battery won't start car sometimes like it has drained but it's not. On the display it says unknown drive.
Sep 22, 2022 at 4:10 AM
Where is the battery control module located?
DUSTY03
- MEMBER
- 6 POSTS
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Hi,
To the best of my knowledge, this model/year vehicle doesn't have a battery control module. The system uses a voltage regulator to control output.
When the key is turned on, the PCM powers the regulator. Once the engine is running, the regulator varies the field current and the voltage output in conjunction with the PCM.
If you have concerns related to the alternator, here is a link that explains how to test the alternator's output.
Here is a link that explains how it's done:
https://www.2carpros.com/articles/how-to-check-a-car-alternator
Also, I attached a pic of the charging system circuit1
wiring schematic so you have a reference.
Let me know if this helps or if you have questions.
Take care,
Joe
See pic below.
To the best of my knowledge, this model/year vehicle doesn't have a battery control module. The system uses a voltage regulator to control output.
When the key is turned on, the PCM powers the regulator. Once the engine is running, the regulator varies the field current and the voltage output in conjunction with the PCM.
If you have concerns related to the alternator, here is a link that explains how to test the alternator's output.
Here is a link that explains how it's done:
https://www.2carpros.com/articles/how-to-check-a-car-alternator
Also, I attached a pic of the charging system circuit1
wiring schematic so you have a reference.
Let me know if this helps or if you have questions.
Take care,
Joe
See pic below.
Image (Click to enlarge)
Sep 22, 2022 at 2:20 PM
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