Focus L4-2.0L (2009)
network test with the scan tool.
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Pinpoint Test H: The Front Display Interface Module (FDIM) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test H: The Front Display Interface Module (FDIM) Does Not Respond To The Scan Tool
Refer to Wiring Diagrams Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagrams Set 130, Audio System for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The Front Display Interface Module (FDIM) communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN). Circuits
VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the FDIM. Voltage to the FDIM is provided by
circuit SBP39 (WH/RD). Ground is provided by circuit GD134 (BK/VT).
This pinpoint test is intended to diagnose the following:
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Fuse
-
Wiring, terminals or connectors
-
FDIM
PINPOINT TEST H: THE FDIM DOES NOT RESPOND TO THE SCAN TOOL
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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H1 CHECK THE FDIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: FDIM C2123.
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Ignition ON.
-
Measure the voltage between the FDIM C2123-12, circuit SBP39 (WH/RD), harness side and ground.
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Is the voltage greater than 10 volts?
Yes
GO to H2.
No
VERIFY the SJB fuse 39 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the
circuit short. CLEAR the
DTCs. REPEAT the network test with the scan tool.
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H2 CHECK THE FDIM GROUND CIRCUIT FOR AN OPEN