LexBob123

My 2014 LS 460, with about 100,000 miles has been having intermittent hard start problems. When I push start button sometimes it will start to crank and immediately stop. I have replaced the car battery and key fob battery, no change. I even tried my spare fob with new battery, no change. I wait a few seconds and push button again and starts right up, with a fast cranking. No lights or error messages. Anyone experience this? HELP
Thanks in advance for your help.

Anfanger

Did you use an error code reader to check for errors?

LexBob123

No. Just didnt have any errors on dash or check engine.

Anfanger

Some errors are not indicated on the dash.

Anfanger

I could be wrong, but your issue might be caused by the starter cut relay. Below is the relay testing procedure.

LexBob123

Anfanger, the starter cut relay sounds like it could be the problem. Where is the starter cut relay located? Is it part of the starter or the solenoid? Thanks for your help.

Anfanger

Below see where to find the relay.



While you are at it, check the starter relay as well.

LexBob123

Thanks Anfanger. Does the LS have both starter cut relay snd a separate starter relay? Looks like the tests you sent is the same for both. Thanks.

Anfanger

There are 2 relays that have, what it seems, the same testing routine.