Trying to sort out no start problem for my sister-in-law. Auto in question is a 1997 Ford Taurus with the Vulcan V6. So far I have the following:
engine does not turn over
Fuses and relay appear to work fine
5v on the transmission range sensor input
12v to starter relay power connection, no voltage to relay switch during
start cycle
Suspects left:
ignition switch
alarm box
wiring
I could not find a point to test the ignition switch for contact in the start position. Does anybody know where I can access wiring to check for continuity or voltage thru the start switch circuit from the actual key switch?
Additional info:
New starter installed about 1.5 years ago
New trans range sensor installed
alarm box appears to be ford but with a very unprofessional installation.
box was mounted over the under dash fuse box and wiring does not
look "factory". As an aside, is anybody familiar with this alarm box? It
does appear to be working properly.
Any input will be appreciated. I have the Haynes manual as well as Taurus Ford Factory Manual for the 1996 Taurus.
engine does not turn over
Fuses and relay appear to work fine
5v on the transmission range sensor input
12v to starter relay power connection, no voltage to relay switch during
start cycle
Suspects left:
ignition switch
alarm box
wiring
I could not find a point to test the ignition switch for contact in the start position. Does anybody know where I can access wiring to check for continuity or voltage thru the start switch circuit from the actual key switch?
Additional info:
New starter installed about 1.5 years ago
New trans range sensor installed
alarm box appears to be ford but with a very unprofessional installation.
box was mounted over the under dash fuse box and wiring does not
look "factory". As an aside, is anybody familiar with this alarm box? It
does appear to be working properly.
Any input will be appreciated. I have the Haynes manual as well as Taurus Ford Factory Manual for the 1996 Taurus.