1998 S70 PnP switch 9466012, bad aftermarket new part Topic is solved

ferocity02 · Post by **ferocity02** » 08 Oct 2018, 17:53

UPDATE... A couple months after finding the pushed pin on the PNP switch, the issue came back. It was much more intermittent, happening once every few weeks. So while frustrated beyond belief, I neglected the issue. But recently it has been doing it every other day and needs my attention once again...

So I'm back to square one.

ferocity02 · Post by **ferocity02** » 08 Oct 2018, 17:55

Oly850 wrote: ↑05 Mar 2018, 21:03 I had this issue in my '96 850 a few years back. I replaced the PNP switch which improved things, but what really solved it was finding the melted wire short in the harness going away from the PNP switch to the ECM. Found it by looking for shorts to ground on the harness. I'll separated wires and reinsulated them, whamo problem went totally away.

Do you recall whereabouts in the harness the short was located? I think that might be my next step. I'm also contemplating just running new wires between the PNP switch and the transmission computer to tally rule out the wiring.

ferocity02 · Post by **ferocity02** » 20 Oct 2018, 17:06

Bump!

ferocity02 · Post by **ferocity02** » 29 Oct 2018, 12:50

Bump!

ferocity02 · Post by **ferocity02** » 09 Dec 2018, 16:53

UPDATE:

I found the issue. The replacement range switch was garbage. The construction inside does not provide a real positive connection. I cleaned the switch and stretched out the springs to provide more force on the tabs. The issue seems to be fixed for the time being. If it happens again my plan is to get a used OEM switch and rebuild it, or just get a new OEM switch, but they are pretty expensive.

Post by **abscate** » 10 Dec 2018, 10:04

Can you name the defective brand so we can add it to our wall of shame?

Parts that don’t work out of box don’t deserve our money nor our time.

ferocity02 · Post by **ferocity02** » 10 Dec 2018, 12:42

It is Pro Parts, or Professional Parts. Their part number is 28430012. The Volvo part number is 9466012.

FCP Euro used to sell it, but I see they no longer do ever since I sent back the first one.

Post by **abscate** » 10 Dec 2018, 14:49

...thanks added and green box checked.

Gouws · Post by **Gouws** » 05 Apr 2019, 15:04

Hi sorry my man..can you please explain to me where are those switches(pnp) (s/e/w)mode switch and the and cable to mode selector.....please and a milion thanks....

Post by **abscate** » 06 Apr 2019, 05:08

9466012 still available abt FCP

https://www.fcpeuro.com/products/volvo- ... 70#reviews

1998 S70 PnP switch 9466012, bad aftermarket new part Topic is solved

Re: 1998 S70 Ongoing issue with Transmission Range Switch. Pin out of place