Diagnosis System

NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

1. BUS CHECK

(a) Select "CAN Bus Check" from "System Select".

2. CHECK INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION

(a) 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.

3. DTC TABLE BY ECU

HINT
* In the CAN communication system, CAN communication system DTCs stored by an ECU can be output by using the Techstream.
* If CAN communication system DTCs are output, the trouble cannot be determined solely from the DTCs. Perform troubleshooting according to "How to Proceed with Troubleshooting".

(a) ECM

HINT
DTC communication uses the CAN communication system.

* *1: for Automatic Transaxle

* *2: Refer to the SFI system U0101.

(b) POWER SOURCE CONTROL ECU

For vehicles with a smart key system.

HINT
DTC communication uses the CAN communication system.

(d) COMBINATION METER ASSEMBLY

HINT
DTC communication uses the CAN communication system.

(e) BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)

HINT
DTC communication uses the CAN communication system.

(f) MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

HINT
The main body ECU (multiplex network body ECU) is connected to the CAN communication system but CAN communication DTCs are not stored.

(g) YAW RATE SENSOR ASSEMBLY

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

(h) 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.

(i) CENTER AIRBAG SENSOR ASSEMBLY

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

(j) CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

For vehicles with a smart key system.

HINT
DTC communication uses the CAN communication system.

(k) POWER STEERING ECU ASSEMBLY

HINT
DTC communication uses the CAN communication system.

(l) TRANSMISSION CONTROL ECU ASSEMBLY

For vehicles with an automatic transaxle.

HINT
The transmission control ECU assembly is connected to the CAN communication system but CAN communication DTCs are not stored.

4. DTC COMBINATION TABLE

HINT
* o: Stored.
* X: When one side of branch wire is open, storage may occur.
* -: Not stored.
* *: Only stored when communication recovery has occurred. During communication stop, cannot be stored.

V1 Bus Vol. 1

V1 Bus Vol. 2

V1 Bus Vol. 3