Operation CHARM: Car repair manuals for everyone.

Connector Views



Component Connector End Views

Engine Control Module (ECM) X1 (4.3L)









Engine Control Module (ECM) X1 (4.3L) (Pin 1 To 27):





Engine Control Module (ECM) X1 (4.3L) (Pin 28 To 73):






Engine Control Module (ECM) X2 (4.3L)









Engine Control Module (ECM) X2 (4.3L) (Pin 1 To 53):





Engine Control Module (ECM) X2 (4.3L) (Pin 54 To 73):