Explorer Sport Trac 2WD V6-4.0L (2009)
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Are the voltages greater than 10 volts?
Yes
GO to H3.
No
VERIFY the Smart Junction Box (SJB) fuse 2 (5A) is OK. If OK, GO to H2. 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 SJB VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Disconnect: SJB C2280e.
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Measure the voltage between the SJB C2280e-1, circuit SBB03 (BU/RD), harness side and ground.
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Is the voltage greater than 10 volts?
Yes
GO to H5.
No
VERIFY the Battery Junction Box (BJB) fuse 3 (50A) 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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H3 CHECK THE SJB GROUND CIRCUIT FOR AN OPEN
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Disconnect: Negative Battery Cable.
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Disconnect: SJB C2280e.
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Measure the resistance between the SJB C2280e-22, circuit GD108 (BK/VT), harness side and ground.
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Is the resistance less than 5 ohms?
Yes
GO to H4.
