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Discussion Starter · #1 ·
I have the v10 in my 2016 Motorhome and the battery (almost 3 years old) began slowly dropping in voltage over the last two weeks. Yesterday it wouldn’t crank and showed (<5V). Then today, it cranked right up.
My Blue Driver OBD scan showed code B1352 Ignition Key in Circuit Fault. Can this cause battery drainage? Appreciate comments.
 

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Hello,

I'm guessing you charged the battery between the time the engine wouldn't crank and when it fired right up?

Code B1352 indicates there's a problem with the "ignition-key-in circuit". The circuit works like this:

-When you insert your key, the key-in-ignition switch closes and sends a ground signal to the instrument cluster.
-The instrument cluster then sounds the key-in-ignition warning chime if it sees the key in the ignition and also receives a door ajar signal.

I would say it's unlikely that an issue with the ignition-key-in circuit is causing your battery to go dead. You're probably just dealing with a battery that's at the end of its life and code B1352 is a separate issue (or possibly the dead battery caused the code, who knows). I would charge the battery and load test it.

In any case, if the battery tests good, you can check for a drain by performing a parasitic draw test with an ammeter in series with the negative battery cable.
 

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Discussion Starter · #3 ·
Thanks so much for the info. As the battery was at the end of its 3 year life, I replaced it yesterday. I will monitor closely now.

Hello,

I'm guessing you charged the battery between the time the engine wouldn't crank and when it fired right up?

Code B1352 indicates there's a problem with the "ignition-key-in circuit". The circuit works like this:

-When you insert your key, the key-in-ignition switch closes and sends a ground signal to the instrument cluster.
-The instrument cluster then sounds the key-in-ignition warning chime if it sees the key in the ignition and also receives a door ajar signal.

I would say it's unlikely that an issue with the ignition-key-in circuit is causing your battery to go dead. You're probably just dealing with a battery that's at the end of its life and code B1352 is a separate issue (or possibly the dead battery caused the code, who knows). I would charge the battery and load test it.

In any case, if the battery tests good, you can check for a drain by performing a parasitic draw test with an ammeter in series with the negative battery cable.
 

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Discussion Starter · #5 ·
Thank a lot for the helpful info. I replaced the battery yesterday and will monitor now.

Hello,

I'm guessing you charged the battery between the time the engine wouldn't crank and when it fired right up?

Code B1352 indicates there's a problem with the "ignition-key-in circuit". The circuit works like this:

-When you insert your key, the key-in-ignition switch closes and sends a ground signal to the instrument cluster.
-The instrument cluster then sounds the key-in-ignition warning chime if it sees the key in the ignition and also receives a door ajar signal.

I would say it's unlikely that an issue with the ignition-key-in circuit is causing your battery to go dead. You're probably just dealing with a battery that's at the end of its life and code B1352 is a separate issue (or possibly the dead battery caused the code, who knows). I would charge the battery and load test it.

In any case, if the battery tests good, you can check for a drain by performing a parasitic draw test with an ammeter in series with the negative battery cable.
 
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