Taurus X AWD V6-3.5L (2009)
GO to N4.
No
REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
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N4 CHECK FOR CORRECT HVAC MODULE OPERATION
-
Disconnect all the HVAC module connectors.
-
Check for:
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corrosion
-
damaged pins
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pushed-out pins
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Connect all the HVAC module connectors and make sure they seat 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 HVAC 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 O: The Accessory Protocol Interface Module (APIM) Does Not Respond To The Scan
Tool
Communications Network
Pinpoint Tests
Pinpoint Test O: The Accessory Protocol Interface Module (APIM) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Normal Operation
The Accessory Protocol Interface Module (APIM) 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 APIM. Circuits VDB06 (GY/OG)
(MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the MS-CAN connection to the APIM. Voltage for the APIM is provided by circuit SBP03
(BU/RD). Circuit GD103 (BK/BU) provides ground.
The APIM shares the HS-CAN with the following modules:
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PCM
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Steering Effort Control Module (SECM)
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ABS module
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Occupant Classification System Module (OCSM)
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Restraints Control Module (RCM)
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4X4 control module
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Instrument Cluster (IC)
The APIM shares the MS-CAN with the following modules:
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Audio Control Module (ACM)
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Rear Entertainment Module (RETM)
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Driver Seat Module (DSM)
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HVAC module
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IC