(1) Disconnect connector MC22 from
(2) Connect positive (+) multimeter lead
to socket in position 3 on connector
(3) Connect negative () multimeter lead
to known good ground.
(4) Turn ON ENGINE switch.
(a) If 22-28 vdc are not present, repair
brown wire (see schematic
(b) If 22-28 vdc are present, brown
wire is OK.
(5) Turn OFF ENGINE switch.
(6) Connect connector MC22.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.