Diagnosis System

NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

1. BUS CHECK

HINT
Only CAN communication system DTCs for each ECU can be displayed on the Techstream.

(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 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) MASTER CYLINDER SOLENOID (SKID CONTROL ECU)

HINT
DTC communication uses the CAN communication system.

(b) MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

HINT
DTC communication uses the CAN communication system.

(d) SEAT BELT CONTROL ECU

For vehicles with the pre-collision system only.

HINT
DTC communication uses the CAN communication system.

(e) CLEARANCE WARNING ECU

For vehicles with the intuitive parking assist system only.

HINT
DTC communication uses the CAN communication system.

(f) MULTIPLEX TILT AND TELESCOPIC ECU

HINT
DTC communication uses the CAN communication system.

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

(g) DISPLAY AND NAVIGATION MODULE DISPLAY

For vehicles with the navigation system only.

HINT
DTC communication uses the CAN communication system.

(h) ECM

HINT
ECM is connected to the CAN communication system but CAN communication DTCs are not stored.

(i) OUTER MIRROR CONTROL ECU

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

(j) CENTER AIRBAG SENSOR

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

(k) CERTIFICATION ECU (SMART KEY ECU)

HINT
The certification ECU (smart key ECU) is connected to the CAN communication system but CAN communication DTCs are not stored.

(l) AIR CONDITIONING AMPLIFIER

HINT
DTC communication uses the CAN communication system.

(m) POSITION CONTROL ECU AND SWITCH

HINT
The position control ECU and switch is connected to the CAN communication system but CAN communication DTCs are not stored.

(n) TIRE PRESSURE WARNING ECU

For vehicles with the tire pressure warning system only.

HINT
DTC communication uses the CAN communication system.

(o) NETWORK GATEWAY ECU

HINT
DTC communication uses the CAN communication system.

(p) 4WD CONTROL ECU

HINT
The 4WD control ECU 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.

*1: Only output when communication recovery has occurred. During communication stop, cannot be stored.

*2: Stored when vehicle speed is 15 km/h (9 mph) or more.

*3: This DTC is not stored when only the spd signal is lost. When any of DTCs C2121 to C2125 is stored and the spd signal is lost, this DTC is stored.

*4: Only stored while malfunction continues.