F 150 4WD V8-4.6L VIN 8 (2010)
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Pinpoint Test N: The Front Display Interface Module (FDIM) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 130, Audio System/Navigation 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).
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
FDIM
PINPOINT TEST N: 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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N1 CHECK THE FDIM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
-
Ignition OFF.
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Disconnect: FDIM C2123.
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Ignition ON.
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Measure the voltage between the FDIM C2123-12, circuit SBP26 (YE/RD), harness side and ground.
-
Is the voltage greater than 10 volts?
Yes
GO to N2.
No
VERIFY the Smart Junction Box (SJB) fuse 26 (10A) 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. See: Diagrams/Electrical Diagrams/Diagrams By
Number
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N2 CHECK THE FDIM GROUND CIRCUIT FOR AN OPEN
-
Ignition OFF.
-
Disconnect: Negative Battery Cable.