924Board.org

canyonblaster · Joined: 20 Aug 2012 Posts: 391 Location: Denver, CO, USA

Hi guys,

Car is 1981 931.
My wipers have the following two issues:

1. They do not complete the sweep cycle when turned off, they just stop right where they are.
2. Intermittent is totally in-op

I replaced the motor but have same result. Where is the issue most likely to be? the relay or the switch in the steering column?

Thanks!
_________________
PCA Licensed Club Racer & Driving Instructor Current P cars: 1981 931
Past P cars, 1985 944, 1987 951, 1990 911 C4, 2002 Boxster S, 2005 996 GT3, 2013 911 C2S
Daily Driver P cars: 2008 Cayenne GTS, 2013 Cayenne GTS

!tom · Posted: Tue Sep 10, 2013 11:50 am Post subject:

Those are the functions performed by the wiper relay.

So, either your wiper relay is missing, broken, or the wrong one.
_________________
78 924 NA
5-lug

scm924s · Joined: 22 Oct 2010 Posts: 296 Location: Gloucester UK

Had the same problem, found it wasn't the relay, but the main wiper switch was u/s. Worked all right except for parking and intermittent.
_________________
1984 n/a Ruby Red Metallic
1988 924S Guards red- sold
1986 924S Guards Red - sold
1984 n/a Black - sold
1980 n/a Le Mans#1 - sold
1980 n/a Le Mans#2- sold
1977 Martini - sold

CorsePerVita · Joined: 25 Jul 2008 Posts: 1992 Location: Redmond, Oregon

You could use a jumper wire to bypass the relay. That'll tell you if it's an issue with that.
_________________
- 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS

!tom · Posted: Wed Sep 11, 2013 2:01 pm Post subject:

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Typically pull the relay and jump pin 30 to the pin you're interested in, typically pin 87.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)