skalpem Posted August 6, 2015 Report Share Posted August 6, 2015 Yes, a newbie here. Let me start off by saying I have read most, if not all, the threads related to my problem and am still stuck. I have 1972 521 with partial working dash lights. The red ignition light works when I turn the key one click, then the light turns off when the truck starts.The left and right turn-signal lights on the dash match the flash of the outside turn signal lights. The headlights work low and high, and the red light to indicate brights are on works. When the the hazard light switch is pulled, only the left side flashes on the dash and on the truck (confusing!). The fuel and temp gauges work. The problem is I have no instrument lights working to drive at night. I have cleaned the all contacts; I checked all bulbs, fuses, and relays, and all are working. I also looked for dead spots on back of dash panel. Quote Link to comment
datzenmike Posted August 6, 2015 Report Share Posted August 6, 2015 You say the L&R turn signals on the outside work but the 4 way flasher only works the left side? Dash and the rear tail lights and front marker lights are on the same circuit and should be on together. So... When the light switch is pulled out to the first position do the tail lights come on? When pulled out to the second position (headlights) do the tail light stay on? Quote Link to comment
skalpem Posted August 6, 2015 Author Report Share Posted August 6, 2015 1) yes, 4 way flasher only works on left side 2) No, tail lights do not come on in first position 3) No, tail lights do not come on and stay on with the headlights in 2nd position Quote Link to comment
banzai510(hainz) Posted August 6, 2015 Report Share Posted August 6, 2015 3) No, tail lights do not come on and stay on with the headlights in 2nd position means pulled to 2nd position then the tail lights work? to me this is the fuse . look good but end solder inside is broke,replace with NEW one Flasers I dont have a clue Quote Link to comment
skalpem Posted August 6, 2015 Author Report Share Posted August 6, 2015 Replaced fuse and tail lights work and one dash light came on. Fuse looked good but must have been blown . Tested all dash bulbs and all light up, just not when installed in dash. Thanks Quote Link to comment
banzai510(hainz) Posted August 6, 2015 Report Share Posted August 6, 2015 ends separated inside. middle will loook good. Quote Link to comment
datzenmike Posted August 7, 2015 Report Share Posted August 7, 2015 Pull headlight switch to first position tail lights, license light all four corner or clearance lights and front parking lights as well as all dash lights should come on. All on same fuse. Right side fuse box closest fuse 10 amp. Pull headlight switch to second position.... same as above but headlights also on but different fuse. Right side just below the one mentioned above Quote Link to comment
kelowg Posted August 7, 2015 Report Share Posted August 7, 2015 Bad connections on dash bulb sockets or main dash harness plug. Although if wroking u still wont b able to see at night. Heard led bulbs help,but i ended up installing custom gauges. Quote Link to comment
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