DTC U0402 - Invalid Data Received From TCM

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U0402 - INVALID DATA RECEIVED FROM TCM

Description:	Network DTC concerns occur during module to module communication.
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. Check for transmission control module (TCM) DTCs or TCM related symptoms. Diagnose all other TCM DTCs or TCM related symptoms first.
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All	GO to PINPOINT TEST AE .