Starting problem (maybe electric???)
#1
Pole Position
Thread Starter
Starting problem (maybe electric???)
This happened only twice in the last two months. I turn the key on, all dash lights and everything come on but when I turn to engage starter nothing happens. No click, no dimming of any lights. Keep trying, and nothing. If I leave the key on for 20 seconds it will start. It's not a serious recuring problem and I cant duplicate the problem. Both times it happened the temp was below zero and rain and snow the day and night before. Any ideas what this could be? New battery, (3 months) and rewired the plug on alternator 2 months ago. I dont see any loose connections.
#2
Moderator
This happened only twice in the last two months. I turn the key on, all dash lights and everything come on but when I turn to engage starter nothing happens. No click, no dimming of any lights. Keep trying, and nothing. If I leave the key on for 20 seconds it will start. It's not a serious recuring problem and I cant duplicate the problem. Both times it happened the temp was below zero and rain and snow the day and night before. Any ideas what this could be? New battery, (3 months) and rewired the plug on alternator 2 months ago. I dont see any loose connections.
There is a cheap way to fix it which I have writen a few years ago.
Last edited by Yamae; 03-07-15 at 08:12 AM.
#3
If it only happens during below 0 F, then I would be looking at the ECU. Caps maybe? If it is electronic related, it might get worse even at elevated temps but about all you can do is keep an 'eye' on it for now. I would not go on a witch hunt if it has not left you stranded.
What year is your car?
What year is your car?
#4
Moderator
If it only happens during below 0 F, then I would be looking at the ECU. Caps maybe? If it is electronic related, it might get worse even at elevated temps but about all you can do is keep an 'eye' on it for now. I would not go on a witch hunt if it has not left you stranded.
What year is your car?
What year is your car?
#5
I am not trying to "mislead" others. Just trying to help as I am sure most everyone is doing. The theft deterrent ECU must ground one side of the starter relay coil in order for the starter to operate. It is essentially in series with the neutral safety switch. However, if that is how you feel and is the general consensus of this board, then I will leave and not visit anymore.
Last edited by randal; 03-07-15 at 03:01 PM.
#7
Lexus Test Driver
iTrader: (1)
I am not trying to "mislead" others. Just trying to help as I am sure most everyone is doing. The theft deterrent ECU must ground one side of the starter relay in order for the starter to operate. It is essentially in series with the neutral safety switch. However, if that is how you feel and is the general consensus of this board, then I will leave and not visit anymore.
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#8
Maybe but I believe his English is pretty good. I may be getting into others 'sandboxes' and I can understand why it is not appreciated. In any case, I think I will cool it for a while on this board.
#10
Pole Position
Thread Starter
Sounds like the neutral safety switch has a conduction problem. The electric grease tends to cause that problem when very cold especially when the grease is aged. I bet it only happens when very cold morning.
There is a cheap way to fix it which I have writen a few years ago.
There is a cheap way to fix it which I have writen a few years ago.
No sense for everyone to argue about it, I did just ask for ideas.
I searched for the cheap fix you said but couldnt find it.
#11
I don't try or want to mislead anyone, I just put out other things it could be if someone else has covered something else that could be the problem. Yamae is one of the best here especially electrical problems.
#12
Moderator
Sorry that my words were too strict and not suitable, randal.
I know you have been doing great and saving quite many people. But this time I was a bit amazed at you strange advise. I wondered why a person like you wrote such an inaccurate information. I thought may be you were drinking alcohol or something like me. I was drinking wine last night and I was a bit drunk.
The starter motor is not related to the ECU at all and it can be easily checked seeing the wiring diagram quickly.
Recently I found some people are misleading others often here with their strange advices based only on their speculations. I thought you were not those type of people but all of the sudden you wrote what was not correct which might confuse or mislead others. I must apologize that I used rude words after drinking Spanish wine too much.
I know you have been doing great and saving quite many people. But this time I was a bit amazed at you strange advise. I wondered why a person like you wrote such an inaccurate information. I thought may be you were drinking alcohol or something like me. I was drinking wine last night and I was a bit drunk.
The starter motor is not related to the ECU at all and it can be easily checked seeing the wiring diagram quickly.
Recently I found some people are misleading others often here with their strange advices based only on their speculations. I thought you were not those type of people but all of the sudden you wrote what was not correct which might confuse or mislead others. I must apologize that I used rude words after drinking Spanish wine too much.
#13
I was not drinking any alcohol at all, Yamae. And I respectfully disagree about the ECU having nothing to do with the starter. If you look at a schematic, you will see that the low side(pin 3) of the starter relay coil is controlled by the theft deterent ECU. This is, the coil must be grounded by the ECU in order for the starter relay to engage. The other end of the starter relay coil(pin 1) is driven by +12V from the ignition switch and the neutral start switch. But without grounding pin 3 of the coil, via the ECU, the starter relay would not engage. That is precisely how the theft system prevents the starter from cranking.
Last edited by randal; 03-08-15 at 06:27 PM.
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