F 250 2WD Super Duty V10-6.8L (2009)
GO to I2.
No
VERIFY the Battery Junction Box (BJB) fuse 45 (30A) or the SJB fuse 12 (7.5A) is OK. If OK, REPAIR the circuit in question.
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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I2 CHECK THE DSM GROUND CIRCUITS FOR AN OPEN
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Ignition OFF.
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Measure the resistance between the DSM C341a-2, circuit GD179 (BK/VT), harness side and ground.
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Measure the resistance between the DSM C341b-24, circuit GD133 (BK), harness side and ground.
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Are the resistances less than 5 ohms?
Yes
GO to I3.
No
REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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I3 CHECK THE MS-CAN CIRCUITS BETWEEN THE DSM AND THE
DLC FOR AN OPEN
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Ignition OFF.
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Disconnect: DSM C341d.
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Measure the resistance between the DSM C341d-10, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG),
harness side.
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Measure the resistance between the DSM C341d-9, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG),
harness side.
