IS 250 RWD V6-2.5L (4GR-FSE) (2007)
g. ECM
h. Gateway ECU
i.
Power steering ECU
4. DIAGNOSTIC CODE FOR CAN COMMUNICATION SYSTEM
a. DTCs for the CAN communication system are as follows: U0073, U0100, U0101, U0122, U0123, U0124, U0126, U1101, U0105, U0121.
5. TROUBLESHOOTING REMARKS
a. DTCs for the CAN communication system can be checked using the intelligent tester via the CAN VIM. The DLC3 is connected to the CAN
communication system, but no DTCs exist regarding problems in the DLC3 or the DLC3 branch lines. If there is trouble in the DLC3 or the
DLC3 branch lines, ECUs on the CAN network cannot output codes to the intelligent tester via the CAN VIM.
b. Trouble in the CAN buses (communication lines) can be checked by measuring the resistance between terminals of the DLC3. However, an
open circuit in a branch line other than the DLC3 branch lines cannot be checked from the DLC3.
NOTE: Do not insert the tester probes directly into the DLC3. Be sure to use service wires.
6. HOW TO DISTINGUISH THE CAN J/C CONNECTOR
a. In the CAN communication system, the shape of all connectors connected to the CAN J/C is the same. The connectors connected to the CAN
J/C can be distinguished by the colors of the bus line and the connecting side of the junction connector.
HINT: See "TERMINALS OF ECU" for bus line color or the type of connecting surface.