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Intake air heater code

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Old 01-21-2018, 10:00 PM
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Intake air heater code

I keep having my 07 3500 with a 5.9 throw the intake air heater code usually with a low voltage detected code stored. The heater is new and yet I still get the code constantly. Anyone have any ideas? Thank you
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Old 01-22-2018, 06:47 AM
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Originally Posted by medic scott View Post
. . . usually with a low voltage detected code .
. .
What is the condition of your batteries and cables in your 10 year old truck? What part of the world are you in?
Back to morning brew . . .
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Old 01-22-2018, 08:22 AM
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Batteries were tested and ok. And as far as I can tell the cables and everything look ok. And i live in Oregon in the valley. Just moved from the coast
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Old 01-22-2018, 09:34 AM
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Originally Posted by medic scott View Post
Batteries were tested and ok. And as far as I can tell the cables and everything look ok. And i live in Oregon in the valley. Just moved from the coast
you probably have a dirty connection somewhere
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Old 01-28-2018, 12:56 AM
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Originally Posted by johnh View Post
you probably have a dirty connection somewhere
or a failed relay. It's just below the passenger side battery.
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