Mariner 2WD L4-2.5L (2009)
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Are the resistances less than 5 ohms?
Yes
CONNECT the negative battery cable. GO to C4.
No
REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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C4 CHECK FOR CORRECT 4X4 CONTROL MODULE OPERATION
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Disconnect the 4X4 control module connector.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect the 4X4 control module 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 4X4 control module. 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 D: The Instrument Cluster (IC) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test D: 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 through the High Speed Controller Area Network (HS-CAN). Circuits VDB04 (WH/BU)
(HS-CAN +) and VDB05 (WH) (HS-CAN -) provide the HS-CAN connection to the IC and circuits VDB06 (GY/OG) (MS-CAN +) and VDB07
(VT/OG) (MS-CAN -) provide the Medium Speed Controller Area Network (MS-CAN) connection to the IC. Voltage for the IC is provided by circuits
CBP29 (WH/VT), and SBP26 (YE/RD). Circuits GD112 (BK/GN) and GD114 (BK/BU) provide ground.
This pinpoint test is intended to diagnose the following:
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Fuse
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Wiring, terminals or connectors