(1) Set multimeter select switch
to volts dc.
(2) Connect positive (+) multimeter lead
at main junction box terminal 9.
(3) Connect negative () multimeter lead
to a known good ground.
(4) Turn ON ENGINE switch
(a) If there are not 22 to 28 vdc
present, perform Step (5) below
and go to Step 1 of Fault 4 of this
(b) If there are 22 to 28 vdc present,
components supplying input
voltage to main junction box,
terminal 9 are OK.
(5) Turn OFF ENGINE switch.
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.