Mustang V8-4.6L (2009)
GO to K2.
No
REPAIR the DLC as necessary. CLEAR the DTCs. REPEAT the network test with the scan tool.
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K2 CHECK THE HS-CAN TERMINATION RESISTANCE
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Disconnect: Negative Battery Cable.
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Measure the resistance between the DLC C251-6, circuit 1827 (WH/LG), harness side and the DLC C251-14, circuit 1828 (PK/LG), harness side.
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Is the resistance between 54 and 66 ohms?
Yes
GO to K3.
No
GO to K5.
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K3 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO GROUND
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Measure the resistance between the DLC C251-6, circuit 1827 (WH/LG), harness side and ground; and between the DLC C251-14, circuit 1828
(PK/LG), harness side and ground.
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Are the resistances greater than 1,000 ohms?
Yes
CONNECT the negative battery cable. GO to K4.
No
GO to K15.
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K4 CHECK THE HS-CAN (+) AND HS-CAN (-) CIRCUITS FOR A SHORT TO VOLTAGE
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Ignition ON.
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Measure the voltage between the DLC C251-6, circuit 1827 (WH/LG), harness side and ground; and between the DLC C251-14, circuit 1828
(PK/LG), harness side and ground.
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Is the voltage greater than 6 volts?