F 150 4WD V8-4.6L VIN 8 (2010)
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Measure the resistance between the TCM C1575-2, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side.
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Are the resistances less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to H4.
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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H4 CHECK FOR CORRECT TCM OPERATION
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Disconnect the TCM connector.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect the TCM connector and make sure it seats correctly.
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Operate the system and verify the concern is still present.
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Is the concern still present?
Yes
INSTALL a new TCM. REFER to Automatic Transmission/Transaxle &/or Transmission Control Systems. CLEAR the DTCs. REPEAT the network
test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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Pinpoint Test I: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test I: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 13, Power Distribution/SJB for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number