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DTC P1A08: Generator Mode Signal

DTC P1A08: GENERATOR MODE SIGNAL

Description:  The TCM continuously monitors the controller area network (CAN) communication bus for a generator mode message from the PCM. This DTC sets when the received message does not match the actual generator mode.
Possible Causes: 
  • Damaged TCM
Diagnostic Aids:  Verify the SOBDMC is at the latest calibration level. Clear the SOBDMC DTCs. Repeat the self-test. If the DTC is retrieved again, install a new TCM. Refer to the appropriate Automatic Transmission article. Refer to FLASH ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY (EEPROM) , Programming the TRID Block for a Replacement TCM.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
Refer to the appropriate articles related to the description, possible causes and diagnostic aids.