Navigator 4WD V8-5.4L (2010)
Y16 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE APIM DISCONNECTED
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Disconnect: APIM C3342.
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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 Y32.
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Y17 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE IC DISCONNECTED
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Disconnect: IC C220.
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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
If the vehicle is equipped with a Transmission Control Module (TCM), GO to Y18.
If the vehicle is not equipped with a TCM, REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs.
REPEAT the network test with the scan tool.
No
CONNECT the negative battery cable. GO to Y33.
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Y18 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TOGETHER WITH THE TCM DISCONNECTED
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Disconnect: TCM C1548.
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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.
