Fusion FWD V6-3.0L (2009)
PINPOINT TEST O: THE DSM DOES NOT RESPOND TO THE SCAN TOOL
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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O1 CHECK THE DSM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: DSM C3299c.
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Ignition ON.
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Measure the voltage between the DSM C3299c-1, circuit SBB15 (WH/RD), harness side and ground.
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Is the voltage greater than 10 volts?
Yes
GO to O2.
No
VERIFY the Battery Junction Box (BJB) fuse 15 (10A) is OK. If OK, REPAIR the circuit. CLEAR the DTCs. REPEAT the network test with the scan
tool. If not OK, REFER to the Wiring Diagrams to identify the possible cause of the circuit short.
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O2 CHECK THE DSM GROUND CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Measure the resistance between the DSM C3299c-13, circuit GD126 (BK/WH), harness side and ground.
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Is the resistance less than 5 ohms?
Yes
GO to O3.
No
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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O3 CHECK THE MS-CAN CIRCUITS BETWEEN THE DSM AND THE DLC FOR AN OPEN
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Measure the resistance between the DSM C3299c-11, circuit VDB06 (GY/OG), harness side and the Data Link Connector (DLC) C251-3, circuit
VDB06 (GY/OG), harness side.
