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I went to fix a broken plastic housing on the 4 way/Hazard switch. Super glued the retaining ring for the dash which seems to fracture with age/heat on the plastic and is the only thing wrong with the switch. Second time dealing with this issue. 1st switch lasted 10 years before the ring you see around the switch on the dash falls completely apart as it did in the first case so it wasn't glueable. 2nd switch was used and did the same thing 2 years later but this time the fracture on the plastic was mostly clean and could be glued back together, instead of plastic fragments that occurred on the original switch.
When I went to put the glued switch back in the connector pigtail barely comes through the dash. I pulled on it to get a little more wire.
Then the switch didn't work. Thought I broke the green wire which is the hot lead from the flasher relay. Tested the wire and had no power. Found that all other 3 wires were intact. Black is ground, Green is hot and connects the 4 way flashers when the switch is engaged. The other 2 wires, 1 is to power the switch light from the rheostat that controls dash lights and only works when the switch is off. The other is to activate the switch display light when the flashers are working and is connected to the hot lead out of the relay to the right side when the relay has activated the right side blinker lights and flashes the display light in the switch when the 4 way flashers are working.
The bottom line is when I finally tore everything apart it apears that the connection to the hot(green) lead from the relay wasn't making contact.
I found this after using a probe to find power along the green wire back as far as it I could go on the cable bundle in the console area and no power.
So I attacked the fuse relay area. Once I got there I found there are 2 relays involved, 2 from power that are fused for the blinkers/flashers and the flasher relay. If you pull the 4 pin relay that is in the front of the tray you will disable the turn signal switch that seems to go through this relay and onto the flasher relay.
If this relay is pulled no turn signals happen and the flasher relay has no power, there are 2 fuses for the 4 way flashers and turn signals, and when this relay is in the flasher relay is working.
The bottom line is when I put a jumper (spliced in at the relay and again right before the switch) from the green wire on the flasher relay which is in the back of the tray and labeled Saab flasher relay I was able to use the switch. Ironically after I bent the relay contacts to get a better connection on the Flasher relay and eliminated the jumper I used to bypass the harness and reconnected the original wire that's now full of holes the flasher worked.
So if this happens and you have no power from the green wire in the Emergency Flasher connector at the dash go straight to the Flasher relay contacts and see if the green wire has power out of the relay since power goes into the flasher relay and comes out of it on the green wire to the switch in the dash. The switch basically crosses the green wire to ground(black) to activate the 4 way flashers.
posted by 24.128.248...
, Thu, 18 Nov 2010 14:21:28, Thu, 18 Nov 2010 14:58:29
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