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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Main Relay (Computer/Fuel System): Testing and Inspection

INSPECTION
1. Verify that the main relay clicks when turning the ignition switch OFF/ ON.
2. Apply battery positive voltage to terminal A and ground terminal B of the main relay.


View: Relay Test Connections And Specifications:





3. Use an ohmmeter to check continuity of the terminals as shown.
4. If not as specified, replace the main relay.