E 450 V8-5.4L (2009)
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Enter the following diagnostic mode on the scan tool: Network Test.
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Repeat the network test.
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Do all other modules pass the network test?
Yes
INSTALL the removed fuse. Go To Pinpoint Test F. See: Pinpoint Test F: The Smart Junction Box (SJB) Does Not Respond To The Scan Tool
No
INSTALL the removed fuse. GO to J8.
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J8 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IC DISABLED
NOTE: When re-running the network test, the network test application must be first closed or the screen display will revert back to the prior run network
test results.
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Disconnect: SJB Fuses 26 (10A) and 29 (5A).
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Enter the following diagnostic mode on the scan tool: Network Test.
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Repeat the network test.
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Do all other modules pass the network test?
Yes
INSTALL the removed fuses. Go To Pinpoint Test C. See: Pinpoint Test C: The Instrument Cluster (IC) Does Not Respond To The Scan Tool
No
INSTALL the removed fuse. An intermittent fault is not present. Go To Pinpoint Test I. See: Pinpoint Test I: No Medium Speed Controller Area
Network (MS-CAN) Communication, All Modules Are Not Responding
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J9 CHECK FOR CORRECT IN-DASH COMPUTER OPERATION
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Disconnect all of the in-dash computer connectors.
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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 all of the in-dash computer 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 in-dash computer. 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 K: No High Speed Controller Area Network (HS-CAN) Communication, All Modules
Are Not Responding
Communications Network
Pinpoint Tests
