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)

Or, hide this message: temporarily or permanently

Electrical Diagrams

Power and Ground:



Power, Grounding, Generator And MIL:



SP201:



Data Link Connector:



MAP, IAT, TPS And ECT Sensors:



Oxygen Sensors:



Vehicle Speed Sensor Signal:



Ignition Controls:



Fuel Injectors And Fuel Pump:



Fuel Level And Fuel Tank Pressure Sensors:



EGR Valve, EVAP And IAC Controls:



Secondary A.I.R. Pump Control:



A/C Compressor Controls:



Brake Switch Input:



Automatic Transmission Switch Inputs:



Automatic Transmission Valve Controls: