Ford Corsar Repair Manual page 857

INTERIOR LAMP
-
; ; ;
\
M
Test,lamp (
3 8 w i h T L q
Dark
4 1 2 5
Test lamp Bright
(38W)
\"l' , H
SE
L987K
Illumination Control Unit Check (GHIA Model)
Connect as shown in figure at left.
If test lamp darkens when connecting terminal
@
to battery
0
terminal, and if test lamp brightens when connecting
terminal
@
to battery terminal, illumination control unit is
normal.