FixVault

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
  • TCM-GCM serial link concern
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All See (1) - See (2)
(1) Install a new transaxle. Refer to the appropriate Automatic Transaxle/transmission article.
(2) Clear the transaxle control module (TCM) continuous DTCs. Repeat the self-test. If DTC P0A1A is present again, install a new transaxle. Refer to the appropriate Automatic Transaxle/transmission article.