Problem Symptoms Table [07/2015 - ]

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ] ).

RESULT LIST OF HOW TO PROCEED WITH TROUBLESHOOTING

Symptom	Suspected Area	Refer To
The result of "How to Proceed with Troubleshooting" is "Open in CAN Main Bus Line".	Open in CAN Main Bus Line (Includes DLC3 branch lines and terminating resistors)	Refer to Open in CAN Main Bus Line [07/2015 - ]
The result of "How to Proceed with Troubleshooting" is "Short in CAN Bus Lines".	Short in CAN Bus Lines	Refer to Check CAN Bus Lines for Short Circuit [07/2015 - ]
The result of "How to Proceed with Troubleshooting" is "Short to +B in CAN Bus Line".	Short to +B in CAN Bus Line	Refer to Check CAN Bus Line for Short to +B [07/2015 - ]
The result of "How to Proceed with Troubleshooting" is "Short to GND in CAN Bus Line".	Short to GND in CAN Bus Line	Refer to Check CAN Bus Line for Short to GND [07/2015 - ]
The result of "How to Proceed with Troubleshooting" is "Open in One Side of CAN Branch Line".	Open in One Side of CAN Branch Line	Refer to Open in One Side of CAN Branch Line [07/2015 - ]

HINT:

Refer to How to Proceed with Troubleshooting for the V bus check procedure.

The suspected communication stop area can be determined based on the ECU or sensor that was not displayed in CAN Bus Check and by referring to the following table.

COMMUNICATION STOP MODE TABLE

Symptom	Suspected Area	Refer To
"Skid Control (ABS/VSC/TRAC)" is not displayed on the Techstream.	Skid Control ECU Communication Stop Mode	Refer to Skid Control ECU Communication Stop Mode [07/2015 - ]
"Clearance Warning (Intuitive Parking Assist1)" is not displayed on the Techstream.*1	Clearance Warning ECU Communication Stop Mode	Refer to Clearance Warning ECU Communication Stop Mode [07/2015 - ]
"Air Conditioning Amplifier" is not displayed on the Techstream.	Air Conditioning Amplifier Communication Stop Mode	Refer to Air Conditioning Amplifier Communication Stop Mode [07/2015 - ]
"Power Steering (EPS)" is not displayed on the Techstream.	Power Steering ECU Communication Stop Mode	Refer to Power Steering ECU Communication Stop Mode [07/2015 - ]
"Spiral cable (Steering Angle Sensor)" is not displayed on the Techstream.	Steering Angle Sensor Communication Stop Mode	Refer to Steering Angle Sensor Communication Stop Mode [07/2015 - ]
"ECM (Engine) and TCM" are not displayed on the Techstream.	ECM Communication Stop Mode	Refer to ECM Communication Stop Mode [07/2015 - ]
"Main Body" is not displayed on the Techstream.	Main Body ECU Communication Stop Mode	Refer to Main Body ECU Communication Stop Mode [07/2015 - ]
"Combination Meter" is not displayed on the Techstream.	Combination Meter ECU Communication Stop Mode	Refer to Combination Meter ECU Communication Stop Mode [07/2015 - ]
"Certification (Smart)" is not displayed on the Techstream.	Certification ECU Communication Stop Mode	Refer to Certification ECU Communication Stop Mode [07/2015 - ]
"Airbag" is not displayed on the Techstream.	Center Airbag Sensor Communication Stop Mode	Refer to Center Airbag Sensor Communication Stop Mode [07/2015 - ]
"Display and Navigation (AVN1)" is not displayed on the Techstream.23	Audio Receiver Assembly Communication Stop Mode	Refer to Audio Receiver Assembly Communication Stop Mode [07/2015 - ]
"DCM" is not displayed on the Techstream.*4	DCM Communication Stop Mode	Refer to DCM Communication Stop Mode [07/2015 - ]
"Headlight swivel (AFS)" is not displayed on the Techstream.56	AFS ECU Communication Stop Mode	Refer to AFS ECU Communication Stop Mode [07/2015 - ]

HINT:

*1: w/ Intuitive Parking Assist System
*2: for Navigation Receiver Type
*3: for Radio and Display Type
*4: for Lexus Enform Remote Compatible Type
*5: w/ Automatic Headlight Beam Level Control System
*6: w/ Adaptive Front-lighting System

DTC COMBINATION TABLE

Symptom	Suspected Area	Refer To
Although CAN communication (V bus) is currently normal, ECUs connected to the V bus store CAN communication DTCs.	The probable part for which communication is interrupted can be determined using DTC Combination Table and comparing the DTCs output from ECUs connected to the CAN communication system	Refer to DIAGNOSIS SYSTEM [07/2015 - 08/2016] Refer to DIAGNOSIS SYSTEM [08/2016 - ]