MarelliMotori MARK V Manuel Utilisateur page 31

#2 - VISUAL / MULTI-METER CHECKS
CHECK A Power resistor
Visual inspection
:
Verify that pins A and B are not damaged.
-
The resistor body must show no burns or mechanical damages.
-
Multi-meter check
:
1- In the multi-meter, select the resistance measurement mode.
2- Connect the multi-meter probes to pins A and B and check that the measured resistance is =
If the value is different (e.g. the value measured by the multi-meter is open or OL), the resistor is
damaged.
Check result
:
If the result of all the above checks is positive, tick the ok box in section #2 of the report form,
-
Check A.
Otherwise leave the box blank.
In case of component failure:
Possible effects on regulation
The alternator output voltage is lower than the rated voltage and equal to the residual one.
-
You cannot set the proper value using the VOLT trimmer.
Possible failure causes
Mechanical damage caused by impact/shock.
-
High level of vibrations.
-
Actions
:
Replace the AVR.
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963857121_M
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Mark V M16FA655A
EN
Marelli Motori
31