F 350 2WD Super Duty V10-6.8L (2009)
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Ignition ON.
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Using the scan tool, clear the DTCs.
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Ignition OFF.
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Ignition ON.
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Enter the following diagnostic mode on the scan tool: Self Test - TBC Module.
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Retrieve and record the DTCs.
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Did DTC C2800 or C2801 return?
Yes
For DTC C2800, INSPECT the brake master cylinder for the presence of a brake pressure transducer. If a transducer is present, GO to D2. If a
transducer is not present, GO to D10.
For DTC C2801, GO to D6.
No
If other DTCs are retrieved, GO to the Trailer Brake Control (TBC) Module DTC Chart. See: Diagnostic Trouble Code Descriptions
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D2 ISOLATE THE BRAKE PRESSURE TRANSDUCER
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Using the scan tool, clear the DTCs.
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Ignition OFF.
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Disconnect: Brake Pressure Transducer C147.
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NOTE: Do not press the brake pedal during this step. Pressing the brake pedal will cause a different DTC to set.
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Connect a fused jumper wire between brake pressure transducer C147-2, circuit VCA13 (YE/BU), harness side and brake pressure transducer
C147-1, circuit RCA16 (BU/BN), harness side.
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Ignition ON.
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Enter the following diagnostic mode on the scan tool: Self Test - TBC Module.
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Retrieve and record the TBC module DTCs.
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Is DTC C2801 present?
Yes
CHECK the brake pressure transducer connector for corrosion, pushed-out pins and spread terminals. REPAIR the brake pressure transducer connector
as necessary. If the connector is OK, INSTALL a new brake pressure transducer. Make sure to LUBRICATE the O-ring seal with clean, specified brake
fluid before installation. CLEAR the DTCs. REPEAT the self-test.
No
GO to D3.
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D3 CHECK THE BRAKE PRESSURE TRANSDUCER SENSE CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: TBC Module C2142.
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Measure the resistance between TBC module C2142-5, circuit VCA13 (YE/BU), harness side and brake pressure transducer C147-2, circuit
VCA13 (YE/BU), harness side.
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Is the resistance less than 5 ohms?
Yes
GO to D4.
No
