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Home >> Lexus >> 2017 >> IS 350 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes (1 Of 2) >> Meter / Gauge System >> DTC B1321: Lost Communication with EMV; DTC B1326: Lost Communication with Clock Device (Local-CAN) [09/2020 - ] >> Description

DTC B1321: Lost Communication with EMV; DTC B1326: Lost Communication with Clock Device (Local-CAN) [09/2020 - ]: Description

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

If a local bus communication error occurs after the radio receiver assembly and clock assembly has been detected, the combination meter assembly stores these DTCs.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
B1321 Lost Communication with EMV Diagnosis Condition:
  • The combination meter assembly has started
  • The radio receiver assembly has started

Malfunction Status:
  1. After the radio receiver assembly is detected, communication via local bus is interrupted

Malfunction Time:
  1. 30 seconds or more
  • Harness or connector
  • Radio receiver assembly
  • Clock assembly
  • Remote operation controller assembly
  • Combination meter assembly
DTC stored
B1326 Lost Communication with Clock Device (Local-CAN) Diagnosis Condition:
  1. The combination meter assembly has started

Malfunction Status:
  1. After the clock assembly is detected, communication via local bus is interrupted

Malfunction Time:
  1. 30 seconds or more
  • Harness or connector
  • Radio receiver assembly
  • Clock assembly
  • Remote operation controller assembly
  • Combination meter assembly
DTC stored