Question about 1984 Toyota Cressida
The problem I see is you have an intermittant issue. If the car was charging when you had the alternator tested then the test is reduntant.
You would have to test the alternator when its not charging. Having an intrmittant issue like this tells me you may have a bad alternator, and or regulator if its internal or a loose connection at the fuse box, or a bad PCM . Not sure what fuse, if any power it up. But when it is not charging and you still have 12 volts at the alternator then the other wires are regulated by the computer.
If you do not have 12v at the alternator when it is not charging then you have a 12v power source issue.
Posted on Feb 11, 2010
Please confirm that the connectors both read 12 volts else you might need some expert in charging system to service the charging system.
That is where the problem lies.
Posted on Feb 11, 2010
What is the battery voltage while the engine is running at around 1500 RPM's? I see you have 12 volts running to the alternator assuming this was checked while the engine was off? Your alternator has a built in regulator and may be the cause of the system not charging. How was the alternator load checked??? Sorry for all the questions, but I need this info to help. No need to rate this post yet. Thanks.
Posted on Feb 08, 2010
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Posted on Jan 02, 2017
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