Explorer 4WD V6-4.0L (2009)
GO to Q38.
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Q38 VERIFY VEHICLE EQUIPMENT - PRB MODULE
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Inspect the vehicle for a PRB module.
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Is the vehicle equipped with a PRB module?
Yes
GO to Q39.
No
GO to Q40.
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Q39 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE PRB MODULE DISCONNECTED
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Disconnect: PRB Module C4322b.
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Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and ground; and between the DLC C251-11, circuit
VDB07 (VT/OG), harness side and ground.
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Are the resistances greater than 1,000 ohms?
Yes
CONNECT the negative battery cable. GO to Q51.
No
GO to Q40.
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Q40 VERIFY VEHICLE EQUIPMENT - PAM
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Inspect the vehicle for a PAM.
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Is the vehicle equipped with a PAM?
Yes
GO to Q41.
No
GO to Q42.
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Q41 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE PAM DISCONNECTED
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Disconnect: PAM C4014 (Mountaineer), C3267 (Explorer Sport Trac) or C4226 (Explorer).
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Measure the resistance between the DLC C251-3, circuit VDB06 (GY/OG), harness side and ground; and between the DLC C251-11, circuit
VDB07 (VT/OG), harness side and ground.
