Pinpoint Test B : The Secondary On-Board Diagnostic Control Module (SOBDMC) (Transmission Control Module (TCM)) Does Not Respond To The Diagnostic Scan Tool: Notes
WARNING: This page is about a different variant/trim than selected.
Refer to MODULE COMMUNICATIONS NETWORK for schematic and connector information.
Refer to Transmission Controls for schematic and connector information.
Normal Operation and Fault Conditions
The SOBDMC/ TCM communicates with the diagnostic scan tool through the HS-CAN1.
Possible Sources
- Fuse
- Wiring, terminals and connector
- SOBDMC
Visual Inspection and Diagnostic Pre-checks
Verify BJB fuses 18 (10A), 21 (15A) and 51 (15A) are OK.