Check Bus 5 Line for Short to +B [02/2019 - 12/2021]: Description

WARNING: This page is about a different variant/trim than selected.

There may be a short circuit between one of the CAN bus wire and +B when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3.

Symptom	Trouble Area
There is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3.	Short to +B in CAN main bus wire Short to +B in CAN branch wire Central gateway ECU (network gateway ECU) Headlight ECU sub-assembly LH1 Headlight ECU sub-assembly RH1 Position control ECU assembly2 Main body ECU (multiplex network body ECU) Certification ECU (smart key ECU assembly)3 Air conditioning amplifier assembly Multiplex network door ECU*4 Combination meter assembly No. 1 CAN junction connector No. 5 CAN junction connector No. 7 CAN junction connector

Symptom

Trouble Area

There is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3.

Short to +B in CAN main bus wire
Short to +B in CAN branch wire
Central gateway ECU (network gateway ECU)
Headlight ECU sub-assembly LH*1
Headlight ECU sub-assembly RH*1
Position control ECU assembly*2
Main body ECU (multiplex network body ECU)
Certification ECU (smart key ECU assembly)*3
Air conditioning amplifier assembly
Multiplex network door ECU*4
Combination meter assembly
No. 1 CAN junction connector
No. 5 CAN junction connector
No. 7 CAN junction connector

*1: w/ Headlight ECU

*2: w/ Memory

*3: w/ Smart Key System

*4: w/ Power Back Door System