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Home >> Lexus >> 2009 >> GS 450h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0AE6-225 - U0424-537)) >> Hybrid Control System >> DTC P2797-865: Auxiliary Transmission Fluid Pump Control Performance >> Description

DTC P2797-865: Auxiliary Transmission Fluid Pump Control Performance: Description

The oil pump motor controller controls the rotation speed of the oil pump motor (three-phase brushless motor) in accordance with rotation speed request signals sent from the hybrid vehicle control ECU. The controller also outputs the oil pump motor status as a signal to the hybrid vehicle control ECU.

Fig 1: Identifying Oil Pump Motor Controller Diagram
GTY125269Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC No. INF Code DTC Detection Condition Trouble Area
P2797 865 The hybrid vehicle control ECU receives signals that indicate an abnormal condition of components (such as the oil pump motor controller or oil pump motor) from the oil pump motor controller.
  • Hybrid vehicle control ECU
  • Oil pump motor controller
  • Oil with motor pump assembly
  • Wire harness or connector