Taurus AWD V6-3.5L (2009)
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Are the resistances less than 5 ohms?
Yes
GO to G4.
No
REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
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G4 CHECK FOR CORRECT SECM OPERATION
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Disconnect the SECM 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 SECM 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 SECM. 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 H: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
Communications Network
Pinpoint Tests
Pinpoint Test H: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 11, Grounds for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 13, Power Distribution/SJB for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Normal Operation
The Smart Junction Box (SJB) communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN). Circuits VDB06
(GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the SJB. The SJB shares the MS-CAN with the HVAC
module, the Accessory Protocol Interface Module (APIM), the Audio Control Module (ACM), the Driver Seat Module (DSM), the Rear Entertainment
Module (RETM), the Satellite Digital Audio Receiver System (SDARS) module, the Liftgate/Trunk Module (LTM) and the Instrument Cluster (IC).
Voltage for the SJB is provided by redundant circuits. Fuse 5 (10A) provides voltage, and circuit GD133 (BK) provides ground.
This pinpoint test is intended to diagnose the following:
