LS 460 RWD V8-4.6L (1UR-FSE) (2010)
(3) If incorrect, troubleshoot the brake system See: Testing and Inspection.
(d) Check the accumulator pressure sensor.
(1) Move the shift lever to the P position. Apply the parking brake and connect the Techstream to the DLC3.
(2) Turn the engine switch on (IG).
(3) Turn on the Techstream. Select the Accumulator Pressure Sensor ("ACC PRESS SENS").
(4) Temporarily operate the pump motor by depressing the brake pedal 4 or 5 times.
(5) After confirming that the pump motor stops, check the pressure output voltage.
Standard voltage:
2.6 to 3.8 V
(6) If incorrect, troubleshoot the brake system See: Testing and Inspection.