After a search and reading through four pages of threads I still can't find an explanation for an issue that i'm having. I have also read through the Haynes and the FSM with no luck.
I have completely rewired project cars but this has me truly stumped. Before I completely rip the dash out and scare my wife I'm asking for any help.
Vehicle: 1985 FJ60
Issue: Previous owner (now decesased) created an electrical puzzle for me to unravel. When purchased the A/C button had to be pushed in for the blinkers to work. I'm not making that up. Looking into this I found the connector at the blower motor was disconnected. When plugged back in the A/C switch didn't have to be pushed in for the blinkers to work. Very strange.
The blower motor does not work in any switch position. The A/C button doesn't light up pressed.
All other electrical items work in the vehicle.
Items checked/corrected so far in this order.
Blower Motor: Hooked directly to 12V for 5 minutes and it ran with no problem. Brushes looked good and I cleaned up everything while I had it out. Checked connector and no voltage.
Fuses: Checked all fuses. None blown and all appear in good condition.
Circuit breaker in dash: Not tripped. Checked continuity of breaker and it is good. No voltage read at location with key turned on.
Fusible Links:
The red wire fusible link was blown. I replaced all three fusible links. All working correctly now.
Circuit breaker in dash: Voltage check now reads 12V with key turned on.
Heater relay: Continuity checked out and it clicks when 12 volts applied. Checked voltage where it plugs in and it is has 12V. When plugged in I do here it click when the key is turned on.
Fan speed switch: No voltage reading at the the switch in any position. I can't reach my hand behind the dash to test where the switch plugs in. To do that I will have to take the entire dash off.
Blower Resistor Switch: Haven't tested and unsure if it is even unplugged. Will check this evening.
Other observations. On the switched side of the starter there is a small (18 gauge) wire that has been cut and is hanging there. Unsure where it is supposed to go. There doesn't appear to have been any auxiliary lights, cb radio or other items installed on this truck at any point. Can't confirm that though.
I do see what appears to be a ground wire that would connect at the windshield wiper motor that is disconnected.
It does appear that another stereo was put in the truck because I can see wire nuts when I look up behind the dash with a flashlight. There is also cheap speaker wire run to each door. The stock radio that put back into the dash and lights up and appears to operate but no sound because the radio antenna wasn't re-installed after the truck was painted. The repaint occurred and then the PO brought it home and passed away.
Current thoughts: I have no idea about the blower motor being unplugged or the AC button needing to be depressed in order for the blinkers. My guess is doing these things helped completed a circuit that allowed the blinkers to work.
So, I have purchased a nice looking cruiser with an electrical puzzle. It really sucks having to rip into this thing but I can get over that if I know everything will work when complete.
I guess it is best for me to pull off the dash, sort out this issue, clean everything and install a new radio while everything is torn apart.
PLEASE tell me if you think I'm on the wrong path to track down this issue. I'm all ears for good advice.
Thanks, Bill D.
I have completely rewired project cars but this has me truly stumped. Before I completely rip the dash out and scare my wife I'm asking for any help.
Vehicle: 1985 FJ60
Issue: Previous owner (now decesased) created an electrical puzzle for me to unravel. When purchased the A/C button had to be pushed in for the blinkers to work. I'm not making that up. Looking into this I found the connector at the blower motor was disconnected. When plugged back in the A/C switch didn't have to be pushed in for the blinkers to work. Very strange.
The blower motor does not work in any switch position. The A/C button doesn't light up pressed.
All other electrical items work in the vehicle.
Items checked/corrected so far in this order.
Blower Motor: Hooked directly to 12V for 5 minutes and it ran with no problem. Brushes looked good and I cleaned up everything while I had it out. Checked connector and no voltage.
Fuses: Checked all fuses. None blown and all appear in good condition.
Circuit breaker in dash: Not tripped. Checked continuity of breaker and it is good. No voltage read at location with key turned on.
Fusible Links:
The red wire fusible link was blown. I replaced all three fusible links. All working correctly now.
Circuit breaker in dash: Voltage check now reads 12V with key turned on.
Heater relay: Continuity checked out and it clicks when 12 volts applied. Checked voltage where it plugs in and it is has 12V. When plugged in I do here it click when the key is turned on.
Fan speed switch: No voltage reading at the the switch in any position. I can't reach my hand behind the dash to test where the switch plugs in. To do that I will have to take the entire dash off.
Blower Resistor Switch: Haven't tested and unsure if it is even unplugged. Will check this evening.
Other observations. On the switched side of the starter there is a small (18 gauge) wire that has been cut and is hanging there. Unsure where it is supposed to go. There doesn't appear to have been any auxiliary lights, cb radio or other items installed on this truck at any point. Can't confirm that though.
I do see what appears to be a ground wire that would connect at the windshield wiper motor that is disconnected.
It does appear that another stereo was put in the truck because I can see wire nuts when I look up behind the dash with a flashlight. There is also cheap speaker wire run to each door. The stock radio that put back into the dash and lights up and appears to operate but no sound because the radio antenna wasn't re-installed after the truck was painted. The repaint occurred and then the PO brought it home and passed away.
Current thoughts: I have no idea about the blower motor being unplugged or the AC button needing to be depressed in order for the blinkers. My guess is doing these things helped completed a circuit that allowed the blinkers to work.
So, I have purchased a nice looking cruiser with an electrical puzzle. It really sucks having to rip into this thing but I can get over that if I know everything will work when complete.
I guess it is best for me to pull off the dash, sort out this issue, clean everything and install a new radio while everything is torn apart.
PLEASE tell me if you think I'm on the wrong path to track down this issue. I'm all ears for good advice.
Thanks, Bill D.
