Starter System [09/2023 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK WHETHER ENGINE CAN BE CRANKED
- Check if the engine can be cranked.
Result
Result Proceed to Engine cannot be cranked A Engine can be cranked B
Result:
B
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [09/2023 - ]
Result:
A
See step 2
- Check if the engine can be cranked.
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE (SOLENOID (SL8) VALVE) - TCM)
Pre-procedure1
- Disconnect the TCM connector.
Procedure1
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C25-4 (SL8+) - C25-21 (SLG1) 20°C (68°F) 5.0 to 5.6 Ω Result
Proceed to OK NG Post-procedure1
- None.
Result:
OK
REPLACE TCM. Refer to REMOVAL [09/2023 - ]
Result:
NG
See step 3
- Disconnect the TCM connector.
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)
Pre-procedure1
- Disconnect the transmission wire connector.
- Disconnect the TCM connector.
Procedure1
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C65-19 (SL8+) - C25-4 (SL8+) Always Below 1 Ω C65-10 (SLG1) - C25-21 (SLG1) Always Below 1 Ω C65-19 (SL8+) or C25-4 (SL8+) - Body ground and other terminals Always 10 kΩ or higher C65-10 (SLG1) or C25-21 (SLG1) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG Post-procedure1
- None.
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 4
- INSPECT SOLENOID (SL8) VALVE
Refer to INSPECTION [09/2023 - ]
Result
Proceed to OK NG Result:
OK
REPAIR OR REPLACE TRANSMISSION WIRE. Refer to REMOVAL [09/2023 - ]
Result:
NG
REPLACE SOLENOID (SL8) VALVE (TRANSMISSION VALVE BODY ASSEMBLY). Refer to REMOVAL [09/2023 - ]