Flex FWD V6-3.5L (2010)
AE2 CHECK THE TBC MODULE OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
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Disconnect: TBC Module C2142.
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Measure the voltage between the trailer tow connector electric brake control supply pin, circuit CAT19 (BU), component side and ground.
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Is any voltage present?
Yes
REPAIR circuit CAT19 (BU) for a short to voltage. TEST the system for normal operation.
No
INSTALL a new TBC module. TEST the system for normal operation.
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AE3 CHECK THE TBC MODULE OUTPUT
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Set the gain on the TBC module to the maximum setting.
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While applying the brake pedal, measure the voltage between the trailer tow connector electric brake control supply pin, circuit CAT19 (BU),
component side and ground.
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Is the voltage greater than 10 volts?
Yes
The vehicle is operating correctly. SEND the trailer to an authorized camper/trailer repair facility.
No
GO to AE4.
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AE4 CHECK FOR VOLTAGE TO THE TRAILER TOW CONNECTOR
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Disconnect: Trailer Tow C4099.
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NOTE: Make sure the gain is set to the maximum setting.
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While applying the brake pedal, measure the voltage between the trailer tow C4099-3, circuit CAT19 (BU), harness side and ground.