Ranger 4WD V6-4.0L (2009)
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Repeat the network test.
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Do all other modules pass the network test?
Yes
CONNECT the RCM. Go To Pinpoint Test C. See: Pinpoint Test C: The Restraints Control Module (RCM) Does Not Respond To The Scan Tool
No
CONNECT the RCM. An intermittent fault is not present. Go To Pinpoint Test I. See: Pinpoint Test I: No High Speed Controller Area Network
(HS-CAN) Communication, All Modules Are Not Responding
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Pinpoint Test I: No High Speed Controller Area Network (HS-CAN) Communication, All Modules
Are Not Responding
Communications Network
Pinpoint Test
Pinpoint Test I: No High Speed Controller Area Network (HS-CAN) Communication, All Modules Are Not Responding
Refer to wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to wiring Diagram Set 25, Electronic Engine Controls - 3.5L for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Normal Operation
The High Speed Controller Area Network (HS-CAN) uses an unshielded twisted pair cable, circuits VDB04 (WH/BU) and VDB05 (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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PCM
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Restraints Control Module (RCM)
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Occupant Classification System Module (OCSM)
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4X4 control module
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Instrument Cluster (IC)
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Smart Junction Box (SJB)
PINPOINT TEST I: NO HS-CAN COMMUNICATION, ALL MODULES ARE NOT RESPONDING
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the Pinpoint
Test. See: Initial Inspection and Diagnostic Overview/Communications Network/Inspection and Verification
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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I1 CHECK THE DLC PINS FOR DAMAGE
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Inspect Data Link Connector (DLC) pins 6 and 14 for damage.