Corolla L4-1.8L (2ZZ-GE) (2005)
5. REMARKS FOR TROUBLESHOOTING
a. Trouble in the CAN bus (communication line) can be checked from the DLC3 (except a wire break other than in the DLC3 sub bus line).
b. By using the hand-held tester, DTCs for the CAN communication system can be checked through the DTC ISO 9141K-Line.
c. The CAN communication system cannot detect trouble in the DLC3 sub bus line even though the DLC3 is also connected to the CAN
communication system.