Focus L4-2.0L (2009)
Yes
GO to I2.
No
VERIFY the SJB fuse 15 (10A) or fuse 37 (10A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams to identify
the possible causes of the circuit short. CLEAR the DTCs. REPEAT the network test with the scan tool.
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I2 CHECK THE HVAC MODULE 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 HVAC module C2357a-23, circuit GD138 (BK/WH), harness side and ground.
-
Is the resistance less than 5 ohms?
Yes
GO to I3.
No
REPAIR the circuit. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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I3 CHECK THE MS-CAN CIRCUITS BETWEEN THE HVAC MODULE AND THE DLC FOR AN OPEN
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Measure the resistance between the HVAC module C2357a-25, circuit VDB06 (GY/OG), harness side and the Data Link Connector (DLC)
C251-3, circuit VDB06 (GY/OG), harness side.
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Measure the resistance between the HVAC module C2357a-26, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07
(VT/OG), harness side.
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Are the resistances less than 5 ohms?
Yes
