 Inch) - Diagnostic Codes, Symptom Tests & Circuit Tests) >> METER / GAUGE SYSTEM (for 12.3 Inch Display) >> DTC B1321-87: Lost Communication with EMV Missing Message [09/2022 - ] >> Description

DTC B1321-87: Lost Communication with EMV Missing Message [09/2022 - ]: Description

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After the combination meter assembly has started, the combination meter assembly attempts to detect the radio and display receiver assembly by performing communication via local bus.

This DTC is stored when the radio and display receiver assembly has been detected but communication between the combination meter assembly and radio and display receiver assembly is interrupted.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1321-87 Lost Communication with EMV Missing Message Diagnosis Condition: 
  • The combination meter assembly has started
  • The radio and display receiver assembly has started

Malfunction Status: 

  1. After the radio and display receiver assembly is detected, communication via local bus is interrupted

Malfunction Time: 

  1. 30 seconds or more
  • Harness or connector
  • Radio and display receiver assembly
  • Combination meter assembly