F 150 4WD V8-4.6L VIN 8 (2010)
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Is the resistance less than 5 ohms?
Yes
If the vehicle is equipped with a Trailer Brake Control (TBC) module, GO to Y16.
If the vehicle is not equipped with a TBC module, GO to Y17.
No
CONNECT the negative battery cable. GO to Y35.
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Y16 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE TBC MODULE DISCONNECTED
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Disconnect: TBC Module C2142.
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Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
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Is the resistance less than 5 ohms?
Yes
GO to Y17.
No
CONNECT the negative battery cable. GO to Y36.
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Y17 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE OCSM DISCONNECTED
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Disconnect: Occupant Classification System Module (OCSM) C3159.
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Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness
side.
-
Is the resistance less than 5 ohms?
Yes
If the vehicle is equipped with an Accessory Protocol Interface Module (APIM), GO to Y18.
If the vehicle is not equipped with an APIM, GO to Y19.
