Operation CHARM: Car repair manuals for everyone.

Instrument Cluster / Carrier: Description and Operation

Circuit Description

Battery voltage is applied at all times to the coil and contacts of the tail lamp relay from the BATT fusible link. With the light switch (multifunction switch) in the PARK or HEAD position, ground is provided to the tail lamp relay coil through the light switch

Battery voltage from fuse 9 and fuse 14 is then provided to the illumination lamps through the closed contact of the tail lamp relay. Ground is provided to the illumination lamps through the rheostat. The rheostat controls brightness of the illumination lamps.