Mariner 4WD L4-2.3L VIN Z (2005)
G8-G9
Normal Operation
The medium speed CAN has an unshielded twisted pair cable, circuits 1847 (WH/OG) and 1848 (PK/OG). The smart junction box (SJB) and the
instrument cluster are the only modules on the medium speed CAN. Total network resistance values must not be more than 5 ohms. If the resistance is
more than 5 ohms, there is an open in one of the medium speed CAN circuits, damage to the data link connector (DLC) C251, damage to one of the
network module connectors, or damage to an in-line connector. Since both the SJB and the instrument cluster share network termination
responsibilities, a problem in either of these modules can result in a medium speed CAN failure.
Possible Causes
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medium speed CAN circuits 1847 (WH/OG) and 1848 (PK/OG) shorted to ground or open
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SJB power circuit 1052 (TN/BK) open
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SJB ground circuit 570 (BK/WH) open
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DLC C251
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SJB
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instrument cluster
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battery junction box (BJB) fuse 19 (40A)
Test H: No High Speed Controller Area Network (CAN) Communication
PINPOINT TEST H: NO HIGH SPEED CONTROLLER AREA NETWORK (CAN) COMMUNICATION
H1-H2
