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Home >> Lexus >> 2010 >> LS 600hL >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Vehicle Control (Diagnostic Codes (P0338-885 - P0A1A-658) >> Hybrid Control System >> DTC P0748-850: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778-851: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2) >> Description

DTC P0748-850: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1); DTC P0778-851: Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2): Description

The hybrid vehicle control ECU turns the SL1, SL2, and SP solenoid valves on and off to switch between low and high gear.

DTC No. INF Code DTC Detection Condition Trouble Area
P0748 850 Short or open in the SL1 solenoid valve circuit
  • Wire harness or connector
  • Hybrid vehicle transmission assembly
  • Hybrid vehicle control ECU
P0778 851 Short or open in the SL2 solenoid valve circuit