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valleybusman
Top Member

USA
798 Posts

Posted - 01/13/2022 :  12:31:42 PM  Show Profile  Send valleybusman an AOL message  Reply with Quote
I have a 2007 Bluebird all american . If you start the bus everything will be fine for a few minutes . Then a light comes on and says range inhibited transmission cuts out . I got a code of P0882 low voltage . My jpro says it starts out at 11 volts and when the light comes on shows over 13 volts . Any ideas ? Thanks !!!

Bluenozer
Top Member

Canada
640 Posts

Posted - 01/14/2022 :  02:19:26 AM  Show Profile  Reply with Quote
the code is for the battery power low, pins 10 and 70, could be a bad battery, or charging system, as per Allison it should set this code for under 9volts
load test the two wires with a light or power probe, from memory i think most only have one wire that goes o power and there is a splice before the TCM that gives you the two wires , so check the splice also , low voltage only has to happen on one of these wires to log code

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

USA
798 Posts

Posted - 01/14/2022 :  09:16:01 AM  Show Profile  Send valleybusman an AOL message  Reply with Quote
Thanks Bluenozer for filling me in . Now would it be possible to show which pins are used on the connector ? Maybe the plug is numbered ? I have never had to work on the power side of an Allison .Only one time had to figure power on one in 30 years .I guess I am at lost too . My laptop shows 11.9 volts using allison software .
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valleybusman
Top Member

USA
798 Posts

Posted - 01/14/2022 :  1:34:11 PM  Show Profile  Send valleybusman an AOL message  Reply with Quote
Got it fixed . Bad ground cable on the frame . Thanks for the help
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