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1998 v70xc fixed my power seat switch

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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1998v70xcbill
Posts: 138
Joined: 17 February 2014
Year and Model: 1998v70xc
Location: phila pa
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1998 v70xc fixed my power seat switch

Post by 1998v70xcbill »

Tried to move seat forward and switch didn't work. Programmed buttons did move it forward.
Looked here how to remove switch panel.
1. I disconnected battery
2. Pull up on front, then tilt up and side back. I didn't break anything.
3. I was hard to remove green plug. Hard to get to release button.

I brought the assembly inside, removed 3 torx screws, released tab and removed switch assembly.
Don't try to pull the knobs off. Remove small phillip screws and remove circuit board with memory buttons facing down. There are small springs for the memory button you don't want to lose.

I then cleaned switches with contact cleaner (CRC QD electronic cleaner) Working the switches at the same time.

Switch works great.

Can anyone tell me what the red tool under the side seat panel? I assume it for the side air bag. When or how is it used?

Thanks Bill

mikel
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Post by mikel »

to cover sensor for airbag. they will fire without the battery. they cover the round pressure switch.

1998v70xcbill
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Year and Model: 1998v70xc
Location: phila pa
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Post by 1998v70xcbill »

Thanks for the reply.

mecheng
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Post by mecheng »

I have the same problem. The drivers seat works perfectly, the passenger seat: nothing. No noise for the motors, no mov't at all.

It is the same fuse for both correct?

Can the contacts be that dirty that not one single button works? I'm surprised?
1998 Volvo S70 T5 - SE - 240km - Sold July 2018
1997 Volvo 850 GLT - 190km
Boost is my drug of choice

1998v70xcbill
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Year and Model: 1998v70xc
Location: phila pa
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Post by 1998v70xcbill »

my quick fix didn't last to long. no forward movement. Forward motion works from memory presets.
need to clean switch again or replace. or add external switch?

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dosbricks
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Year and Model: '96 855, '98 S70
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Post by dosbricks »

Bill, I was ecstatic until I read your last post as my S70 switch has exact same problem. Memory OK but won't move forward with the switch. Mine died slowly until the forward function quit altogether. Everything else works.

You might try looking at the circuit board with a magnifying glass to check for cracks or bad solder connections. Right now I have a brake job to do or I would take a look at it. If you figure this out, be sure to post back because you are not alone with this issue.

dos
'98 S70, 230k, purchased new in '98
'96 855 GLT, 163k, purchased lightly used in '99
Onceuponatime RIP '69 Shelby GT500 w/7.0 liter

mikel
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Post by mikel »

I have extra power seat controls from a 98 v70 if you need one.

I'm in bala cynwyd

…m

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dosbricks
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Post by dosbricks »

mikel wrote:I have extra power seat controls from a 98 v70 if you need one.

I'm in bala cynwyd

…m
Go for it, Bill. It's your thread. I think bala cynwyd is somewhere in south Phily around Cherry Hill :wink:

dos
'98 S70, 230k, purchased new in '98
'96 855 GLT, 163k, purchased lightly used in '99
Onceuponatime RIP '69 Shelby GT500 w/7.0 liter

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abscate
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Post by abscate »

I'll buy a vowel please....
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A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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mikealder
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Post by mikealder »

mecheng wrote:It is the same fuse for both correct?
Each seat has its own self resetting thermal circuit breaker (11C/39) for the Left seat and (11C/40) for the right seat, to get at the circuit breakers you need to remove the entire top cover of the fusebox at the base of the windscreen, four T20 head screws, the self resetting breakers are the small silver metal cans that look like small relays. Try swapping 39 with 40 and then see if the fault goes to the other seat, if so a new circuit breaker is all that you need - Mike

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