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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission System >> DTC P0746 Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1); DTC P0771 Shift Solenoid "E" Performance (Shift Solenoid Valve SR) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

[P0746 and P0771: OFF malfunction] 

All of the following conditions are met. OFF malfunction (A), (B) and (C)

2 detections are necessary per driving cycle

1st detection: temporary flag ON

2nd detection: pending fault code ON

OFF malfunction (A) 

TYPICAL MALFUNCTION THRESHOLDS

Turbine speed/Output speed 0 93 to 1 07

OFF malfunction (B) 

TYPICAL MALFUNCTION THRESHOLDS

Turbine speed/Output speed Does not change as follows
0 93 to 1 07

0 65 to 0 79

OFF malfunction (C) 

TYPICAL MALFUNCTION THRESHOLDS

Output record from ECM for 4th → 5th up-shift Recorded

[P0771: ON malfunction] 

2 detections are necessary per driving cycle

1st detection: temporary flag ON

2nd detection: pending fault code ON

ON malfunction 

TYPICAL MALFUNCTION THRESHOLDS

Turbine speed - Output speed x 1st gear ratio (NT - NO x 1st gear ratio) 150 rpm or more