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DTC P0A1A: Generator Control Module

P0A1A - GENERATOR CONTROL MODULE

Description:  This DTC indicates a generator control module (GCM) internal concern.
Possible Causes: 
  • GCM processor concern
  • GCM A/D converter concern
  • GCM supply voltage out of range
  • Transmission control module (TCM)-GCM serial link concern
Diagnostic Aids:  Clear the transaxle control module (TCM) continuous DTCs. Repeat the self-test. If the DTC is present again, install a new transaxle. Refer to the appropriate Automatic Transmission/Transaxle article.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.