Mariner 2WD L4-2.5L (2009)
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Disconnect the ABS 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 ABS 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 ABS 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 C: The 4X4 Control Module Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test C: The 4X4 Control Module 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 34 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Four Wheel Drive Systems for schematic and connector information.
See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The 4X4 control module 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 network connection to the 4X4 control module. Voltage for the 4X4 control module is
provided by circuits CBP35 (YE/GY) and SBP11 (BU/RD). Ground is provided by circuit GD182 (BK/GY).
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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4X4 control module
PINPOINT TEST C: THE 4X4 CONTROL 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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C1 CHECK THE 4X4 CONTROL MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
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Ignition OFF.
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Disconnect: 4X4 Control Module C3184.
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Ignition ON.
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Measure the voltage between the 4X4 control module C3184-4, circuit CBP35 (YE/GY), harness side and ground; and between the 4X4 control
module C3184-5, circuit SBP11 (BU/RD), harness side and ground.