Diagnosis System

CAN COMMUNICATION: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

DIAGNOSIS SYSTEM

1. CAN BUS CHECK
(a) Using the Techstream, select "CAN Bus Check" from the "System Select".
2. CHECK FOR INSTALLED SYSTEMS (ECU & SENSOR) THAT USE CAN COMMUNICATION
(a) The systems (ECU, sensor) that use CAN communication vary depending on the vehicle's optional settings. Check which systems (ECU, sensor) are installed on the vehicle.





HINT: If enhanced VSC is not installed, neither the yaw rate sensor nor the steering angle sensor is used.

3. DTC TABLE BY ECU
HINT: If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to "HOW TO PROCEED WITH TROUBLESHOOTING" How to Proceed With Troubleshooting.

(a) HYBRID VEHICLE CONTROL ECU
HINT: DTC communication uses the CAN communication system.





(b) BATTERY ECU
HINT: DTC communication uses the CAN communication system.





(c) ECM
HINT: DTC communication uses the CAN communication system.





(d) SKID CONTROL ECU
HINT: DTC communication uses the SIL line.





with Enhanced VSC
(e) GATEWAY ECU
HINT: The gateway ECU is connected to the CAN communication system but CAN communication system DTCs are not output.

(f) POWER STEERING ECU
HINT: DTC communication uses the SIL line.





4. DTC COMBINATION TABLE
(a) Perform troubleshooting according to the combination of DTCs output.





HINT: o: Outputs
x: Not output
-: Undetectable
NOTICE:
- If U0146 or P3108-594 is output, check the "MULTIPLEX COMMUNICATION SYSTEM" Multiplex Communication System before proceeding to "GATEWAY ECU COMMUNICATION STOP MODE".
- If U0100-211 or U0111-208 is output separately by the hybrid control ECU, refer to "HYBRID CONTROL SYSTEM" U0100.
HINT:
- HYBRID VEHICLE CONTROL ECU COMMUNICATION STOP MODE Hybrid Vehicle Control ECU Communication Stop Mode.
- ECM COMMUNICATION STOP MODE ECM Communication Stop Mode.
- BATTERY ECU COMMUNICATION STOP MODE Battery ECU Communication Stop Mode.
- SKID CONTROL ECU COMMUNICATION STOP MODE Skid Control ECU Communication Stop Mode.
- STEERING ANGLE SENSOR COMMUNICATION STOP MODE Steering Angle Sensor Communication Stop Mode.
- YAW RATE SENSOR COMMUNICATION STOP MODE Yaw Rate Sensor Communication Stop Mode.
- POWER STEERING ECU COMMUNICATION STOP MODE Power Steering ECU Communication Stop Mode.
- GATEWAY ECU COMMUNICATION STOP MODE Gateway ECU Communication Stop Mode.