Login Register

96 850 electrical problems

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

Post Reply
lucasdunton
Posts: 2
Joined: 26 April 2014
Year and Model: 1996 Volvo 850
Location: Kentucky

96 850 electrical problems

Post by lucasdunton »

I just got a 96 850 to drive to work. The problem is the windows.radio and climate control do.not.work. i have replaced the ignition switch thinking that was the.problem. no dice. No power.is.getting to the relay that control it. Any ideas?

Rbaratt
Posts: 159
Joined: 16 June 2012
Year and Model: 850,S70,C70
Location: Hampstead, NH

Post by Rbaratt »

I'm not great at wiring diagrams but I was wondering if you saying that you don't have power at pin 2 on the x overload relay (yellow violet wire)? Thinking you might have a break in the yellow violet wire between ignition switch and the relay. Somebody with more experience may let us know if I'm even close with this.
2008, C70, 44,000 miles
2000, S70, GLT, 67,000 miles
1995, 850, GLT, 144,000 Miles
1996, 850, Turbo, 226,000 Miles (TMU)

SpeedyPete
Posts: 133
Joined: 2 October 2010
Year and Model: S70-T5, 1998
Location: California, USA

Post by SpeedyPete »

Can you post the wiring diagram?

Rbaratt
Posts: 159
Joined: 16 June 2012
Year and Model: 850,S70,C70
Location: Hampstead, NH

Post by Rbaratt »

Not sure that I can but I tried to attach a file. See if it can be viewed.
Attachments
Window Wiring.doc
(886.5 KiB) Downloaded 158 times
2008, C70, 44,000 miles
2000, S70, GLT, 67,000 miles
1995, 850, GLT, 144,000 Miles
1996, 850, Turbo, 226,000 Miles (TMU)

polskamafia mjl
Posts: 2640
Joined: 1 April 2009
Year and Model: 1995 Volvo 854 T-5R
Location: Hershey, PA
Has thanked: 19 times
Been thanked: 21 times

Post by polskamafia mjl »

The wiring diagrams are available on MVS.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
Previous: 1996 Volvo 850 GLT - Totaled

Rbaratt
Posts: 159
Joined: 16 June 2012
Year and Model: 850,S70,C70
Location: Hampstead, NH

Post by Rbaratt »

Sent you pm with a link.
2008, C70, 44,000 miles
2000, S70, GLT, 67,000 miles
1995, 850, GLT, 144,000 Miles
1996, 850, Turbo, 226,000 Miles (TMU)

lucasdunton
Posts: 2
Joined: 26 April 2014
Year and Model: 1996 Volvo 850
Location: Kentucky

Post by lucasdunton »

Correct in no power at the pin in the relays. Both of them. Jumping power to the line sude of the fuses gets them working but is rigged. Any suggestions? At work now but working and testing it tomorrow.

Rbaratt
Posts: 159
Joined: 16 June 2012
Year and Model: 850,S70,C70
Location: Hampstead, NH

Post by Rbaratt »

I think your on the right track. When energized the yellow violet wire from the x terminal of the ignition feeds power to fuses 34 and 33. From fuse 33 the y-vo wire continues to feed power to the two relays (terminal 2 on both overload relays 30 and 60). Terminal 4 on each relay is the ground. The window circuit begins with relay 60 at terminal 1 which is the power feed from the battery, and when the relay is energized, power will flow from terminal 1 to terminal 3 and then through circuit breaker 37 to the window switches. You just need to isolate where the break is, and from what you described that is somewhere between the ignition switch and terminal 2 of the relays.
2008, C70, 44,000 miles
2000, S70, GLT, 67,000 miles
1995, 850, GLT, 144,000 Miles
1996, 850, Turbo, 226,000 Miles (TMU)

Post Reply
  • Similar Topics
    Replies
    Views
    Last post