Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Ground Voltage Drop Test


Fig. 3 Ground Voltage Drop Test:






1. Connect voltmeter between battery ground terminal and starter case end bracket, Fig. 3.
2. Voltage reading when starter is operated should be near zero.
3. Total voltage drop in starter circuit must not exceed 0.5 volts. If reading is high, clean and tighten all ground connections and check condition of ground strap.