Pinpoint Test Am : The Direct Current/Direct Current (Dc/Dc) Converter Control Module Does Not Respond To The Diagnostic Scan Tool: Notes
WARNING: This page is about a different car, the 2016 Lincoln MKZ. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Charging System for schematic and connector information.
Refer to Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The Direct Current/Direct Current (DC/DC) Converter Control Module communicates with the diagnostic scan tool through the HS-CAN1.
Possible Sources
- Fuse
- Wiring, terminals and connectors
- Direct Current/Direct Current (DC/DC) Converter Control Module
Visual Inspection and Diagnostic Pre-checks
- Verify high current BJB MEGA fuse 8 (175A) and BCM fuse 14 (10A) is OK.
- Diagnose all Diagnostic Trouble Codes (DTCs) set in the BECM, PCM and SOBDMC first. Diagnostic Trouble Codes (DTCs) set in these modules can cause the vehicle to disable the DC/DC wakeup circuit, keeping the DC/DC converter control module disabled.