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Volvo A25D Dump Truck door ajar light stays on

Justin98

Active Member
Joined
Sep 9, 2020
Messages
33
2005 Volvo A25D A25DV13985 The door ajar light is on and will not go out. The machine will not shift out of first gear and has no power to the 3 wire sensor. The fuses have been checked and are good and the relay has been swapped. Any suggestions on how to proceed?
 

sfrs4

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Jul 22, 2013
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Great Britian
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parts admin
are you getting power from both the relay and the fuse F5? see attached wiring diag
 

Attachments

  • A25D door monitor wiring.pdf
    80.2 KB · Views: 18

Gary Layton

Well-Known Member
Joined
Mar 9, 2021
Messages
191
Location
Georgia
Good try but wrong. Using the same PC here I always use. I just re-tried...had to find exact right spot to click on. This is what shows on the monitor here:
 

Attachments

  • dozer snap.JPG
    dozer snap.JPG
    40.1 KB · Views: 13

sfrs4

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Thanks Nige, was going to say it works as normal when i click on it, not sure why it won't open.
 

sfrs4

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The wiring loom goes down the left hand B pillar ( as your sat in the seat looking forward) then to the connections marked C20 behind the fuse board. i'd check the plug connection C20 if your fuse and relay are fine, if not there is a plug in the roof lining for the door sensor, try there
 

tygrys1991

New Member
Joined
May 15, 2023
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Location
Rzeszów
Powitanie. Prąd mam w dwóch przewodach i przewód uziemiający jest ok. Czujnik zamknięcia drzwi jest nowy. Nadal pokazuje otwarte drzwi, a Volvo A30D nie zmienia biegów. Co jeszcze możesz sprawdzić?
 

sfrs4

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Jul 22, 2013
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Cześć, przepraszam, polski nie jest językiem, którym mówię, więc użyłem tłumacza google. Przy otwartych drzwiach zasilanie powinno być tylko w przewodzie czerwonym, czarny powinien być uziemiony, a biały powinien być przewód przełączany, przy otwartych drzwiach nie powinno być napięcia, przy zamkniętych drzwiach powinno być napięcie
 

tygrys1991

New Member
Joined
May 15, 2023
Messages
3
Location
Rzeszów
Hello. Thank you for the information. The sensor transmits current to the white cable. But still the computer reads the open door. And that's why it still won't shift gears . Regards
 

sfrs4

Senior Member
Joined
Jul 22, 2013
Messages
690
Location
Great Britian
Occupation
parts admin
do you have 2 switches in the door frame above the door? if not then there is a relay somewhere behind the ECU's on the left hand side of the cab, that is the only thing except the ECU failing, if you have two switches it must be the other one
 

Attachments

  • A30D 15084- door open wiring.pdf
    84.8 KB · Views: 6
  • A30D 14847 door open wiring.pdf
    168.6 KB · Views: 7
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