Can Communication System (W/ Vsc) Diagnosis System

Select "Bus Check" from the "System Select" screen on the intelligent tester.

Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter".

Select the system of the DTC to be checked and select "Details".

CAN communication system DTCs are output.

Select "Communication Bus Check" from the "Bus Check" screen.

The screen displays the ECUs and sensors that are properly connected to the CAN communication system.

HINT:

1. If any properly connected ECUs or sensors are not displayed, there is a communication stop in the system (HILUX_TGN26 RM000004PEO007X.html).
   
2. The default item displayed in the combo box is "ALL". When checking the ECUs (sensors) connected to each bus, pull down the combo box and select the bus to be checked from the drop-down list. The drop-down list displays "ALL", "V Bus" and the names of the remaining buses.
   

   Combo Box	Display Content
   ALL	All ECUs (sensors) connected to the CAN bus
   V Bus	ECUs (sensors) connected to the V Bus
   Bus Name	ECUs (sensors) connected to the selected bus

3. The connection status (shown below) is indicated by the background color displayed behind the system name.
   

   ECU (Sensor) on V Bus

   Background Color	Connection Status
   White	Detected normally
   Yellow	Could not be detected in the past, but is currently detected
   Red	Detected in the past, but cannot be detected now
   Not displayed	Has never been detected

   ECU (Sensor) with No Data Monitor History

   Background Color	Connection Status
   White	Detected normally
   Yellow	Could not be detected in the past, but is currently detected
   Red	Detected in the past, but cannot be detected now
   Not displayed	Has never been detected

   ECU (Sensor) with Data Monitor History

   Background Color	Connection Status
   White	Detected normally
   Yellow	Could not be detected in the past, but is currently detected
   Red	Detected in the past, but cannot be detected now
   Red	Has never been detected but has connection history
   Not displayed	Has never been detected

"There is no system connected to the communication bus." is displayed if there are no ECUs or sensors connected to the CAN bus.

Systems (ECUs and sensors) that use CAN communication vary depending on the optional settings of the vehicle. Check which systems (ECUs and sensors) are installed on the vehicle.

ECM

HINT:

DTC communication uses the CAN communication system.

1. *: Refer to the ECD system.
   
1. w/ EGR Cooler (HILUX_TGN26 RM000001O2V09IX.html)
   
2. w/o EGR Cooler (HILUX_TGN26 RM000001O2V09JX.html)
   
3. for i-ART (HILUX_TGN26 RM000001O2V09GX.html)
   

TRANSMISSION CONTROL ECU ASSEMBLY (TCM)

HINT:

DTC communication uses the CAN communication system.

1. *: Refer to the automatic transmission system (HILUX_TGN26 RM000001RRQ05IX.html).
   

BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

HINT:

DTC communication uses the CAN communication system.

YAW RATE SENSOR ASSEMBLY

HINT:

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

SPIRAL CABLE SUB-ASSEMBLY (STEERING ANGLE SENSOR)

HINT:

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