How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2006 Toyota Tundra and 2005 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

DTCs for the CAN communication system are as follows:
U0073/94, U0100/65, U0123/62, U0124/95, U0126/63.
Refer to troubleshooting of each system if DTCs regarding the CAN communication system are not output.

Perform troubleshooting in accordance with the procedures on the following page.

Fig 1: CAN Communication System Troubleshooting Flow Chart