gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Relays and Modules - Wiper and Washer Systems > < TCCM Power and Ground|Page 240
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Selector Switch Status Lamp Schematic

OPERATION

The Transfer Case Control Module (TCCM) controls the operation of the 4HI and 4LO status lamps in the transfer case selector switch. The status
lamps also show the transfer case mode and range of operation. 

Relays and Modules - Wiper and Washer Systems > < TCCM Power and Ground|Page 240