Escape 4WD L4-2.5L (2010)
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Pinpoint Test C: The Instrument Cluster (IC) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test C: The Instrument Cluster (IC) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 14 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Module Communications Network for schematic and connector
information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 60 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Instrument Cluster for schematic and connector information. See:
Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The Instrument Cluster (IC) communicates with the scan tool and with other modules through the High Speed Controller Area Network (HS-CAN). The
IC does not communicate with the scan tool through the Medium Speed Controller Area Network (MS-CAN).
This pinpoint test is intended to diagnose the following:
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Fuse(s)
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Wiring, terminals or connectors
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IC
PINPOINT TEST C: THE IC 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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C1 CHECK THE HS-CAN TERMINATION RESISTANCE
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Ignition OFF.
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Disconnect: Negative Battery Cable .
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Disconnect the scan tool cable from the Data Link Connector (DLC).
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Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit 1828 (PK/LG), harness
side.
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Is the resistance between 54 and 66 ohms?
Yes
GO to C3.
No
GO to C2.
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C2 CHECK THE HS-CAN CIRCUITS BETWEEN THE IC AND THE DLC FOR AN OPEN
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Disconnect: IC C220 .
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Measure the resistance between the IC C220-15, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness
side.