Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

[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

Not change as follow 0.93 to 1.07 ↓ 0.65 to 0.79

OFF malfunction (C)

TYPICAL MALFUNCTION THRESHOLDS

Output record from ECM for 4th → 5th upshifting

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