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

Part 1



Component Connector End Views

Accelerator Pedal Position (APP) Sensor





Camshaft Position (CMP) Actuator Solenoid Exhaust Bank 1 (LY7)





Camshaft Position (CMP) Actuator Solenoid Intake Bank 1 (LY7)





Camshaft Position (CMP) Actuator Solenoid Exhaust Bank 2 (LY7)





Camshaft Position (CMP) Actuator Solenoid Intake Bank 2 (LY7)





Camshaft Position (CMP) Sensor (L26)





Camshaft Position (CMP) Sensor (LS4)





Camshaft Position (CMP) Sensor Bank 1 Exhaust (LY7)





Camshaft Position (CMP) Sensor Bank 1 Intake (LY7)





Camshaft Position (CMP) Sensor Bank 2 Exhaust (LY7)





Camshaft Position (CMP) Sensor Bank 2 Intake (LY7)





Crankshaft Position (CKP) Sensor (L26)





Crankshaft Position (CKP) Sensor (LS4)





Crankshaft Position (CKP) Sensor (LY7)













Data Link Connector (DLC)





Engine Control Module (ECM) X1 (LS4)








Engine Control Module (ECM) X1 (LY7)








Engine Control Module (ECM) X2 (LS4)








Engine Control Module (ECM) X2 (LY7)








Engine Control Module (ECM) X3 (LS4)








Engine Coolant Temperature (ECT) Sensor (L26)





Engine Coolant Temperature (ECT) Sensor (LS4)





Engine Coolant Temperature (ECT) Sensor (LY7)