F 350 2WD Super Duty V8-6.4L DSL Turbo (2009)
-
pushed-out pins
-
Connect the TCM and make sure it seats correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new TCM. 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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T39 CHECK FOR CORRECT AHCM OPERATION
-
Disconnect all the AHCM connectors.
-
Check for:
-
corrosion
-
damaged pins
-
pushed-out pins
-
Connect all the AHCM connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new AHCM. 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 U: Intermittent No Medium Speed Controller Area Network (MS-CAN)
Communication, One Or More Modules Are Not Respo
Communications Network
Pinpoint Tests
Pinpoint Test U: Intermittent No Medium Speed Controller Area Network (MS-CAN) Communication, One Or More Modules Are Not
Responding During Network Test
Normal Operation
An open circuit VDB06 (GY/OG) (MS-CAN +) or VDB07 (VT/OG) (MS-CAN -) may cause intermittent or unreliable communication to all modules on
the Medium Speed Controller Area Network (MS-CAN). The MS-CAN is used for communication between the following modules:
This pinpoint test is intended to diagnose the following:
-
Accessory Protocol Interface Module (APIM)
-
Audio Control Module (ACM)
-
Circuit Deactivation Ignition Module (CDIM) (diesel engine only, if equipped)
-
Rear Entertainment Module (RETM)
-
Driver Seat Module (DSM)
-
HVAC module
-
Instrument Cluster (IC)
-
Satellite Digital Audio Receiver System (SDARS) module (if equipped)
-
Smart Junction Box (SJB)
In the event that either circuit VDB06 (GY/OG) or VDB07 (VT/OG) becomes open to any module on the network, unreliable network communication to
