Fusion FWD L4-2.5L Hybrid (2010)
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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Pinpoint Test D: DTC U0140
Driver Door Module (DDM)
Pinpoint Tests
Pinpoint Test D: DTC U0140
Refer to Wiring Diagram Set 14 (Fusion/Milan/MKZ, Fusion Hybrid/Milan Hybrid), Module Communications Network for schematic and connector
information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The Driver Door Module (DDM) and the Smart Junction Box (SJB) communicate using the Medium Speed Controller Area Network (MS-CAN).
Messages are exchanged between the modules on the MS-CAN for the purposes of determining what functions are being carried out.
-
DTC U0140 (Lost Communication With Body Control Module (GEM)) - set by the DDM whenever it has lost communication to the SJB for 15
seconds or longer as long as the module voltage is between 10 and 15 volts.
This pinpoint test is intended to diagnose the following:
-
Module communication
-
DDM
-
SJB
PINPOINT TEST D: DTC U0140
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D1 VERIFY CUSTOMER CONCERN
-
Ignition ON.
-
Verify there is an observable symptom present.
-
Is an observable symptom present?
Yes
GO to D2.
No
The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
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D2 CHECK THE COMMUNICATION NETWORK
-
Ignition ON.
-
Enter the following diagnostic mode on the scan tool: Network Test.
-
Carry out the network test.
-
Does the SJB pass the network test?
Yes
