Flex AWD V6-3.5L (2009)
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Module communication
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SJB
PINPOINT TEST D: DTC U0155
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D1 VERIFY CUSTOMER CONCERN
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Ignition ON.
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Verify that there is an observable symptom present.
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Is an observable symptom present?
Yes
GO to D2.
No
The system is operating normally at this time. The DTC may have been set due to high network traffic or intermittent fault condition.
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D2 CHECK THE COMMUNICATION NETWORK
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Ignition ON.
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Enter the following diagnostic mode on the scan tool: Network Test.
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Carry out the network test.
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Does the SJB pass the network test?
Yes
GO to D3.
No
REFER to Information Bus.
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D3 RETRIEVE THE RECORDED DTCs FROM THE SELF-TEST
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Check for recorded SJB DTCs from the self-test.
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Is DTC B1317 or B1318 recorded?
Yes
For DTC B1317, Go To Pinpoint Test b. See: Smart Junction Box (SJB)/Pinpoint Test B: DTC B1317
For DTC B1318, Go To Pinpoint Test c. See: Smart Junction Box (SJB)/Pinpoint Test C: DTC B1318
No
GO to D4.
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D4 RECHECK THE SJB DTCs
NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during Programmable Module
Installation (PMI) or the PMI may not have been carried out.
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Clear the DTCs. Repeat the SJB self-test.
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Is DTC U0155 still present?
Yes
INSTALL a new SJB. REFER to Smart Junction Box (SJB) See: Power and Ground Distribution/Power Distribution Module/Service and Repair. TEST
the system for normal operation. REPEAT the SJB self-test.