Electrical

Asked by Jun 15, 2011 at 01:03 PM about the Porsche 944

Question type: Maintenance & Repair

Electrical- With the ignition key in the 'off' position, I have 12v power to starter, fuel pump, dash gages etc as soon as I connect the wires to the battery.  How do I check for bad ignition switch, bad relay(s) or whatever else may cause this issue.
Everything was OK until I tried to shut the car off and it just kept running. Starter motor will start cranking as soon as battery cables are attached (with the key's in my pocket!)
Thanks,
JohnF

1 Answer

255

What year is your 944? If it is a late model, then my guess are that the cap on the back of the ignition switch is busted. This can cause the wires in the back to touch. That is the only thing I can think of that could be the problem for everything turning on like that and would be one failure, not multiple ones. The best way to check the ignition switch is to use a multimeter set to ohms. Unplug the wires from the rear of the switch (mark them!), and check the different positions to make sure that when you have the key in the off position, it isn't sending power to the starter.

Your Answer

Add photo

Related Questions

Search Porsche 944 Questions

Porsche 944 Experts

#1 Robert DeNicola
Robert DeNicola
Reputation 250
#2 Adam Morgan
Adam Morgan
Reputation 200
#3 Stephen Smith
Stephen Smith
Reputation 140
View All

Related Models For Sale

Used Porsche 911
119 Great Deals out of 4,601 listings starting at $8,901
Used Porsche 968
15 listings
Used Porsche 928
33 listings
Used Porsche Boxster
66 Great Deals out of 1,497 listings starting at $2,995
Used Porsche 924
15 listings
Used Chevrolet Corvette
202 Great Deals out of 20,888 listings starting at $4,993
Used Ford Mustang
399 Great Deals out of 44,403 listings starting at $1,000
Used BMW 3 Series
1,471 Great Deals out of 38,438 listings starting at $1,700
Used Porsche Cayman
20 Great Deals out of 773 listings starting at $13,895
Used BMW M3
67 Great Deals out of 1,922 listings starting at $4,350
Used Porsche 914
29 listings
Used Mazda MX-5 Miata
63 Great Deals out of 4,843 listings starting at $2,500
Used Porsche 912
9 listings
Used Porsche Cayenne
102 Great Deals out of 5,780 listings starting at $3,999