Focus L4-2.0L (2009)
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corrosion
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damaged pins
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pushed-out pins
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Connect the FDIM connector and make sure it seats correctly.
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Operate the system and verify the concern is still present.
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Is the concern still present?
Yes
INSTALL a new FDIM. 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 HVAC Module Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test I: The HVAC Module Does Not Respond To The Scan Tool
Refer to Wiring Diagrams Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Normal Operation
The HVAC module communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN). Circuits VDB06 (GY/OG)
(MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the HVAC module. Voltage to the HVAC module is provided by
circuits SBP15 (WH/RD) and CBP37 (WH). Ground is provided by circuit GD138 (BK/WH).
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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HVAC module
PINPOINT TEST I: THE HVAC MODULE 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 HVAC MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
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Ignition OFF.
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Disconnect: HVAC Module C2357a.
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Ignition ON.
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Measure the voltage between the HVAC module C2357a-12, circuit CBP37 (WH), harness side and ground; and between the HVAC module
C2357a-13, circuit SBP15 (WH/RD), harness side and ground.
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Are the voltages greater than 10 volts?