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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Automatic Transmission System (A960E) - Diagnostic Codes (2 Of 2) & Circuit Tests) >> Automatic Transmission System >> DTC P0781: 1-2 Shift (1-2 Shift Valve) [04/2013 - 08/2015] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

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

CONDITION (A)

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

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

Turbine speed - Output speed x 4th gear ratio
(NT - NO x 4th gear ratio)
1000 rpm or more
CONDITION (D)

Turbine speed - Output speed x 5th gear ratio
(NT - NO x 5th gear ratio)
1000 rpm or more