P203B (reductant Level Sensor)
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Fleet Mechanic
Joined: Jan 2005
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From: Tomball, Tx
P203B (reductant Level Sensor)
Wondering if this is a pattern failure.
Has anyone else seen P203B (reductant Level Sensor A Circuit Range/Performance) errors.
To my knowledge my DEF tank is full (If I am to believe the gauge). The DEF tank should be full given my historical consumption rate/mileage as well as the fact that I recently topped off the DEF tank when it was about 1/2 full.
Has anyone else seen P203B (reductant Level Sensor A Circuit Range/Performance) errors.
To my knowledge my DEF tank is full (If I am to believe the gauge). The DEF tank should be full given my historical consumption rate/mileage as well as the fact that I recently topped off the DEF tank when it was about 1/2 full.
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Joined: Jul 2017
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From: Dallas TX
What did you end up finding on this? I'm getting the same thing, but found this thread which may point the issue to the batteries (and I tend to believe it):
https://www.ford-trucks.com/forums/1...203b-code.html
https://www.ford-trucks.com/forums/1...203b-code.html
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Fleet Mechanic
Joined: Jan 2005
Posts: 1,784
Likes: 8
From: Tomball, Tx
What did you end up finding on this? I'm getting the same thing, but found this thread which may point the issue to the batteries (and I tend to believe it):
https://www.ford-trucks.com/forums/1...203b-code.html
https://www.ford-trucks.com/forums/1...203b-code.html
New User
Joined: Jul 2017
Posts: 15
Likes: 0
From: Dallas TX
Well hell....I was hoping it was something as simple as a battery issue with you too. I'm assuming you haven't had the issue since they replaced the sensor? Are your batteries in good shape/still the same from the factory?
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