John Deere 4045 / 6068 — Install Wiring Harness for Engine Mount ECU
Installation · Engine mount ECU harness
For the John Deere 4045 / 6068, from the John Deere service manual.
Applies to: John Deere 4045, John Deere 6068
Procedure
- Route and connect engine harness at engine left, rear side: install ECU connector (A); connect fuel rail pressure sensor (B); attach harness to ECU bracket (D); insert harness clip (E).
- Route and connect harness at left, front side: connect coolant temperature sensor; connect oil pressure sensor; insert harness clip; connect suction control valve, fuel temperature sensor, pump positi
- Connect engine crankshaft sensor (A) and attach wiring harness to engine front plate (B).
- Route and connect engine harness at right, rear side: connect fuel injector connector; connect MAT sensor; connect fuel pressure sensor option; connect air heater connector; insert clips.
- Route and connect harness at right, front side: connect alternator excitation connector; attach harness to rocker arm cover.
- Connect water-in-fuel sensor (A).
Full service-parts list: John Deere 4045 →, John Deere 6068 →
Source: John Deere service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.