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valleybusman
Top Member

USA
665 Posts

Posted - 06/16/2022 :  08:47:12 AM  Show Profile  Send valleybusman an AOL message  Reply with Quote
I have a 2012 Bluebird all American with a cumin's engine .The filter change light came on . I have never changed the filter and just reset so the light would go off . I always thought these reminders were mileage related ? Is the transmission detecting a drop in pressure ? I used J Pro and reset the filter reminder and it goes off and then I start the bus and it comes back . So I used these two codes reset . N R N R D N and then N D N D N R N do I really need to change the internal and external to reset the transmission ?

g0ttadrift
Advanced Member

USA
219 Posts

Posted - 06/16/2022 :  09:40:03 AM  Show Profile  Reply with Quote
When that light comes on, you should change the external filter. I'm pretty sure it's just a screen on the internal. Be mindful to take the magnet off the top of the filter and put it on the new one. I can't tell you how many times I didn't even think about it and just threw it out with the old filter. Once it's been changed, you can use this to reset the light: N-D-N-D-N-R-N Make sure you pause a moment in between each shift.
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eddo
Advanced Member

USA
292 Posts

Posted - 06/16/2022 :  1:17:12 PM  Show Profile  Reply with Quote
to add to g0ttadrift, I think you also have to have your foot on the brake pedal while doing the shifter dance.
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Bluenozer
Top Member

Canada
569 Posts

Posted - 06/17/2022 :  02:29:59 AM  Show Profile  Reply with Quote
jpro does this now also
bidirectional tests click on allison on the left

OEM trained in wiring and all engine platforms for 20 years
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valleybusman
Top Member

USA
665 Posts

Posted - 06/17/2022 :  1:42:38 PM  Show Profile  Send valleybusman an AOL message  Reply with Quote
I did that with my J pro and it cleared shut bus off went on a run and it was back on again
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Bluenozer
Top Member

Canada
569 Posts

Posted - 06/23/2022 :  02:29:59 AM  Show Profile  Reply with Quote
oil is a timed thing but filter is read by pressure i think

OEM trained in wiring and all engine platforms for 20 years

Edited by - Bluenozer on 06/23/2022 02:51:56 AM
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