Part 1

NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

1. BUS CHECK

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

* *: Refer to the Diagnostic Trouble Code Chart CAN Communication System.

(b) MASTER CYLINDER SOLENOID (SKID CONTROL ECU)

HINT
DTC communication uses the CAN communication system.

(d) COMBINATION METER ASSEMBLY

HINT
DTC communication uses the CAN communication system.

(e) MULTIPLEX TILT AND TELESCOPIC ECU

HINT
DTC communication uses the CAN communication system.

* *: Refer to Power Tilt and Power Telescopic Steering Column System Power Tilt and Power Telescopic Steering Column System.

(f) CENTER AIRBAG SENSOR ASSEMBLY

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

(g) CERTIFICATION ECU

HINT
DTC communication uses the CAN communication system.

HINT
*: Refer to the Engine Immobiliser System Engine Immobilizer System.

(h) AIR CONDITIONING AMPLIFIER ASSEMBLY

HINT
DTC communication uses the CAN communication system.

(i) FRONT POWER SEAT SWITCH LH

HINT
The front power seat switch LH is connected to the CAN communication system but CAN communication DTCs are not stored.

(j) YAW RATE SENSOR ASSEMBLY

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

(k) SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

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

(l) HEADLIGHT SWIVEL ECU ASSEMBLY (AFS ECU)

* For vehicles with an adaptive front-lighting system.

HINT
DTC communication uses the CAN communication system.

(m) DISPLAY AND NAVIGATION MODULE DISPLAY

* For vehicles with a navigation system.

HINT
DTC communication uses the CAN communication system.

(n) POWER MANAGEMENT CONTROL ECU (POWER MANAGEMENT1)

HINT
DTC communication uses the CAN communication system.

(o) POWER MANAGEMENT CONTROL ECU (POWER MANAGEMENT)

HINT
DTC communication uses the CAN communication system.

(p) POWER MANAGEMENT CONTROL ECU

HINT
DTC communication uses the CAN communication system.

(q) DRIVING SUPPORT ECU ASSEMBLY

* For vehicles with a pre-collision system.

HINT
DTC communication uses the CAN communication system.

HINT
*1: Refer to Diagnostic Trouble Code Chart CAN Communication System.

*2: If this DTC is output, first perform troubleshooting for the pre-collision system, and then perform troubleshooting for the branch line Pre-Collision System.

(r) SEAT BELT CONTROL ECU

* For vehicles with a pre-collision system.

HINT
DTC communication uses the CAN communication system.

(s) PARKING ASSIST ECU

* For vehicles with an intuitive parking assist system (with side monitor system).

HINT
DTC communication uses the CAN communication system.

(t) CLEARANCE WARNING ECU ASSEMBLY

* For vehicles with an intuitive parking assist system (without side monitor system).

HINT
DTC communication uses the CAN communication system.

(u) SUSPENSION CONTROL ECU

* For vehicles with an air suspension system.

HINT
DTC communication uses the CAN communication system.

(v) STABILIZER CONTROL ECU

HINT
DTC communication uses the CAN communication system.

(w) DRIVING SUPPORT SWITCH CONTROL ECU

HINT
DTC communication uses the CAN communication system.

(x) OUTER MIRROR CONTROL ECU ASSEMBLY RH

HINT
DTC communication uses the CAN communication system.

(y) OUTER MIRROR CONTROL ECU ASSEMBLY LH

HINT
DTC communication uses the CAN communication system.

(z) MILLIMETER WAVE RADAR SENSOR ASSEMBLY

* For vehicles with a pre-collision system.

HINT
The millimeter wave radar sensor assembly is connected to the CAN communication system but CAN communication DTCs are not output.

(aa) LANE RECOGNITION CAMERA SENSOR ASSEMBLY

* For vehicles with a lane departure alert system.

HINT
The lane recognition camera sensor assembly is connected to the CAN communication system but CAN communication DTCs are not output.

(ab) DRIVER MONITOR ECU ASSEMBLY

* For vehicles with a driver monitor camera.

HINT
The driver monitor ECU assembly is connected to the CAN communication system but CAN communication DTCs are not output.