F 150 4WD V8-4.6L VIN 8 (2010)
REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
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U5 CHECK FOR CORRECT APIM OPERATION
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Disconnect the APIM 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 APIM 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 APIM. REFER to Accessories and Optional Equipment. 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.
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Pinpoint Test V: Intermittent No Medium Speed Controller Area Network (MS-CAN)
Communication, One Or More Modules Are Not Respo
Communications Network
Pinpoint Tests
Pinpoint Test V: Intermittent No Medium Speed Controller Area Network (MS-CAN) Communication, One Or More Modules Are Not
Responding During Network Test
Normal Operation
The Medium Speed Controller Area Network (MS-CAN) uses an unshielded twisted pair cable. Circuits VDB06 (GY/OG) and VDB07 (VT/OG)
provide the network connection to all modules on the network. In the event that 1 of the 2 network circuits (MS-CAN + or MS-CAN -) becomes open to
a module on the network, unreliable network communication to all modules on the network may result.
The following modules communicate with the scan tool using the MS-CAN:
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Accessory Protocol Interface Module (APIM)
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Audio Control Module (ACM)
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Audio Digital Signal Processing (DSP) module
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Driver Seat Module (DSM)
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Dual Climate Controlled Seat Module (DCSM)
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Front Controls Interface Module (FCIM)
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Front Display Interface Module (FDIM)
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Global Positioning System Module (GPSM)
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HVAC module
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Interior Lighting Control Module (ILCM)
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Instrument Cluster (IC)
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Parking Aid Module (PAM)
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Power Running Board (PRB) module
-
Smart Junction Box (SJB)
This pinpoint test is intended to diagnose the following:
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Wiring, terminals or connectors
