Diagnosis (Check Mode)

INSPECT DIAGNOSIS (Check Mode)

HINT:
Hand-held tester:
Compared to normal mode, check mode has a higher level of sensitivity to malfunction.

Furthermore, the same diagnostic items which are detected in normal mode can also be detected in check mode.

a. Check the DTC.

1. Initial conditions
- Battery positive voltage 11 V or more
- Throttle valve fully closed
- Transaxle in the N position
- Air conditioning switched off

2. Turn the ignition switch OFF.
3. Prepare the hand-held tester.




4. Connect the hand-held tester to the DLC3.
5. Turn the ignition switch ON and switch the handheld tester ON.




6. Switch the hand-held tester from normal mode to check mode. Check that the MIL flashes.
7. Start the engine. Check that the MIL turns off after the engine starts.
8. Simulate the conditions of the malfunction described by the customer.

NOTE: Leave the ignition switch ON until you have checked the DTCs, etc.

9. After simulating the malfunction conditions, use the hand-held tester diagnosis selector to check the DTCs and freeze frame data, etc.

HINT: Take care not to turn the ignition switch OFF. Turning the ignition switch OFF switches the diagnosis system from check mode to normal mode, erasing all the DTCs, etc.

10. After checking the DTC, inspect the applicable circuit.

b. Clear the DTC.

The following action will erase the DTCs and freeze frame data.
Select the CLEAR FREEZE DATA on the DIAGNOSTIC MENU.

NOTE: If the hand-held tester switches the ECM from normal mode to check mode or vice-versa, or if the ignition switch is turned from ON to ACC or OFF during check mode, the DTCs and freeze frame data will be erased.