(1) Disconnect connector MC50.
(2) Is there continuity between MC50,
terminal E and relay R22, terminal 85?
(a) If there is no continuity, repair
wire 231 (see schematic FO-1)
or notify DS Maintenance.
(b) If there is continuity, perform
Step (3) below and go to
Step 13 of this Fault.
(3) Connect connector MC50.
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.
Circuit breakers and relays are always electrically hot and can cause severe injury to personnel. Care
must be exercised when working under the electrical circuit board cover.
Relay test must be performed with relay