gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Information Bus|Testing and Inspection > < Data Link Communications Circuit Description|Page 6118
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Information Bus: Description and Operation
Selectable Transfer Case Control Module (TCCM) Diagnostics

The selectable transfer case control module has limited self-diagnostic capabilities. If the TCCM diagnostics are not functioning properly follow
Obtaining Diagnostic Trouble Codes. Refer to Obtaining Diagnostic Trouble Codes.

10°C

Information Bus|Testing and Inspection > < Data Link Communications Circuit Description|Page 6118