Diagnosis (Normal Mode)

INSPECT DIAGNOSIS (NORMAL MODE)




a. Check the MIL

1. The MIL turns on when the ignition switch is turned ON and the engine is not running.

HINT: If the MIL does not turn on, troubleshoot the combination meter.

2. When the engine is started, the MIL should turn off. If the lamp remains on, the diagnosis system has detected a malfunction or an abnormality in the system.

b. Check the DTC

NOTE:
Hand-held tester only:
When the diagnosis system is changed from normal mode to check mode or vice-versa, all DTCs and freeze frame data recorded in normal mode will be erased. Before changing modes, always check and make a note of DTCs and freeze frame data.




1. Prepare an OBD II scan tool (complying with SAE J1978) or hand-held tester.
2. Connect the OBD II scan tool or hand-held tester to the DLC3 at the lower of the instrument panel.
3. Turn the ignition switch ON and press the OBD II scan tool or hand-held tester switch ON.
4. Select the item "DIAGNOSIS /ENHANCED OBD II/ DTC INFO/CURRENT CODES".
5. Use the OBD II scan tool or hand-held tester to check the DTCs and freeze frame data and make a note of them (see the instruction manual for the OBD II scan tool or the hand-held tester).
6. See Trouble Code Descriptions to confirm the details of the DTCs.

NOTE: When simulating symptoms with the OBD II scan tool (excluding the hand-held tester) to check for DTCs, use normal mode. For DTCs subject to "2 trip detection logic", turn the ignition switch OFF after the symptom is simulated the 1st time. Then repeat the simulation process again. When the problem has been simulated twice, the MIL illuminates on the instrument panel and DTCs are recorded in the ECM.

c. Clear the DTC.
When using the OBD II scan tool or hand held tester: Operate the OBD II scan tool or hand held tester to erase the DTC and freeze frame data (see the instruction manual for the OBD II scan tool or hand held tester).

HINT: Erase DTCs and freeze frame data with the OBD II scan tool (complying with SAE J1978) or the hand held tester (see the OBD II scan tool s instruction manual for operating procedures).

d. Clear the DTC
When not using the OBD II scan tool or hand held tester: Disconnect the battery negative (-) terminal or remove the EFI No.1 and ETCS fuses from the engine room J/B for 60 seconds or more. When disconnecting the battery terminal, perform the "INITIALIZE" procedure.