Explorer AWD V8-4.6L (2010)
PINPOINT TEST E: THE 4X4 CONTROL MODULE 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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E1 CHECK THE 4X4 CONTROL MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
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Ignition OFF.
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Disconnect: 4X4 Control Module C281a.
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Ignition ON.
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Measure the voltage between the 4X4 control module C281a-8, circuit CBP18 (GY/OG), harness side and ground.
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Are the voltages greater than 10 volts?
Yes
GO to E2.
No
VERIFY the Battery Junction Box (BJB) fuse 23 (20A) or fuse 26 (20A) is OK and the Smart Junction Box (SJB) fuse 18 (10A) 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. See: Diagrams/Electrical Diagrams/Diagrams By Number
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E2 CHECK THE 4X4 CONTROL MODULE GROUND CIRCUITS FOR AN OPEN
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Disconnect: 4X4 Control Module C281b.
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Measure the resistance between the 4X4 control module C281b-3, circuit GD145 (BK/BU), harness side and ground; and between the 4X4 control
module C281b-10, circuit GD138 (BK/WH), harness side and ground
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Are the resistances less than 5 ohms?
Yes
GO to E3.
No
