F 350 4WD Super Duty V8-5.4L (2009)
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C6 CHECK FOR CORRECT IC OPERATION
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Disconnect the IC 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 IC 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 IC. 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. CLEAR the DTCs. REPEAT the
network test with the scan tool.
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Pinpoint Test D: The Trailer Brake Control Module (TBC) Module Does Not Respond To The Scan
Tool
Communications Network
Pinpoint Tests
Pinpoint Test D: The Trailer Brake Control Module (TBC) Module Does Not Respond To The Scan Tool
Normal Operation
The Trailer Brake Control (TBC) module is optional equipment. The TBC module communicates with the scan tool through the High Speed Controller
Area Network (HS-CAN). Circuits VDB04 (WH/BU) (HS-CAN +) and VDB05 (WH) (HS-CAN -) provide the network connection to the TBC module.
Voltage for the TBC module is provided by circuits CBP33A (WH/BN) and SBB05 (GY/RD). Ground is provided by circuit GD115 (BK/GY).
This pinpoint test is intended to diagnose the following:
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Fuse
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Wiring, terminals or connectors
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TBC module
PINPOINT TEST D: THE TRAILER BRAKE CONTROL (TBC) 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.
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D1 CHECK THE TBC MODULE POWER SUPPLY CIRCUITS FOR AN OPEN
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Ignition OFF.
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Disconnect: TBC Module C2142.
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Ignition ON.
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Measure the voltage between the TBC module, harness side and ground as follows:
