Table C No Communication With EBTCM

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(Part 2 Of 2):

CIRCUIT DESCRIPTION
The Class 2 serial data line allows all the modules on the line to transmit information to each over as needed. Each module is assigned an ID and all the information sent out on the line is assigned a priority by which it is received.

DIAGNOSTIC AIDS
It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction. An intermittent malfunction can be caused by poor connections, broken insulation, or a wire that is broken inside the insulation.

TABLE TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
3. Checks for a good ground.
5. Checks for voltage at terminal A.
7. Checks for voltage at terminal D.
9. Checks for voltage at terminal E.
11. Checks the Class 2 line for continuity between the EBTCM and the data link connector.