CAN COMMUNICATION SYSTEM(for RHD with Central Gateway ECU) PROBLEM SYMPTOMS TABLE

Tip:

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.
Click here

Tip:

Refer to How to Proceed with Troubleshooting for the Bus Check procedure. the DTCs output from ECUs connected to the CAN communication system.

Table 2. Communication Stop Mode Table
Symptom	Suspected Area	Link
"Skid Control (ABS/VSC/TRAC)" is not displayed on GTS	Skid Control ECU Communication Stop Mode	Click here Click here
"Clearance Warning (Clearance Sonar)" is not displayed on GTS (w/ TOYOTA Parking Assist-sensor System [for 8 Sensor Type])	Clearance Warning ECU Communication Stop Mode	Click here
"Air Conditioning Amplifier" is not displayed on GTS	Air Conditioning Amplifier Communication Stop Mode	Click here
"Power Steering (EPS)" is not displayed on GTS	Power Steering ECU Communication Stop Mode	Click here
"Spiral cable (Steering Angle Sensor)" is not displayed on GTS	Steering Angle Sensor Communication Stop Mode	Click here
"ECM (Engine)" is not displayed on the GTS	ECM Communication Stop Mode	Click here
"Main Body" is not displayed on the GTS	Main Body ECU Communication Stop Mode	Click here
"Combination Meter" is not displayed on the GTS	Combination Meter ECU Communication Stop Mode	Click here
"Certification (Smart)" is not displayed on the GTS (w/ Entry and Start System)	Certification ECU Communication Stop Mode	Click here
"Airbag" is not displayed on the GTS	Center Airbag Sensor Communication Stop Mode	Click here
"Parking Assist Monitor System" is not displayed on GTS (w/ Parking Assist Monitor System [for Camera built-in ECU])	Television Camera ECU Communication Stop Mode	Click here
"Stop and Go/Start" is not displayed on the GTS (w/ Stop and Start System)	Engine Stop and Start ECU Communication Stop Mode	Click here
"Four Wheel Drive Control" is not displayed on the GTS (for 4WD/AWD)	4WD Control ECU Communication Stop Mode	Click here
"Blind Spot Monitor Master" is not displayed on the GTS (w/ Blind Spot Monitor System)	Blind Spot Monitor Sensor Communication Stop Mode	Click here
"Display and Navigation (AVN1)" is not displayed on the GTS (w/ Navigation System)	Navigation ECU Communication Stop Mode	Click here
"Display and Navigation (AVN1)" is not displayed on the GTS (w/ Audio and Visual System [for Radio and Display Type])	Audio Receiver Assembly Communication Stop Mode	Click here
"Driving Support (Cruise Control-ACC)" is not displayed on the GTS (w/ Pre-crash Safety System)	Driving Support ECU Communication Stop Mode	Click here
"CAN Gateway" is not displayed on GTS	Central Gateway ECU Communication Stop Mode	Click here
"Front Radar" is not displayed on the GTS (w/ Pre-crash Safety System)	Millimeter Wave Radar Sensor Communication Stop Mode	Click here
"Front Camera Module" is not displayed on the GTS (w/ Pre-crash Safety System)	Front Camera Module Communication Stop Mode	Click here

Table 3. DTC Combination Table
Symptom	Suspected Area	Link
Although CAN communication is currently normal, ECUs connected to each 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.	Click here Click here

Symptom	Suspected Area	Link
The result of "How to Proceed with Troubleshooting" is "Open in Bus 2 Main Bus Line".	Open in Bus 2 Main Bus Line	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 2 Lines for Short Circuit".	Check Bus 2 Lines for Short Circuit	Click here Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 2 Line for Short to +B".	Check Bus 2 Line for Short to +B	Click here Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 2 Line for Short to GND".	Check Bus 2 Line for Short to GND	Click here Click here
The result of "How to Proceed with Troubleshooting" is "Open in One Side of Bus 2 Branch Line".	Open in One Side of Bus 2 Branch Line	Click here
The result of "How to Proceed with Troubleshooting" is "Open in Bus 3 Main Bus Line".	Open in Bus 3 Main Bus Line	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 3 Lines for Short Circuit".	Check Bus 3 Lines for Short Circuit	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 3 Line for Short to +B".	Check Bus 3 Line for Short to +B	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 3 Line for Short to GND".	Check Bus 3 Line for Short to GND	Click here
The result of "How to Proceed with Troubleshooting" is "Open in One Side of Bus 3 Branch Line".	Open in One Side of Bus 3 Branch Line	Click here
The result of "How to Proceed with Troubleshooting" is "Open in Bus 5 Main Bus Line".	Open in Bus 5 Main Bus Line	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 5 Lines for Short Circuit".	Check Bus 5 Lines for Short Circuit	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 5 Line for Short to +B".	Check Bus 5 Line for Short to +B	Click here
The result of "How to Proceed with Troubleshooting" is "Check Bus 5 Line for Short to GND".	Check Bus 5 Line for Short to GND	Click here
The result of "How to Proceed with Troubleshooting" is "Open in One Side of Bus 5 Branch Line".	Open in One Side of Bus 5 Branch Line	Click here