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1999 S70NA Evita dome light 9483142 troubleshooting [Passenger door switch fault]

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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abscate
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by abscate » Thu Feb 28, 2019 1:34 pm

Excellent skills, thanks Rick
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by abscate » Fri Mar 01, 2019 8:12 am

Hmmm - car is away at indie getting keys made - but I just noticed something

On my 1999 V70 the light switch function order is

ON- DOOR- OFF

The 10/22 diagram above shows order as DOOR OFF ON

I wonder if the switch had a VIN change on it ?
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by raivis_rsn » Sat Mar 02, 2019 1:32 pm

It's actually DOOR ZERO position, not DOOR. I gues that confuses you.

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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by abscate » Sat Mar 02, 2019 3:05 pm

The top switch in the diagram has three positions , DOOR -OFF -ON

My car switch has three positions. ON DOOR OFF

It is customary to accurately represent the switch function in an electrical diagram, so one of these isn’t right, tbd.

In any case, a continuity test to terminal 7 on the dome light plug to ground will tell me if I’ve got a ground switch closed when all the doors are open, the most simple failure here.

Stay tuned
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by RickHaleParker » Sun Mar 03, 2019 1:12 am

abscate wrote:
Sat Mar 02, 2019 3:05 pm
It is customary to accurately represent the switch function in an electrical diagram, so one of these isn’t right, tbd.
An electrical schematic is a logical representation of the physical connections and layout of an electric circuit.

Accurately represent the switch Electrical functions - Yes
Accurately represent the switch Mechanical functions - Yes.
Accurately represent the switch Mechanical layout - No.
--------
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by abscate » Mon Mar 04, 2019 10:23 am

Its interesting that the 'failure mode of the switch' exactly matches that of the switch mechanical layout in the electrical diagram - with the labelled switch functions of DOOR and ON reversed.

I doubt this is a failure deeper than this.
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by E Showell » Mon Mar 04, 2019 10:38 am

Steve -- As you may or may not recall, the driver door was changed on that car. I don't know if that had the potential to muck up the dome light?
'98 V70 NA FWD 5 spd, silver sand metallic (sold)
'99 V70 NA FWD Auto, dark blue (actively for sale)
'99 S70 NA FWD Auto, black (sold and resurrected -- Don't cry for me Argentina . . . )
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by raivis_rsn » Mon Mar 04, 2019 10:51 am

E Showell wrote:
Mon Mar 04, 2019 10:38 am
Steve -- As you may or may not recall, the driver door was changed on that car. I don't know if that had the potential to muck up the dome light?
That doesn't matter if door lock actuator works as it should.

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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by abscate » Tue Mar 05, 2019 10:12 am

Evan is on point here. If the connector was fubar, the door would close, the circuit would see the normally open connection, and the light would stay on in the DOOR position.
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Re: 1999 S70NA Evita dome light 9483142 troubleshooting

Post by erikv11 » Tue Mar 05, 2019 12:49 pm

Junkyard! Or fellow MVS parts-hoarders. Replace the switch panel! This could have (possibly) been fixed by now ...
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

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