Expedition 2WD V8-5.4L (2009)
X21 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE ABS MODULE DISCONNECTED
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Disconnect: ABS Module C135.
-
Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit
VDB05 (WH), harness side and ground.
-
Is the resistance less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to X29.
No
If the vehicle is equipped with a 4X4 control module, GO to X22.
If the vehicle is not equipped with a 4X4 control module, GO to X23.
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X22 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE 4X4 CONTROL MODULE
DISCONNECTED
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Disconnect: 4X4 Control Module C281a.
-
Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit
VDB05 (WH), harness side and ground.
-
Is the resistance less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to X30.
No
GO to X23.
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X23 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE RCM DISCONNECTED
-
Disconnect: RCM C310b.
-
Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and ground; and between the DLC C251-14, circuit
VDB05 (WH), harness side and ground.
-
Is the resistance less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to X31.
