Illumination

Illumination:

Power is supplied at all times:
^ through 10 A fuse (No. 22, located in the fuse block)
^ to lighting switch terminal (1).
The lighting switch must be in the 1ST or 2ND position for illumination.
The illumination control switch is a thumbwheel that controls the amount of current to the illumination system. As the amount of current increases, the illumination becomes brighter.

The glove box lamp is not controlled by the illumination control switch. The intensity of this lamp does not change.

The clock display (if equipped) will dim when the lighting switch is turned to the 1ST or 2ND position. The following chant shows the power and ground connector terminals for the components included in the illumination system.

With the exception of the glove box lamp, the ground for all of the components is controlled through terminals (3) and (6) of the illumination control switch and body grounds (M49), (M105) and (M160)

When the glove box is open, glove box lamp terminal (2) is grounded through glove box lamp switch and body grounds (M49), (M105) and (M160).