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DTC U1039: SCP (J1850) Invalid Or Missing Data For Vehicle Speed

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U1039 - SCP (J1850) INVALID OR MISSING DATA FOR VEHICLE SPEED

Description:  Network DTC(s) occur during module to module communication concerns.
Possible Causes: 
  • Invalid data network concerns - data is transferred within the normal inter-module message, but contains known invalid data. The transmitting module logs a DTC related to the invalid data concern.
  • Missing message network concerns - missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period.
Diagnostic Aids:  Check for other PCM DTCs or PCM related symptoms. Diagnose all other PCM DTCs or PCM related symptoms first.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST QA .
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