Check CAN Bus Line for Short to +B (2016 - 2017): Description

There may be a short circuit between one of the CAN bus lines and +B when no resistance exists between terminals 6 (CANH) and 16 (BAT) or 14 (CANL) and 16 (BAT) of the DLC3.

Symptom	Trouble Area
No resistance exists between terminals 6 (CANH) and 16 (BAT) or 14 (CANL) and 16 (BAT) of DLC3.	Short in CAN main bus line Short in CAN branch line Hybrid vehicle control ECU assembly ECM Main body ECU (Multiplex network body ECU) Combination meter assembly Brake booster with master cylinder assembly (Skid control ECU) Steering sensor Power steering ECU with motor assembly Airbag sensor assembly Air conditioning amplifier assembly Certification ECU (Smart key ECU assembly) Radio receiver assembly123 Clearance warning ECU assembly4 DCM (Telematics transceiver)5 Headlight leveling ECU (Headlight swivel ECU assembly)6 Headlight swivel ECU assembly*7 CAN junction connector LH1 CAN junction connector RH1

Symptom

Trouble Area

No resistance exists between terminals 6 (CANH) and 16 (BAT) or 14 (CANL) and 16 (BAT) of DLC3.

Short in CAN main bus line
Short in CAN branch line
Hybrid vehicle control ECU assembly
ECM
Main body ECU (Multiplex network body ECU)
Combination meter assembly
Brake booster with master cylinder assembly (Skid control ECU)
Steering sensor
Power steering ECU with motor assembly
Airbag sensor assembly
Air conditioning amplifier assembly
Certification ECU (Smart key ECU assembly)
Radio receiver assembly*1*2*3
Clearance warning ECU assembly*4
DCM (Telematics transceiver)*5
Headlight leveling ECU (Headlight swivel ECU assembly)*6
Headlight swivel ECU assembly*7
CAN junction connector LH1
CAN junction connector RH1

*1: for Navigation Receiver Type
*2: for Radio and Display Type (w/ Parking Assist Monitor System with Parallel Parking Assist Function)
*3: for Radio and Display Type (w/ Parking Assist Monitor System without Parallel Parking Assist Function)
*4: w/ Intuitive Parking Assist System
*5: for Lexus Enform Remote Compatible Type
*6: w/ Automatic Headlight Beam Level Control System
*7: w/ Adaptive Front-lighting System