Check CAN Bus Lines for Short Circuit (07/2015 -): Description

There may be a short circuit between the V bus main lines and/or CAN branch lines when the resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3 is below 54 Ω.

Symptom	Trouble Area
Resistance between terminals 6 (CANH) and 14 (CANL) of DLC3 is below 54 Ω.	Short in CAN main bus lines Short in CAN branch lines Combination meter assembly Power steering ECU with motor assembly Main body ECU (Multiplex network body ECU) Steering sensor Airbag sensor assembly ECM Brake actuator assembly (Skid control ECU) Air conditioning amplifier assembly Certification ECU (Smart key ECU assembly) Headlight leveling ECU (Headlight swivel ECU assembly)1 Headlight swivel ECU assembly7 Radio receiver assembly234 Clearance warning ECU assembly5 DCM (Telematics transceiver)*6 CAN junction connector LH1 CAN junction connector RH1

Symptom

Trouble Area

Resistance between terminals 6 (CANH) and 14 (CANL) of DLC3 is below 54 Ω.

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

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