John Deere – 1023E, 1025R and 1026R – Power Circuit Diagnosis 1023E and 1025R

Unswitched Power Circuit

CONDITIONS:
– Machine parked, park brake locked
– PTO disengaged
– Transmission in NEUTRAL
– Key switch to OFF
– Voltmeter (—) lead to battery negative post
– Voltmeter (+) lead to designated test point

Refer to, Power Circuit – 1023E , or Power Circuit – 1025R for circuit schematics.

Switched Power Circuit

CONDITIONS:
– Machine parked, park brake locked
– PTO disengaged
– Transmission in NEUTRAL
– Unswitched Power Circuit tested and functional
– Key switch to ON, engine not running
– Voltmeter (—) lead to battery negative post
– Voltmeter (+) lead to designated test point