Inspection [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT TRANSMISSION FLOOR SHIFT ASSEMBLY
HINT:
If the results of the following inspections are as specified but a malfunction has occurred, replace the transmission floor shift assembly.
- Disconnect the shift lock control ECU connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition 5 (IG) - Body ground Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V 4 (STP) - Body ground Brake pedal depressed 11 to 14 V Brake pedal released Below 1 V *a Front view of wire harness connector
(to Shift Lock Control ECU)If the result is not as specified, repair or replace the shift lock control ECU wire harness.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1 (E) - Body ground Always Below 1 Ω *a Front view of wire harness connector
(to Shift Lock Control ECU)If the result is not as specified, repair or replace the shift lock control ECU wire harness.
- INSPECT TRANSMISSION CONTROL SWITCH
- Disconnect the transmission control switch connector.
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(Transmission Control Switch)Standard Resistance
Tester Connection Condition Specified Condition 4 (IG) - 5 (S) Shift lever in M, "+" or "-" Below 1 Ω Shift lever not in M, "+" or "-" 10 kΩ or higher 3 (SFTU) - 2 (E) Shift lever held in "+" (Up shift) Below 1 Ω Shift lever in M 10 kΩ or higher 1 (SFTD) - 2 (E) Shift lever held in "-" (Down shift) Below 1 Ω Shift lever in M 10 kΩ or higher If the result is not as specified, replace the transmission floor shift assembly.