Tribute 4WD L4-2.5L Hybrid (2009)
simultaneously when a problem or fault has been detected in any of the 3 modules (PCM, TCM or BCM).
If the hazard status message is missing from the PCM or if the data is deemed invalid by the instrument cluster for more than 5 seconds, the instrument
cluster sets DTC U0100 in continuous memory. If the hazard status message is missing from the TCM or if the data is deemed invalid by the instrument
cluster for more than 5 seconds, the instrument cluster sets DTC U0101 in continuous memory. If the hazard status message is missing from the BCM or
if the data is deemed invalid by the instrument cluster for more than 5 seconds, the instrument cluster sets DTC U0111 in continuous memory.If any one
of the 3 messages are missing with the other two valid, the instrument cluster defaults the STOP SAFELY NOW warning to the last observable state (on
or off). If all 3 messages are missing and the instrument cluster does not see an ignition switch transition into RUN/START, the instrument cluster
defaults the STOP SAFELY NOW warning to the last observable state (on or off).
Possible Causes
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PCM concern
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TCM concern
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BCM concern
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Instrument cluster
Diagnostic Procedure