Can Communication System (For Lhd Without Central Gateway Ecu) Diagnosis System

Select "CAN Bus Check" from "System Select".

The systems (ECUs and sensors) that adopt CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed on the vehicle.

HINT:

The names of ECUs and sensors shown on the GTS display may differ from those shown in the DTC Table by ECU section.

ECM / GTS Display "Cruise Control"

HINT:

This ECU uses the CAN communication system for DTC communication.

Master Cylinder Solenoid (Skid Control ECU) / GTS Display "ABS/VSC/TRC"

HINT:

This ECU uses the CAN communication system for DTC communication.

Combination Meter Assembly / GTS Display "Combination Meter"

HINT:

This ECU uses the CAN communication system for DTC communication.

Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"

HINT:

This ECU uses the CAN communication system for DTC communication.

Power Steering ECU Assembly / GTS Display "PPS" (w/ Variable Flow Control Solenoid Valve)

HINT:

This ECU uses the CAN communication system for DTC communication.

Headlight Leveling ECU Assembly / GTS Display "HL Auto Leveling"

HINT:

This ECU uses the CAN communication system for DTC communication.

1. *: Refer to the Lighting System (Click here).
   

Main Body ECU (Multiplex Network Body ECU) / GTS Display "Main Body"

HINT:

1. This ECU uses the CAN communication system for DTC communication.
   
2. "Gateway" stores DTCs when a communication error is detected in the sub bus 1.
   

Certification ECU (Smart Key ECU Assembly)

HINT:

This ECU uses the CAN communication system for DTC communication.

1. GTS Display "Entry & Start"
   
   

   DTC	Detection Item
   U0100	Lost Communication with ECM/PCM "A"
   U0142	Lost Communication with Body Control Module "B"
   U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module
   U1117	Lost Communication with Accessory Gateway

2. Power Source Control
   
   

   DTC	Detection Item
   U0100	ECM Communication
   U0140	Lost Communication with Body Control Module
   U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module
   U1117	Lost Communication with Accessory Gateway

3. Starting Control
   
   

   DTC	Detection Item
   U0100	Lost Communication with ECM/PCM "A"

Multi-media Module Receiver Assembly / GTS Display "Navigation System" (for Multi-media Module Receiver Type)

HINT:

This ECU uses the CAN communication system for DTC communication.

Radio and Display Receiver Assembly / GTS Display "Navigation System" (for Radio and Display Type)

HINT:

This ECU uses the CAN communication system for DTC communication.

4WD Control ECU / GTS Display "Four Wheel Drive"

HINT:

This ECU uses the CAN communication system for DTC communication.

Steering Control ECU / GTS Display "VGRS" (w/ Variable Gear Ratio Steering System)

HINT:

This ECU uses the CAN communication system for DTC communication.

Tire Pressure Warning ECU / GTS Display "TPMS" (w/ Tire Pressure Warning System)

HINT:

This ECU uses the CAN communication system for DTC communication.

Multiplex Tilt and Telescopic ECU / GTS Display "Tilt&Telescopic" (w/ Power Tilt and Power Telescopic Steering Column System)

HINT:

This ECU uses the CAN communication system for DTC communication.

Outer Mirror Control ECU Assembly RH / GTS Display "D-Door Motor" (w/ Memory)

HINT:

This ECU uses the CAN communication system for DTC communication.

Outer Mirror Control ECU Assembly LH / GTS Display "P-Door Motor" (w/ Memory)

HINT:

This ECU uses the CAN communication system for DTC communication.

Power Back Door Unit Assembly (Power Back Door ECU) / GTS Display "Back Door" (w/ Power Back Door System)

HINT:

This ECU uses the CAN communication system for DTC communication.

Airbag Sensor Assembly

HINT:

The airbag sensor assembly is connected to the CAN communication system but CAN communication DTCs are not stored.

Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)

HINT:

The spiral with sensor cable sub-assembly (steering angle sensor) is connected to the CAN communication system but CAN communication DTCs are not stored.

Power Seat Switch Assembly (w/ Memory)

HINT:

The power seat switch assembly connected to the CAN communication system but CAN communication DTCs are not stored.

No. 2 Main Body ECU (w/ Tail Gate Closer System)

HINT:

The No. 2 main body ECU connected to the CAN communication system but CAN communication DTCs are not stored.

Bus Buffer ECU (w/ Bus Buffer ECU)

HINT:

The bus buffer ECU is connected to the CAN communication system but CAN communication DTCs are not stored.

Regarding a past communication error of an ECU and sensor connected to the V bus (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

HINT:

1. Based on the table below and DTCs output from ECUs connected v CAN communication, the probable part for which communication stop occurred can be determined.
   
2. Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).
   
3. If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
   
4. ○: DTC is output.
   
5. X: DTC is likely to be output.
   
6. ▲: DTC is unlikely to be output.
   
7. -: DTC is not output.
   
8. *: DTC U0073 may be stored when communication is lost.