Inspection [04/2013 - 08/2015]: Procedure
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.
- 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 If the result is not as specified, repair or replace the shift lock control ECU wire harness.
*a Front view of wire harness connector
(to Shift Lock Control ECU) - 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 "+" Below 1 Ω Shift lever not held in "+" 10 kΩ or higher 1 (SFTD) - 2 (E) Shift lever held in "-" Below 1 Ω Shift lever not held in "-" 10 kΩ or higher If the result is not as specified, replace the transmission floor shift assembly.