Diagnostic Trouble Code Chart

DTC COMBINATION TABLE
NOTE: Complete "CHECK CAN BUS LINE" (see CHECK CAN BUS LINE ) to confirm that there is no malfunction in the CAN bus line, and then perform troubleshooting according to the following DTC combination table.
1. Confirm the trouble mode according to the combination of output DTCs.
  HINT:
  
  Fig 1: DTC Combination Chart
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  - DTC U1223 is also output when U0073 or U0124 is output.
  - U0073/94, U0123/62, U0124/95 and U0126/63 are the DTCs in the CAN communication system.
  - The above table shows combinations of these DTCs.
  - O.....DTCs that are being output.
  - -......DTCs that are not being output.
2. Confirm the trouble mode by referring to the above. Then check the parts to be replaced, by referring to the below.
  
  Fig 2: Diagnostic Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. DTC detection condition
Fig 3: DTC Reference Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002