Check Bus 4 Line for Short to +B [08/2020 - 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 +B when there is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3

Symptom	Trouble Area
There is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) 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) Airbag ECU assembly ECM Steering sensor Rack and pinion power steering gear assembly Brake booster with master cylinder assembly (skid control ECU) Parking brake ECU assembly Hybrid vehicle control ECU assembly Tire pressure warning ECU and receiver* Occupant detection ECU No. 1 CAN junction connector No. 4 CAN junction connector No. 6 CAN junction connector

Symptom

Trouble Area

There is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) 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)
Airbag ECU assembly
ECM
Steering sensor
Rack and pinion power steering gear assembly
Brake booster with master cylinder assembly (skid control ECU)
Parking brake ECU assembly
Hybrid vehicle control ECU assembly
Tire pressure warning ECU and receiver*
Occupant detection ECU
No. 1 CAN junction connector
No. 4 CAN junction connector
No. 6 CAN junction connector

*: w/ Tire Pressure System (Tire Inflation Pressure Display Function)