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Central Locking Relay Location?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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Madhelpermonkey
Posts: 50
Joined: 29 September 2011
Year and Model: 850-1996
Location: Maryland

Central Locking Relay Location?

Post by Madhelpermonkey »

Would someone be kind enough to tell, and show, me where I can find and remove the central locking relay on my 1996 850 base model? A diagram/picture and advice would be most appreciated.

Thank you most kindly,

Chris
Last edited by matthew1 on 06 Mar 2012, 10:53, edited 1 time in total.
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Madhelpermonkey
Posts: 50
Joined: 29 September 2011
Year and Model: 850-1996
Location: Maryland

Post by Madhelpermonkey »

Never mind found it in the wiring diagram section on this site....could not access it from the home computer.

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erikv11
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Post by erikv11 »

So where is it? I am curious.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

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osman
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Post by osman »

driver side kick panel behind hood release
Brick Life
2003 Saab 9-5 ARC V6 3.0 Turbo 120K SwagWagon
97 850R wagon mileage unknown
2000 C70 Turbo Convertible 110K
99 XC70 AWD LPT 115
98 BMW 328IS 130K M3 Wheels
94 Mercedes 420E 160K
Kiwi bluetooth/Torq Pro app VOL-FCR/VAG-COM USB cable

Madhelpermonkey
Posts: 50
Joined: 29 September 2011
Year and Model: 850-1996
Location: Maryland

Post by Madhelpermonkey »

Yes that's what the diagram shows. Is under the fuse box. The upper portion is accessible through the engine compartment and the lower inside under the dash.

Not sure how to attach the diagram but if you go to the the electrical diagrams on this site in the repair database, its page 11 for the 1996 850 set.

318mike
Posts: 167
Joined: 11 January 2012
Year and Model: 850,1994
Location: 01970

Post by 318mike »

The relay on my 94 850 says central locking right on it

Madhelpermonkey
Posts: 50
Joined: 29 September 2011
Year and Model: 850-1996
Location: Maryland

Post by Madhelpermonkey »

I just pulled 3 from a local JY. All three has the same numbers as the diagram and all said "locking relay". However one said "normal" and the other two said "Two step". They weren't real easy to get at but not impossible either. Since my car originall unlocked only the drivers door on the first push of the remote and the remaining locks on the second I surmise that min is a two-step variety. Will know when i put it in and see if conditions improve.

Comments?

318mike
Posts: 167
Joined: 11 January 2012
Year and Model: 850,1994
Location: 01970

Post by 318mike »

My 94 850 na has just one relay and it says Central Locking Relay.What you say about the two makes sense.Let us know?

Madhelpermonkey
Posts: 50
Joined: 29 September 2011
Year and Model: 850-1996
Location: Maryland

Post by Madhelpermonkey »

To clarify, I pulled relays from 3 cars to compare. It is a single, double wide relay module. Its says "two-step" on it. It used to behave as I described in an earlier post. However after installing the replacement relay there is no change in behavior. So I ask the forum What else could cause the drivers door not to unlock on the first button push yet all locks unlock on the second push?

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regent
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Post by regent »

The relay itself is just the 'worker bee' (it does what the CTRL module tells it to do).
It appears that your Alarm System Module keeps 'ignoring' the first burst from the remote, yes?

What happens when you turn the key in the door lock, does the system behave the same way, or does it unlock DS door (first step) then the other doors (second step)?
If the key 'works as intended', then the solution is to have the remote reprogrammed (re-learned).
Hope this helps :D
Last edited by regent on 07 Mar 2012, 09:12, edited 1 time in total.
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