F 250 4WD Super Duty V8-5.4L (2009)
-
Disconnect all the 4X4 control module connectors.
-
Check for:
-
corrosion
-
damaged pins
-
pushed-out pins
-
Connect all the 4X4 control module 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 4X4 control 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.
-------------------------------------------------
Pinpoint Test S: Intermittent No High Speed Controller Area Network (HS-CAN) Communication,
One Or More Modules Are Not Respond
Communications Network
Pinpoint Tests
Pinpoint Test S: Intermittent No High Speed Controller Area Network (HS-CAN) Communication, One Or More Modules Are Not Responding
During Network Test
Normal Operation
An open in circuit VDB04 (WH/BU) (HS-CAN +) or VDB05 (WH) (HS-CAN -) may cause intermittent or unreliable communication to all modules on
the High Speed Controller Area Network (HS-CAN). The HS-CAN is used for communication between the following modules:
-
ABS module
-
Accessory Protocol Interface Module (APIM) (if equipped)
-
Trailer Brake Control (TBC) module (if equipped)
-
PCM
-
Restraints Control Module (RCM)
-
Auxiliary Heater Control Module (AHCM) (diesel engine only, if equipped)
-
Transmission Control Module (TCM) (diesel engine only, if equipped)
-
Electronic Variable Response Turbocharger (EVRT) actuator (diesel engine only)
-
Instrument Cluster (IC)
In the event that either circuit VDB04 (WH/BU) or VDB05 (WH) become open to any module on the network, unreliable network communication to all
modules on the network may result.
This pinpoint test is intended to diagnose the following:
-
Wiring, terminals or connectors
PINPOINT TEST S: INTERMITTENT NO HIGH SPEED CONTROLLER AREA NETWORK (HS-CAN) COMMUNICATION, ONE OR
MORE MODULES ARE NOT RESPONDING DURING NETWORK TEST
NOTE: Various modules will set network DTCs during this test procedure. Clear DTCs from all modules after the diagnostic procedure is completed.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.
-------------------------------------------------
S1 CHECK THE DLC PINS FOR DAMAGE
-
Ignition OFF.
-
Disconnect the scan tool cable from the Data Link Connector (DLC).