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): Description and Operation

Relay Locations:

The ECU controls when voltage is allowed to flow to the B+ Latch Relay. This relay is energized once the engine has been started and remains energized until approximately 3 to 5 seconds after the engine has been shut off. It allows current to flow to the Idle Speed Actuator (ISA) Motor after the engine has been shut off. This current extends the ISA for the next start-up.