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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System Diagram



ENGINE CONTROLS SCHEMATICS

Module Power, Ground, Serial Data, and MIL







5-Volt 1 and Low Reference Bus







5-Volt 2, 5-Volt 3, and Low Reference Busses







Engine Data Sensors - Pressure, Temperature, and Throttle Controls







Engine Data Sensors - Oxygen Sensors







Ignition Controls - Bank 1 Ignition System







Ignition Controls - Bank 2 Ignition System







Ignition Controls - CKP/CMP/KS Sensors and CMP Actuator Solenoids







Fuel Controls - Fuel Injectors







Fuel Controls - Fuel Pump Flow Control







Fuel Controls - EVAP Controls







Subsystem References








Locations: The locations for the Connectors, Grounds, Splices, and Grommets shown within these diagrams can be found via their numbers at Vehicle Locations. Locations