Fusion FWD V6-3.0L (2009)
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Verify that pinpoint test QA has been carried out.
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Has pinpoint test QA been carried out?
Yes
GO to A3.
No
REFER to Computers and Control Systems Information, Pinpoint Tests, pinpoint test QA to diagnose no communication with the PCM.
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A3 CHECK THE HS-CAN TERMINATION RESISTANCE
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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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 between 54 and 66 ohms?
Yes
CONNECT the negative battery cable. GO to A5.
No
GO to A4.
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A4 CHECK THE HS-CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN
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Disconnect: PCM C175b.
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Measure the resistance between the PCM C175b-2, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU),
harness side.
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Measure the resistance between the PCM C175b-3, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side.
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Are the resistances less than 5 ohms?
Yes
