Prius L4-1.5L (1NZ-FXE) (Hybrid) (2003)
a. Prepare the hand-held tester.
b. Connect the hand-held tester to DLC3.
c. Turn the ignition switch ON and switch the hand-held tester main switch ON.
d. Use the hand-held tester to check the DTCs, note them down. (For opening instructions, see the hand-held tester's instruction book.)
e. See Trouble Code Descriptions to confirm the details of the DTCs.
With Generic Scan Tool
TOYOTA does not provide a procedure for Reading Trouble Codes With Generic Scan Tool.
Without Scan Tool
DTC CHECK (Using diagnosis check wire)
a. Using SST, connect terminals Tc and CG of DLC3.
SST 09843-18020
b. Turn the ignition switch ON.
c. Read the DTC on the open door indicator light.