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Home >> Lexus >> 2006 >> IS 250 RWD, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission (A760H)) >> Automatic Transmission System >> DTC P0781 1-2 Shift (1-2 Shift Valve) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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Both of the following conditions are met: Condition (A), and Condition (B), (C) or (D)

Malfunction (A) 

TYPICAL MALFUNCTION THRESHOLDS TABLE - MALFUNCTION (A)

Turbine speed/Output speed (NT/NO) 3.40 or more, and 7.50 or less
(This means actual gear is 1st)

Malfunction (B) 

TYPICAL MALFUNCTION THRESHOLDS TABLE - MALFUNCTION (B)

Turbine speed/Output speed (NT/NO) 1.28 or more, and 1.53 or less
(This means actual gear is 3rd)

Malfunction (C) 

TYPICAL MALFUNCTION THRESHOLDS TABLE - MALFUNCTION (C)

Turbine speed - Output speed x 4th gear ratio (NT - NO x 4th gear ratio) 1,000 rpm or more

Malfunction (D) 

TYPICAL MALFUNCTION THRESHOLDS TABLE - MALFUNCTION (D)

Turbine speed - Output speed x 5th gear ratio (NT - NO x 5th gear ratio) 1,000 rpm or more