DTC P085D-94: Gear Shift Control Module "A" Unexpected Operation [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC OUTPUT (HYBRID CONTROL)
Pre-procedure1
- Turn the ignition switch to ON.
Procedure1
- Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
Result
Result Proceed to Only P085D-94 is output A P085D-94 and other DTCs are output B Post-procedure1
- Turn the ignition switch off.
Result:
A
REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY (SHIFT CONTROL ECU). Refer to REMOVAL [10/2022 - ]
Result:
B
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 08/2023] , or Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2023 - ]
- Turn the ignition switch to ON.