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 as ones detected in the normal mode can also be detected in the check mode.

Check the DTC.

1. Initial conditions
- Battery positive voltage 11 V or more
- Throttle valve fully closed
- Transmission in neutral 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.
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.
7. Check if the MIL blinks.

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

8. Start the engine (The MIL goes off after the engine starts).
9. Simulate the conditions of the malfunction described by the customer.

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

10. 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 the check mode to the normal mode. So all the DTCs, etc. will be erased.

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