 No power to wipers 1973-SOLVED |
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| TheCabinetmaker |
 Aug 1 2013, 08:33 AM
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#21
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I drive my car everyday  Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666  |
there are about 700,000 tech tips in this forum.
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| mepstein |
Aug 1 2013, 08:42 AM
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#22
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914-6 GT in waiting Group: Members Posts: 19,289 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region 
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QUOTE(ripper911 @ Aug 1 2013, 10:03 AM)  QUOTE(HalfMoon @ Aug 1 2013, 09:59 AM) QUOTE(ripper911 @ Aug 1 2013, 09:30 AM) FWIW I tracked my non-functional wipers down to a bad switch using the procedure in the tech tips 700 book. I now have a toggle switch under the dash for windshield wiping purposes. Cool! WHere is this "Tech Tips 700" book located and where can I get a copy? Or is this some resource online? If so, do you have the link? Thanks! It is located in Marietta, GA. from AutoAtlanta. It is a very useful book for 914 owners IMO. I have the tech tips book but don't recall reading about replacing the wiper switch with a toggle switch under the dash? Maybe that's an AA special secret? (IMG:style_emoticons/default/agree.gif) 914world is tech tips x 1,000,000 |
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| ripper911 |
Aug 1 2013, 09:02 AM
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#23
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corde pulsum tangite Group: Members Posts: 2,920 Joined: 25-April 10 From: Powder Springs, GA Member No.: 11,654 Region Association: South East States |
QUOTE(mepstein @ Aug 1 2013, 10:42 AM) I have the tech tips book but don't recall reading about replacing the wiper switch with a toggle switch under the dash? Maybe that's an AA special secret? (IMG:style_emoticons/default/agree.gif) 914world is tech tips x 1,000,000 It was a rare (and now extremely valuable) option back in the day. (IMG:style_emoticons/default/alfred.gif) |
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| HalfMoon |
Aug 1 2013, 05:31 PM
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#24
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
Interesting. Today I found what I think is the wiper relay (see pic/s) and I'm not sure if it's the right relay. It says on the side #111 94 583. Is that the right wiper relay part number for a 1973? I'm not even sure if it's wired properly (note jumper wire-not even sure if that's supposed to be there). The PO said the wipers did work (at some point).
Still stumped (IMG:style_emoticons/default/headbang.gif)   |
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| JeffBowlsby |
Aug 1 2013, 06:22 PM
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#25
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914 Wiring Harnesses Group: Members Posts: 8,520 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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That's the headlight dimmer relay. Have you found the wiring schematics for your '73 on the pelican parts dot com site yet?
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| JeffBowlsby |
Aug 1 2013, 06:22 PM
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#26
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914 Wiring Harnesses Group: Members Posts: 8,520 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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That's the headlight dimmer relay. Have you found the wiring schematics for your '73 on the pelican parts dot com site yet?
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| HalfMoon |
Aug 1 2013, 06:28 PM
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#27
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
QUOTE(Jeff Bowlsby @ Aug 1 2013, 08:22 PM) That's the headlight dimmer relay. Have you found the wiring schematics for your '73 on the pelican parts dot com site yet? Hi Jeff, Yes I have the schematic from them. And while it's helpful I'm still stumped. I can't even find where the relay is. |
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| HalfMoon |
Aug 1 2013, 08:12 PM
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#28
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
QUOTE(HalfMoon @ Aug 1 2013, 08:28 PM) QUOTE(Jeff Bowlsby @ Aug 1 2013, 08:22 PM) That's the headlight dimmer relay. Have you found the wiring schematics for your '73 on the pelican parts dot com site yet? Hi Jeff, Yes I have the schematic from them. And while it's helpful I'm still stumped. I can't even find where the relay is. And that's because (on non-intermittent models) there is NO relay (thanks William). Earlier in the thread there was an image that confused me about a relay being employed. Now that I know there's no relay, I can start tracing down wire continuity between the switch and the motor. There is however a rather nagging question.... The wiper motor is fused at position 8 on the fuse block, right? Shouldn't one side or the other (regardless of fuse condition-mines good) be hot with the key on? |
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| HalfMoon |
Aug 2 2013, 09:58 PM
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#29
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
And that's because (on non-intermittent models) there is NO relay (thanks William). Earlier in the thread there was an image that confused me about a relay being employed. Now that I know there's no relay, I can start tracing down wire continuity between the switch and the motor. There is however a rather nagging question.... The wiper motor is fused at position 8 on the fuse block, right? Shouldn't one side or the other (regardless of fuse condition-mines good) be hot with the key on? Well that's a BIG problem. The wipers ain't gonna work with fuse block eight not having any power with the key on. Soooo, either the fuse block is bad or the ignition switch has a problem. I'm not seing any other problems associated with the ignition switch so I guess I'll focus on the fuse block. Saw a nice upgrade from Pelican for a blade type fuse block fer bout hundred bux.... |
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| bulitt |
Aug 3 2013, 05:19 AM
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#30
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Achtzylinder Group: Members Posts: 4,188 Joined: 2-October 11 Member No.: 13,632 Region Association: South East States |
Jwest is a forum vendor and offers the fuse panel.
JWest Panel This is a pic out of the haynes manual for an early car. (IMG:http://www.914world.com/bbs2/uploads/post-2460-1357330116.jpg) |
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| JeffBowlsby |
Aug 3 2013, 06:39 AM
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#31
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914 Wiring Harnesses Group: Members Posts: 8,520 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Is everything else on the fusepanl hot with the ignitions switch on?
If the wiring works out ok, and the ignition switch is OK, then how about the wiper switch on the column? The different fusepanel layouts are different between the model years. That image out of Haynes is from an early car 1970-71, it is not the same as the 1973 car fusepanel, which has a horn relay. And that buzzer is hugenormous. I would like to see a photo of the backside of aftermarket fusepanels with the wiring attached if anyone has one they can post. The factory fusepanel has busses on it that the aftermarket panels do not have. |
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| HalfMoon |
Aug 3 2013, 02:42 PM
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#32
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
QUOTE(Jeff Bowlsby @ Aug 3 2013, 08:39 AM) Is everything else on the fusepanl hot with the ignitions switch on? If the wiring works out ok, and the ignition switch is OK, then how about the wiper switch on the column? The different fusepanel layouts are different between the model years. That image out of Haynes is from an early car 1970-71, it is not the same as the 1973 car fusepanel, which has a horn relay. And that buzzer is hugenormous. I would like to see a photo of the backside of aftermarket fusepanels with the wiring attached if anyone has one they can post. The factory fusepanel has busses on it that the aftermarket panels do not have. Just out to the garage to test the fuse block and here's what I found: With the key on, 1-6 dead 7 hot (lower side only) 8 dead 9-12 hot Key on with light switch pulled out 1-2 dead 3-5 hot 6 upper spade dead, lower spade hot 7 hot both sides 8 dead 9-12 hot and after this test my headlights went out, sigh. Fuse or relay I reckon. |
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| bulitt |
Aug 3 2013, 03:01 PM
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#33
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Achtzylinder Group: Members Posts: 4,188 Joined: 2-October 11 Member No.: 13,632 Region Association: South East States |
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| JeffBowlsby |
Aug 3 2013, 03:04 PM
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#34
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914 Wiring Harnesses Group: Members Posts: 8,520 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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QUOTE(HalfMoon @ Aug 3 2013, 01:42 PM) Just out to the garage to test the fuse block and here's what I found: With the key on, 1-6 dead 7 hot 8 dead 9-12 hot Are these towards the front of the car or rear as the fusepanel is mounted? |
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| HalfMoon |
Aug 3 2013, 03:27 PM
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#35
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
QUOTE(Jeff Bowlsby @ Aug 3 2013, 05:04 PM) QUOTE(HalfMoon @ Aug 3 2013, 01:42 PM) Just out to the garage to test the fuse block and here's what I found: With the key on, 1-6 dead 7 hot 8 dead 9-12 hot Are these towards the front of the car or rear as the fusepanel is mounted? When the fuse panel is in place (under the steering wheel), relays are toward the steering wheel and the fuses are toward the floor. And all that said....8 is always dead and that is why the wipers (theoretically) aren't working. But I'm assuming the hinkyness in the data may explain planty of other things too (keep in mind that all the heating has been removed so that wouldn't be part of the eqaution anyway) |
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| HalfMoon |
Aug 3 2013, 04:07 PM
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#36
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
Addedum (easier to read)
Key off- Key on- Key on/light switch on 1 dead dead dead 2 dead dead dead 3 dead dead hot 4 dead dead hot 5 dead dead hot 6 dead dead hot 7 dead hot hot 8 dead dead dead 9 dead hot hot 10 hot hot hot 11 hot hot hot 12 hot hot hot Previous observation of one side being hot, other being dead due to fuse connection, corrected for this test. All fuses test good and dressed with sandpaper as well as fuse box. |
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| HalfMoon |
Aug 10 2013, 06:32 PM
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#37
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Senior Member Group: Members Posts: 828 Joined: 13-November 12 From: Shenandoah Junction, WV Member No.: 15,144 Region Association: MidAtlantic Region |
I'm happy to report the problem is solved.
On 1973 they used a horn relay (Thanks Jeff) and if that relay is bad fuse block position #8 won't power up and...you guessed it, not only will the horn not work but anything on position #8 (including the wipers) won't work either! I swapped out a new relay and the wipers came on no problem. Also now I can hook up some horns (PO removed them) once I track down the wires for them. Soo....just need to get the horns going, license plate lights (already found what I think are the wires and they are hot), and the reverse lights and I can get it inspected and DRIVE the car (IMG:style_emoticons/default/driving-girl.gif) I think Monday I'll get the license plate lights going and the horns working. Thanks everyone for the patience and positive feedback helping me figure things out! We've done much together so far! Got the headlights working Got the flip ups installed and working Cut the fiberglass hood (for the flip ups) Got the wipers working Got power (theoretically) to the wires for the horns Found a solution to the reverse lights (without using a relay board) We are kicking butt together! |
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| 76-914 |
Aug 11 2013, 08:21 AM
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#38
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,505 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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Nice work. I would have missed that and burned my car down by now. (IMG:style_emoticons/default/dry.gif)
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| theleschyouknow |
Apr 13 2015, 07:31 PM
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#39
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Senior Member Group: Members Posts: 523 Joined: 4-June 13 From: Texas Member No.: 15,967 Region Association: None |
reviving an old(ish) thread
73 2.0 I have the same symptoms -no horn no wipers you have a pic of the horn relay? where it's located? thanks cjl |
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| Dave_Darling |
Apr 13 2015, 08:18 PM
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#40
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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The horn relay is on top of the fuse panel. The positions sometimes changed over the course of production (the socket just plugs into a hole in the panel) so it's best to check the wire colors going to the socket against the wiring diagram.
Look for red, red/white, black/yellow, and brown/white wires. --DD |
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