The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component
units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document,are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any
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© 2013 Mahindra & Mahindra Ltd.
MAN-00233
MAY 2013/Rev 1
WIRING MANUAL
25042013
ESSENTIAL ELECTRICAL CONCEPTS
VOLTAGE DROP
:
Voltage Drop:
Voltage drop indicates the voltage being used in that section of the circuit.
Voltage drop is one of the most useful tests you can perform. A voltage drop test isolates
voltage used in the portion of the circuit being tested.
A voltage drop test is done as follows:
1. Place the positive lead in the most positive section of the circuit you are testing.
2. Place the ground lead on the most negative section of the circuit you are testing.
3. Operate the circuit with the meter leads in place and note the reading.
Typical voltage drops are as follows:
•
Across a switch, relay contacts or connector: Less than 200 mV (< 0.2 V).
•
Across a section of the harness: Less than 200 mV (< 0.2 V).
•
Across the load: Approximately source voltage (> 12.4 V).
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