circuit diagram for both the charging system and starting?

2004 LEXUS ES 300
232,345 MILES • V6 • 2WD • AUTOMATIC
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BLESSING EWOBOR
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The vehicle battery indicator light does come on sometimes. I have checked the battery voltage and it is okay and the alternator seems to be fine and sometimes the vehicle will not crank. Please could I get the circuit diagram for both the charging system and starting. Thank you very much. This site has been of help to me. I really appreciate.
Mar 21, 2023 at 7:37 AM
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STRAILER
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Sure, here are the wiring diagrams for the starter and alternator system with a guide to help you check the connections.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Mar 21, 2023 at 10:48 AM
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BLESSING EWOBOR
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Thank you very much.
I will give feedback on this.
Mar 21, 2023 at 7:23 PM
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STRAILER
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Good to hear, please use 2CarPros anytime we are here to help.
Mar 22, 2023 at 4:59 PM
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BLESSING EWOBOR
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No problem.
Mar 24, 2023 at 6:34 PM