Diagnosis (Check Mode)

INSPECT DIAGNOSIS (Check Mode)

HINT:
Hand-held tester only:
Compared to the normal mode, the check mode has an increased sensitivity to detect malfunctions.
Furthermore the same diagnostic items which are detected in the normal mode can also be detected in the check mode.

a. Check the DTC.

1. Initial conditions
- Battery positive voltage 11 V or more
- Throttle valve fully closed
- Transmission in the P or N position
- A/C switched OFF

2. Turn the ignition switch OFF.
3. Prepare the hand-held tester.
4. Connect the hand-held tester to the DLC3 at the lower left of the instrument panel.
5. Turn the ignition switch ON and push the hand-held tester switch ON.




6. Switch the hand-held tester from the normal mode to the check mode (check that the MIL flashes).

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

7. Start the engine (the MIL goes 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 DTC, etc.

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

HINT: Be careful not to turn the ignition switch OFF. Turning the ignition switch OFF switches the diagnosis system from the check mode to the normal mode, so all the DTCs, etc. are erased.

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

b. Clear the DTC.

1. The following actions will erase the DTCs and freeze frame data.
- Operating the hand-held tester to erase the codes. (See the hand-held tester's instruction book for operating instructions.)
- Disconnecting the battery terminal or remove the EFI and ETCS fuses more than 60 sec.