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Check the generator output voltage drop
This check is needed to assess the condition of the wiring on the output "B" of the generator to the (+) terminal of the battery (including the fuse box).
Preparing for inspection 1. Turn the ignition switch to ?�OFF?�.
NOTE To determine the exact fault in the joints, make sure that if the test is not disturbed by the two pins or connections. |
2. Connect the digital voltmeter to the "B" of the generator and the (+) terminal of the battery. Connect (+) wire of the voltmeter to the "B" of the generator, and the (-) voltmeter - to the (+) terminal of the battery.
Test condition Read the voltmeter when idling the engine and turned on the load on the generator (headlights, heater fan, etc.).
Analysis of the results Normally, the voltmeter should show the nominal voltage of 0.3 V. If the voltage drop greater than 0.3 V, the most likely cause is a defect in the wiring.
Check the wiring of the output "B" of the generator through the fuse-link to the (+) terminal of the battery (Fig. 7.10). Check the insulation of wires (no signs of overheating), and a contact in the connectors. Eliminate defects, then recheck. After the scan, turn off all consumers (headlights, heater fan, etc.), then switch off the ignition.
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