Isuzu 4hl1 Ecu Pinout Link _verified_

: Connected via the Main Relay (Pin 113) and Starter Switch (Pins 109, 90) to provide 24V power to the unit.

For a more detailed and visual representation of the Isuzu 4HL1 ECU pinout, you can refer to the following resources: isuzu 4hl1 ecu pinout link

CKP (Crankshaft Position) Sensor High/Low and Cylinder Identification signals. Power & Ground: : Connected via the Main Relay (Pin 113)