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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Finding Short Circuits



1. Use a digital or analog multimeter with a minimum 10k ohm resistance.
2. Remove the blown fuse and disconnect all loads for that circuit.

Finding A Short Circuit:





3. Connect a test lamp in place of the fuse.
4. Establish conditions that turn the test lamp on.
EXAMPLE
^ Ignition SW ON
^ Ignition SW ON and SW 1 ON
^ Ignition SW, SW 1 and Relay ON (connect the relay)
5. Connect and disconnect the components or connectors in the circuit while watching the test light.
^ The test light will come on when the shorted circuit or component is connected.
^ The test light will go off when the circuit or component is disconnected