(1) While assistant turns ON ENGINE
switch and turns on lights, observe
rear and rear side marker lights
(a) If there are no rear or rear side
markers lights operating, perform
Steps (2) and (3) below and repair
wire 1012B (see schematic, Fig
FO-1.1) or replace trailer main wire
harness (Para 4-30.1).
(b) If at least one rear or rear side
marker light operates, perform
Steps (2) and (3) below and go to
Step 2 of this Fault.
(2) Turn off lights.
(3) Turn OFF ENGINE switch.