Posted January 23, 20169 yr comment_485235 Hi guys I need some help. No power at turn signal lever its 73z manual when I picked up car it was a bare shell only, all apart, does anyone have a photo you can share of where the wires from the combo switches meet up? I have the signal switch plugged in to the right plug on the main harness of dash which looks like it's a square plug with 6 pins, but there's zero power there. And zero at the lever. There are a couple of single wires unplugged like the key buzzer wire which right now I'm not worried about. I think some of them crossover from headlight combo switch to the tsig side, but colors don't match under column. The other lights all fine, flashers and horn are working. Fuses all good. Any help appreciated. Edited January 23, 20169 yr by Rick Bolus Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/ Share on other sites More sharing options...
January 23, 20169 yr comment_485247 Do you have the proper wiring harness? If so, the colors should match up nicely. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485247 Share on other sites More sharing options...
January 24, 20169 yr comment_485280 First post a picture of your switch from a few other angles. I need that to id which year it comes from. Also post your build date. drivers door jamb. Make sure the pictures show the connectors. The 73 switches after 1/73 I think have intermittent wipers. You will see three white dots on the wiper switch rather then two on earlier ones. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485280 Share on other sites More sharing options...
January 24, 20169 yr comment_485281 If its any consolation, I still scratch my head a bit about which wires go where when I hook those switches up. My favs are the separate green and white singles that connect to the flasher. They seem like orphans until it finally clicks.... Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485281 Share on other sites More sharing options...
January 27, 20169 yr Author comment_485532 Hi guys here's the photos of my combo signal wiring dilemma. It's a 06/73 production. As you can see the main plug is connected but I have no power at that conection Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485532 Share on other sites More sharing options...
January 27, 20169 yr Author comment_485535 Sorry upload missed this pic. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485535 Share on other sites More sharing options...
January 28, 20169 yr comment_485543 What, exactly, is not working? You said the flashers are working: Do you mean the hazards or the turn signals? If you are looking for power for the headlights, the headlight switch controls the ground, not the positive. This means that when the headlights are off there should be two "hot" wires at the headlight switch, one for the low beam and one for the high beam. If these lines are "cold" check the headlight fuse, headlights (bulbs) and so on. There should be power at each headlight at all times. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485543 Share on other sites More sharing options...
January 28, 20169 yr Author comment_485548 Beer man Pete the pictures were of my present possibly wrong connections, What is Not working are the turn signals, left nor right. The headlights and high beam are working fine, hazard all four are fine. There is zero power anywhere on the turn signal section of the look that plugs into them. Thanks Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485548 Share on other sites More sharing options...
January 28, 20169 yr comment_485549 Read over this, do some diagnostics, and tell us what you find. https://fiddlingwithzcars.wordpress.com/2013/01/20/hazard-switch-brake-light-turn-signal-circuit-analysis/ Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485549 Share on other sites More sharing options...
January 28, 20169 yr comment_485550 I can't tell much from your photos. You need a factory service manual with the wiring schematic so you can trace the wires by color through the car as you troubleshoot the problem. I think you can get a free copy from xenonzcars.com. Since you have no power at the turn signal switch it seems like the problem lies elsewhere. Does the car run? Does anything that is controlled by the ignition switch work (i.e. radio, heater, wipers)? Power for the turn signals runs from the ignition switch to the fuse box, then to the hazard switch, then to the flasher, then to the turn signal switch. Start by checking for power at the 20 amp fuse for the turn signals. It should be hot when the key is in the on position. Check the fuse itself and (assuming it is goog) clean it and the clips it snaps into. Next, check for power at the two green wires on the hazard switch. One is the feed from the fuse box, the other goes to the flasher. Next check for power at the flasher (the one with a green wire and a white wire, the other flasher is for the hazards). Next, check for power on the white wire at the turn signal switch. The first place without power tells you the component upstream, or a connection in-line from it is the problem. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485550 Share on other sites More sharing options...
January 28, 20169 yr comment_485551 The power the turn signals goes through the hazard switch. Even though the hazards work, I'll bet the problem is in the hazard switch contacts. Do the checks that SteveJ gave you the link for and let us know what you find. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485551 Share on other sites More sharing options...
January 28, 20169 yr Author comment_485552 45 minutes ago, beermanpete said: I can't tell much from your photos. You need a factory service manual with the wiring schematic so you can trace the wires by color through the car as you troubleshoot the problem. I think you can get a free copy from xenonzcars.com. Since you have no power at the turn signal switch it seems like the problem lies elsewhere. Does the car run? Does anything that is controlled by the ignition switch work (i.e. radio, heater, wipers)? Power for the turn signals runs from the ignition switch to the fuse box, then to the hazard switch, then to the flasher, then to the turn signal switch. Start by checking for power at the 20 amp fuse for the turn signals. It should be hot when the key is in the on position. Check the fuse itself and (assuming it is goog) clean it and the clips it snaps into. Next, check for power at the two green wires on the hazard switch. One is the feed from the fuse box, the other goes to the flasher. Next check for power at the flasher (the one with a green wire and a white wire, the other flasher is for the hazards). Next, check for power on the white wire at the turn signal switch. The first place without power tells you the component upstream, or a connection in-line from it is the problem. Link to comment https://www.classiczcars.com/forums/topic/53175-73z-turn-signal-wiring-photo/#findComment-485552 Share on other sites More sharing options...
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