E 450 V8-5.4L (2009)
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Is the resistance less than 5 ohms?
Yes
GO to K11.
No
GO to K10.
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K10 CHECK THE HS-CAN CIRCUITS FOR AN OPEN AT THE DLC
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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 greater than 10,000 ohms?
Yes
REPAIR the DLC or REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan
tool.
No
A capacitor internal to a module may still be draining causing irregular resistance readings. WAIT 5 minutes. REPEAT the pinpoint test.
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K11 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER
WITH THE PCM DISCONNECTED
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Disconnect: PCM C175b or C1381b.
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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 a telematics module, GO to K12. If the vehicle is not equipped with a telematics module, GO to K13.
No
CONNECT the negative battery cable. GO to K23.
