Powertrain CAN communication circuit inspection (Central GateWay)

Note

  • The installed devices vary depending on the vehicle. All the devices that may be connected to the CAN communication circuit are shown in the diagnostic procedure. Perform diagnosis only for the applicable device procedure.

1. Body control system check

Refer to "64.Body Control 10I.Troubleshooting(Central GateWay) diagnostic system check - central gateway controls".

2. Scan tool communication verification

Caution

  • If the IDSS is in use, check for a malfunction in the IDSS interface equipment. If the IDSS interface equipment LED does not illuminate, refer to Scan tool does not power up, and inspect the power supply.

1) Connect the scan tool.

2) Turn ON the ignition switch.

3) Check the vehicle specifications and verify the status of communication with the following control modules using a scan tool. Can communication with all the control modules be established?

  • ECM
  • Battery sensor
  • TCCM
  • Rear differential lock control unit
  • TCM
  • Information module

Yes

The system is normal.

No

=>Go to Powertrain CAN communication circuit inspection.

3. Powertrain CAN communication circuit inspection

1) Perform Scan tool does not communicate with CAN device.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) scan tool does not communicate with CAN device (models with radar sensor and stereo camera)".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 without DPD) scan tool does not communicate with CAN device (models with radar sensor and stereo camera)".

Refer to "51.Engine Control 1A.Troubleshooting(RZ4E-TC) scan tool does not communicate with CAN device (models with radar sensor and stereo camera)".

Procedure completion

=>Go to Repair verification.

4. Repair verification

1) Check the vehicle specifications and verify the status of communication with the following control modules using a scan tool. Can communication with all the control modules be established?

  • ECM
  • Battery sensor
  • TCCM
  • Rear differential lock control unit
  • TCM
  • Information module

Yes

The system is normal.

No

=>Go to Scan tool communication verification.