1.Set the vehicle to the pre-inspection condition.

2.Turn the ignition switch to "LOOK" (OFF) position, and connect the diagnosis connector to the M.U.T.-III.
3.Start the engine, and let it run at idle.
4.Check the idle speed. Select item No. 2 and take a reading of the idle speed.
Standard value: 830 ± 50 r/min
5.If the idle speed is not within the standard value, inspect the diesel system (Refer to GROUP 13A - Troubleshooting - Inspection Chart for Trouble Symptom ).
6.Turn the ignition switch to the "LOCK" (OFF) position and then disconnect the M.U.T.III.