Check fuse for parking lights Check headlight switch if replacement required also replace harness--they heat up and don't make good connection on new switch
Usally the triangle is emergency signal lights, or flashers.
There is a relay switch for the signal flasher's, on your 1997 Ford van. The relay switch is below the dashboard on the drivers side.
Turn signal flasher is under the dashboard beside the steering column. Flasher unit for the emergency flashers is on the other side of the steering column.
Both fuses # 13 and # 18 are 15 amp fuses for the electronic flashers ( it doesn't show which is the hazards and which is for the turn signals )
where are the flashers located
No gurarantees, but most car signal flashers are plugged in at, or near the fuse box - try there.
The turn signal flashers for most GM vehicles is left of the steering column, under the dashboard. There is usually an access door covering the fuse panel where the flasher lives.
The switch is in the glovebox, the flasher unit is mounted under the dash near the glovebox. turn signal flashers is mounted near steering column
The signal and 4-way flashers are behind the lower dash panel, aprox under the radio. The lower dash panel must be removed to gain access to the flashers.
Check the fuses.
The Signal electrical Control is located in the column of driving wheel, the flashers located under the dask
replace the turn signal flasher fuse.