Instrument Cluster / Carrier: Description and Operation

Illumination





Power is supplied at all times
^ through 15 A fuse (No. (66), located in the fuse and fusible link box)
^ to lighting switch terminal (11).
With the ignition switch in the ON or START position, power is supplied
^ through 10 A fuse [No. (13) , located in the fuse block (J/B)]
^ to combination meter terminal (37).
Then the illumination of odo/trip meter in combination meter turns on.
The lighting switch must be in the 1ST or 2ND position for illumination.
A variable resistor is built in the illumination control switch to control the amount of current to the illumination system.
The ashtray, clock and the glove box lamp are not controlled by the illumination control switch. The brightness of these lamps does not change.
The chart shows the power and ground connector terminals for the components included in the illumination system.
With the exception of the glove box lamp, clock illumination and the ashtray illumination, the ground for all of the components are controlled through terminals (2) and (3) of the illumination control switch and body grounds (M13), (M73), and (M111).
When the glove box is open, glove box lamp terminal (2) is grounded through the glove box lamp switch terminal (1) and body grounds (M13), M(73) and (M111).
The ashtray illumination terminal (2) and clock illumination terminal (1) are grounded directly through body grounds (M13), (M73) and (M111).