Diagnosis System

NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

1. BUS CHECK

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

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

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

3. CAN BUS CHECK

HINT
The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the Techstream.

(a) Using the Techstream, select "CAN Bus Check" from the screen on the Techstream.

4. DTC TABLE BY ECU

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

(a) COMBINATION METER ASSEMBLY

HINT
DTC communication uses the CAN communication system.

(b) MASTER CYLINDER SOLENOID (SKID CONTROL ECU)

HINT
DTC communication uses the CAN communication system.

(d) STABILIZER CONTROL ECU

For vehicles with a kinetic dynamic suspension control system.

HINT
DTC communication uses the CAN communication system.

(e) CENTER AIRBAG SENSOR ASSEMBLY

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

(f) SPIRAL CABLE SUB-ASSEMBLY (STEERING ANGLE SENSOR)

HINT
The steering angle sensor is connected to the CAN communication system, but CAN communication DTCs are not output.

(g) NAVIGATION RECEIVER ASSEMBLY

For vehicles with a navigation system.

HINT
DTC communication uses the CAN communication system.

(h) CERTIFICATION ECU

For vehicles with a smart key system.

HINT
DTC communication uses the CAN communication system.

(i) POWER MANAGEMENT CONTROL ECU (Power Management)

For vehicles with a smart key system.

HINT
DTC communication uses the CAN communication system.

(j) POWER MANAGEMENT CONTROL ECU (Power Management1)

For vehicles with a smart key system.

HINT
DTC communication uses the CAN communication system.

(k) YAW RATE SENSOR ASSEMBLY

HINT
The yaw rate and acceleration sensor is connected to the CAN communication system, but CAN communication DTCs are not output.

(l) POWER STEERING ECU ASSEMBLY

HINT
DTC communication uses the CAN communication system.

(m) FOUR WHEEL DRIVE CONTROL ECU

For vehicles with four wheel drive.

HINT
The four wheel drive control ECU is connected to the CAN communication system, but CAN communication DTCs are not output.

(n) ECM

HINT
The ECM is connected to the CAN communication system, but CAN communication DTCs are not output.

(o) AIR CONDITIONING AMPLIFIER ASSEMBLY

HINT
* DTC communication uses the CAN communication system.
* DTCs can be checked using the air conditioning control panel (DTC 99 is output).

(p) DRIVE MONITOR SWITCH

For vehicles with CRAWL control.

HINT
The drive monitor switch is connected to the CAN communication system, but CAN communication DTCs are not output.

5. DTC COMBINATION TABLE

HINT
* o: Stored.
* X: When one side of the branch wire is open, storage may occur.
* -: Not stored.
* *1: Only stored when communication recovery occurs. During a communication stop, it cannot be stored.
* *2: w/o Smart key System
* *3: w/ Smart key System
* *4: Only output while the malfunction is present and the ignition switch is ON.

V1 Bus Vol. 1

V1 Bus Vol. 2

V1 Bus Vol. 3

Power Management Bus

MS Bus