Ranger 4WD V6-4.0L (2009)
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Disconnect: SJB Fuse 11 (10A).
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Inspect the fuse for an open.
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Is the fuse open (blown)?
Yes
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.
No
GO to D2.
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D2 CHECK THE SJB GROUND CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Disconnect: SJB C2280c.
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Measure the resistance between the SJB C2280c-1, circuit GD174 (BK/WH), harness side and ground.
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Is the resistance less than 5 ohms?
Yes
GO to D3.
No
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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D3 CHECK THE HS-CAN CIRCUITS BETWEEN THE SJB AND THE DLC FOR AN OPEN
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Disconnect: SJB C2280d.
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Measure the resistance between the SJB C2280d-20, circuit VDB04 (WH/BU), harness side and the Data Link Connector (DLC) C251-6, circuit
VDB04 (WH/BU), harness side.
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Measure the resistance between the SJB C2280d-21, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.