TM 9-6115-729-24
0012
TROUBLESHOOTING USING MAINTENANCE SUPPORT DEVICE (MSD) AND ELECTRONIC TECHNICIAN
(ET) TOOL
The MSD is a military laptop computer that interfaces with the TQG via a Caterpillar Communications Adapter that
is connected to the engine wire harness and the GSC.
NOTE
The MSD must be configured to interface the GSC/ECM.
Software for Caterpillar Communication Adapter II should be preloaded into MSD. Refer to
Caterpillar Service Tool Hardware and Software/User's Manual Communication Adapter II,
Ver 1.93 (1.9-B4) and CD NEHS0758.
To configure MSD to interface GSC/ECM, perform the following procedure:
STEP 1.
On the EMCP, set Engine Control Switch (ECS) to OFF/RESET. Set the Battery Disconnect Switch
to OFF. Set the DEAD CRANK SWITCH to OFF.
STEP 2.
Connect data link cable between ECM to Electronic Modular Control Panel (EMCP) harness
connector CDC-P7 and communications adapter (Figure 1).
STEP 3.
Connect serial PC cable to MSD COM port. Connect power to the PC.
STEP 4.
Start and operate TQG per TM 9-6115-729-10.
