F 550 4WD Super Duty V10-6.8L (2009)
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H6 CHECK FOR CORRECT TBC MODULE OPERATION
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Check the TBC module connector for:
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corrosion.
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pushed-out pins.
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spread terminals.
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Connect the TBC module connector and make sure that it is seated 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 TBC module. REFER to Trailer Brake Control (TBC) Module See: Service and Repair. CLEAR the DTCs. REPEAT the self-test.
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
self-test.
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