Mirage Sedan LS L4-1834cc 1.8L SOHC MFI (1999)
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Drive Belt: Testing and Inspection
Alternator
DRIVE BELT TENSION CHECK
GENERATOR DRIVE BELT TENSION CHECK
Check drive belt tension in one of the following procedures.
Standard value:
<When using the scan tool (MUT-II)>
1. Connect the belt tension meter set (special tool) to the scan tool (MUT-II).
2. Connect the scan tool (MUT-II) to the diagnosis connector.
3. Turn the ignition switch to "ON" and select "Belt Tension Measurement" on the menu screen.
4. Hold the microphone to the middle of the drive belt between the pulleys (at the place indicated by an arrow) about 10 - 20 mm (0.39 - 0.79 inch)
away from the rear surface of the belt and so that it is perpendicular to the belt (within an angle of ±15°).
5. Lightly tap the middle of the belt between the pulleys (the place indicated by the arrow) with your finger as shown in the illustration. Check that
the vibration frequency of the belt is within the standard value.
Caution:
1. The temperature of the surface of the belt should be as close as possible to normal temperature.
2. Do not allow any contaminant such as water or oil to get onto the microphone.
3. If strong gusts of wind blow against the microphone or if there is any source of loud noise nearby, the values measured by the microphone may
not correspond to actual values.
4. If the microphone is touching the belt during the measurement, the values measured by the microphone may not correspond to actual values
5. Do not take the measurement while the vehicle's engine is running.
<When using a tension gauge>
Use a belt tension gauge to check that the belt tension is within the standard value range.
<Belt deflection check>