T-Codes 0135, 0456, 1594 and 1684

2003 DODGE CARAVAN
150,000 MILES • 3.8L • V6 • 2WD • AUTOMATIC
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THEBOSSJ
  • MEMBER
  • 2 POSTS
I have 4 trouble codes but my van runs fine, the T-codes are 0135, 0456, 1594 and 1684. All of my tools and shop equipment is buried in my cargo trailer. I need a little help. thanks.
Dec 10, 2020 at 1:00 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

Do you mean P codes?

P0135 is related to the Heated O2 Sensor.

P0456 is related to an EVAP leak.

P1594 is related to overcharging.

P01684 indicates the battery was disconnected.

_________________________

My biggest concern which can be causing several issues is the overcharging. Do me a favor. I need to know how much voltage the alternator is producing. Here is a link that explains how to do it:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Do this first and let me know the results.


Joe
Dec 10, 2020 at 9:35 PM
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THEBOSSJ
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  • 2 POSTS
I thank you.
Dec 11, 2020 at 7:17 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
You are very welcome. If you have a chance, let me know what you find. Please keep in mind, if the alternator is truly overcharging, it can damage other components, so don't wait too long to check it.

Take care and let me know if I can help.

Joe
Dec 11, 2020 at 9:59 PM