Milan FWD L4-2.5L (2010)
INSTALL a new 4X4 control module. REFER to Transfer Case. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
network test with the scan tool.
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Pinpoint Test I: The Headlamp Control Module (HCM) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test I: The Headlamp Control Module (HCM) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 14 (Fusion/Milan/MKZ, Fusion Hybrid/Milan Hybrid), Module Communications Network for schematic and connector
information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 85 (Fusion/Milan/MKZ, Fusion Hybrid/Milan Hybrid), Headlamps/Autolamps for schematic and connector information.
See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The Headlamp Control Module (HCM) communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).
This pinpoint test is intended to diagnose the following:
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Fuse
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Wiring, terminals or connectors
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HCM
PINPOINT TEST I: THE HCM 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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I1 CHECK THE HCM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: HCM C1600 .
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Ignition ON.
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Measure the voltage between the HCM C1600-10, circuit CBP42 (GN), harness side and ground.
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Is the voltage greater than 10 volts?