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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Electronic A/T Shift Lever System - Diagnostic Codes & Circuit Tests) >> Electronic Shift Lever System >> DTC P091A-2B: Gear Shift Position Circuit "B" Range/Performance Signal Cross Coupled [11/2021 - ] >> Description

DTC P091A-2B: Gear Shift Position Circuit "B" Range/Performance Signal Cross Coupled [11/2021 - ]: Description

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The shift actuator ECU monitors the ECU internal operation, and if a malfunction is detected, the ECM stores a DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
P091A-2B Gear Shift Position Circuit "B" Range/Performance Signal Cross Coupled When BAT1 voltage is normal, an absolute angle sensor value malfunction continues for a certain amount of time
(1 trip detection logic)
Shift control actuator assembly (shift actuator ECU) Comes on Multi-information Display Error Message 
  • Displayed
Transmission A SAE: P091B