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AUXILIARY Transmission Fluid Pump Performance

The Transmission Control Module (TCM) monitors the Auxiliary Transmission Fluid Pump Control Circuit. The TCM sets the OBDII code when the Auxiliary Transmission Fluid Pump Control Circuit signal is out of factory specifications.

Cause:
Faulty Auxiliary Transmission Fluid Pump
Auxiliary Transmission Fluid Pump harness is open or shorted
Auxiliary Transmission Fluid Pump circuit poor electrical connection

Symptoms:
Check engine light