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DTC P0A1B: Drive Motor A Control Module

P0A1B - DRIVE MOTOR A CONTROL MODULE

Description:  This DTC indicates a drive motor A control module (MCM) internal concern.
Possible Causes: 
  • MCM processor concern
  • MCM A/D converter concern
  • MCM supply voltage out of range
  • TCM-MCM 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.