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Home >> Toyota >> 2021 >> Prius LE AWD-e >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display - Diagnostic Codes & Symptom Tests >> Meter / Gauge System >> DTC B150A: Lost Communication with HMI-LAN [08/2019 -] >> Description

DTC B150A: Lost Communication with HMI-LAN [08/2019 -]: Description

The combination meter assembly (meter circuit plate) receives text data signals from the radio and display receiver assembly*1 or navigation receiver assembly*2 via local bus communication.

Based on these signals, audio and visual system*1 or navigation system*2 information is displayed on the multi-information display.

This DTC is stored when the combination meter assembly (meter circuit plate) cannot receive the signal.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B150A Lost Communication with HMI-LAN Diagnosis Condition:
  • A registration information signal was received from the radio and display receiver assembly*1 or navigation receiver assembly*2 when ACC power source voltage was received by the radio and display receiver assembly*1 or navigation receiver assembly*2
  • The power switch is on (IG).
  • IG power source voltage is 9.5 V or more.

Malfunction Status:
  1. The registration information signal is not received from the radio and display receiver assembly*1 or navigation receiver assembly*2

Malfunction Time:
  1. 30 seconds or more
  • Harness or connector
  • Radio and display receiver assembly*1
  • Navigation receiver assembly*2
  • Combination meter assembly (Meter circuit plate)
 DTC stored w/ Audio Tab Display
  1. *1: w/o Navigation System
  2. *2: w/ Navigation System
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