Looking for help on diagnosing: had an issue with my blinkers not working, while the emergency flashers would work fine; read some of the posts in this excellent forum, and thought the emergency flasher switch was my problem; took it out and found indeed an issue in a loose prong + fixed it. also removed steering wheel and cleaned out the column switches. However, in putting it back together I now have a problem with the left blinker being on with the steering column switch in the middle position... From the wiring diagram, there are three wires going to the steering column selector: Blue/Black (AN) for the left blinker Blue (A) for the right blinker, and White/Black (BN) which is the common When testing the leads at the emergency flasher, with the switch removed, I find contact between the Blue/Black and the Blue leads, with the steering column selector in the middle (neutral) position. Should these two never have contact? Does this mean the steering column switch is gone bad? Thanks in advance.
The blue wire goes to the right turn indicator light in the speedometer and to the right parking lights. The blue/black goes to the left turn indicator light and left parking lights. These present a low resistance to ground So if the 'contact' you see is the combined resistance of the bulbs it would be normal. If the 'contact' you see is absolute zero ohms (dead short), it's not normal. Also, both blue and blue/black wires go to the hazard switch whose duty in life is to short them together. So, if you made the resistance test with the hazard switch on, it would contribute to the 'contact' you observed. I've not taken my switch apart so can't help you with the mechanicals.
Thanks for the feedback - I ended up changing the bulbs for the front blinkers, and the problem went away. The emergency lights switch was still bad and the fix still holds... Just love the continuous challenges from my Dino. Well, at least now I am fully familiar with the wiring diagram.
