Check Bus 5 Line for Short to GND [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 wires and GND when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.

Symptom	Trouble Area
There is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.	Short to GND in CAN main bus wire Short to GND 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 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.

Short to GND in CAN main bus wire
Short to GND 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