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2000 Volvo S40 ignition starter switch removal

Help, Advice, Owners' Discussion and DIY Tutorials on S40 and V40. In this forum you'll find S40/V40-specific owners asking and answering questions on maintenance, ownership, repairs, tutorials and almost every do-it-yourself thing you can do to save money owning these Volvos.

1996 - 2004 S40
1996 - 2004 V40

rwernyei
Posts: 10
Joined: Wed Jun 19, 2019 3:09 pm
Year and Model: 2000 S40
Location: Pittsburgh

2000 Volvo S40 ignition starter switch removal

Post by rwernyei »

Having intermittent starting issues. Stop in for a haircut to come out to stranded car. All lights come on no start, no cranking noise. 45 minutes later starts on a dime. Drive a few days as normal then issue happens again. Stranded and wait, then starts. Web surfing, I deduced it to be the SCU aka Ignition Starter Switch. Bought part at Autozone but got hung up replacing new one. Anyone able to share any guidance on getting the pigtails off the old switch. I circled them in yellow on the attached pic. I am able to remove all the other connectors. Your help would greatly be appreciated. Thanks.

Robert
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rwernyei
Posts: 10
Joined: Wed Jun 19, 2019 3:09 pm
Year and Model: 2000 S40
Location: Pittsburgh

Re: 2000 Volvo S40 ignition starter switch removal

Post by rwernyei »

Anyone?
Thisonekiddd
Posts: 2
Joined: Fri Dec 06, 2019 1:52 am
Year and Model: 2004. S40
Location: North salt lake

Re: 2000 Volvo S40 ignition starter switch removal

Post by Thisonekiddd »

A light tap to the back side and it should slide forward. Also got mine off by twisting slightly clockwise and a good pull
rwernyei
Posts: 10
Joined: Wed Jun 19, 2019 3:09 pm
Year and Model: 2000 S40
Location: Pittsburgh

Re: 2000 Volvo S40 ignition starter switch removal

Post by rwernyei »

Ok. I am freeing up some time to tackle this again. As much as I appreciate the advice provided in an earlier answer, the area is very small and twisting and pulling does not seem practical. There has to be a way to get the pigtails off safely without adding further damage to wires, connectors, etc. Is there a locking mechanism that needs to be unclamped or an area where a small flathead screwdriver needs to be used for prying? Please help.
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alschnertz
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Re: 2000 Volvo S40 ignition starter switch removal

Post by alschnertz »

I suspect you are correct that there is a locking mechanism between the male and female sides of the plug.
Don't have any advice to offer though as I've never had mine apart.

Did have a thought though.
Is it possible that your problem is with the PNP switch? This is the switch that prevents the car from starting in gear.
And it not working properly can cause the symptoms you're having.
They have been known to get corrosion on the contacts over the years.
"Rowing" the gearshift (engine off) back and forth 20-30 times is said to be enough to clean the contacts.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE
rwernyei
Posts: 10
Joined: Wed Jun 19, 2019 3:09 pm
Year and Model: 2000 S40
Location: Pittsburgh

Re: 2000 Volvo S40 ignition starter switch removal

Post by rwernyei »

Thanks for your reply. Yes after reading several posts and searching the web, that could very well be the problem. I figured starting with the ignition switch first, then either going to the actual starter bad solenoid, battery ground and cables or the PNP switch. Seems like any of these could cause the problem I'm experiencing. I have tried rocking the gearshift back and forth and tried slamming it into Park position and same with Neutral and failed to start. Opening and locking doors in case it was the immobilizer and no success. Seems like either waiting or taking both battery cables off touching them and removing immobilizer, engine, ignition, and battery box fuses and then putting everything back has made it start. This could have also been a coincidence too. Hasn't failed in a week so I haven't had the chance to try this workaround again.
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alschnertz
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Re: 2000 Volvo S40 ignition starter switch removal

Post by alschnertz »

rwernyei wrote: Sun Mar 08, 2020 11:15 amI have tried rocking the gearshift back and forth and tried slamming it into Park position and same with Neutral and failed to start.
Not sure if "slamming" it one way or another makes any difference. Actually, I think it wouldn't.
However, "rowing" it might, as that may have more of a cleaning action.

I've been successful doing that with the HVAC fan switch lately. For whatever that's worth!
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
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RickHaleParker
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Re: 2000 Volvo S40 ignition starter switch removal

Post by RickHaleParker »

The Column lock going out is a common problem with the first generation X40, will not let the key turn all the way to POS III. You get the exact symptoms you have.

To confirm the problem is the Column lock. When it is acting up:
1. Take the screw out of the ignition switch.
2. Turn key to POS II.
3. Grab ahold of the ignition switch and turn it clockwise.
4. If the engine cranks and starts the Column lock is defective.

You could replace the Column lock for ~$160.00 and a PITA after drilling/cutting the sear bolts ... or .... put a Push-to-Start switch across the White and the Green wires to the ignition switch and be done with the problem for ~$10.00 and less then a hour of your time.

White is always hot and Green is the starter relay. Jumping the two will crank the engine.

On my 2003 S40. I just push the wires from the new Push-to-Start switch up into the connector of the ignition switch and taped them down to the wiring harness to keep them in place. That was three years ago. It is still working.
Last edited by RickHaleParker on Sun Mar 08, 2020 4:44 pm, edited 1 time in total.
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD.
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
rwernyei
Posts: 10
Joined: Wed Jun 19, 2019 3:09 pm
Year and Model: 2000 S40
Location: Pittsburgh

Re: 2000 Volvo S40 ignition starter switch removal

Post by rwernyei »

Thanks for the replies. I actually tried moving the connected ignition switch downward holding it in place while starting based on two YouTube videos I viewed. No success. Sucks because I really thought that was going to fix it when I saw the success videos. Regarding slam statement, I am just making sure it is in either Park or Neutral frozen in gear before trying to start. Actually, I row and pause in increments at each gear thinking the gearbox and ECU will register its position to start. Again, no success when tried in the past. Been starting fine lately but inevitably it will fail again.
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RickHaleParker
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Re: 2000 Volvo S40 ignition starter switch removal

Post by RickHaleParker »

The PNP is just a simple switch.

Have you tried replacing the starter relay? It is under the dash, drivers side, on firewall.

Study this you should be able to figure out how to disable the immobilizer if you thing that is what the problem is.
X40Starting.png
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD.
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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