Mustang V8-4.6L (2009)
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Is the resistance less than 5 ohms?
Yes
REPAIR the circuit. CONNECT all modules. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
CONNECT all modules. CONNECT the negative battery cable. GO to I24.
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I16 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE SJB DISCONNECTED
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Disconnect: SJB C2280b.
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Measure the resistance between the DLC C251-3, circuit 1847 (WH/OG), harness side and ground; and between the DLC C251-11, circuit 1848
(PK/OG), harness side and ground.
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Are the resistances greater than 1,000 ohms?
Yes
CONNECT the negative battery cable. GO to I21.
No
GO to I17.
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I17 CHECK THE MS-CAN (+) AND MS-CAN (-) CIRCUITS FOR A SHORT TO GROUND WITH THE IC DISCONNECTED
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Disconnect: IC C220.
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Measure the resistance between the DLC C251-3, circuit 1847 (WH/OG), harness side and ground; and between the DLC C251-11, circuit 1848
(PK/OG), harness side and ground.
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Are the resistances greater than 1,000 ohms?
Yes
CONNECT all modules. CONNECT the negative battery cable. GO to I22.
No
GO to I18.
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I18 VERIFY VEHICLE EQUIPMENT - SDARS MODULE
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Inspect the vehicle for a Satellite Digital Audio Receiver System (SDARS) module.