Initial Inspection and Diagnostic Overview

1. Check all data line wiring (CKT 835) for an open or short to ground.
2. Check all serial data component connectors for proper terminal contact (CKT 835 terminal[S]) beginning with the suspect component.
3. Check all serial data components ground wiring for high resistance caused by poor terminal contact, Frayed wires etc.
4. Check all serial data components, beginning with suspect component.