turn signals stopped working, just the indicators |
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turn signals stopped working, just the indicators |
malcolm2 |
Jan 25 2018, 08:10 PM
Post
#21
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States |
This happened to me before. I wish I could remember what I (or we) did to fix it. I did a search for my posts and it did not jump out at me. So if anyone remembers, or has recently repaired this, speak up....
OK here is the deal. I activate the turn signal lever and sometimes the dash indicator will blink twice. Most times not. I don't hear a CLICK when they do work. The Hazards do the same thing. The fuse is fine. The parking feature works fine on either side. Does everyone know that when the key is off and out, if you activate the signal lever, the lights come on on that side? Let know... |
Spoke |
Aug 11 2019, 06:19 PM
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#22
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Jerry Group: Members Posts: 7,052 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
From what you mentioned, sounds like there are 2 issues. Please correct me if I'm mistaken.
1) Left turnsignal indicator flashes on right turnsignal and Right indicator on left turnsignal. This is to be expected with EP26. Has more to do with the way Porsche wired the R and L indicators. See the top diagram below. Notice the LEFT indicator is connected to the RIGHT turnsignals and RIGHT indicator to the LEFT turnsignals. This is OEM. The OEM flasher connects pin K to 12V when flashing. For example, if the LEFT turnsignal is active, pin K is 12V and current flows through the LEFT indicator through the RIGHT turnsignal bulbs. Turnsignal bulbs are much less impedance and do not turn on, only the indicator turns on. This secondary relay connecting to pin K loses efficiency over time and doesn't work correctly as you have observed. With EP26, see bottom diagram. Now pin C2 (similar to K) is connected to ground. So now the LEFT indicator flashes with the RIGHT turnsignals. To fix this, pop out the tach and take the entire indicator assembly out, bulb and all and swap L to R. 2) Brake warning flashes all the time. Notice 2 switches; one for the e-brake and one for the MC. One of these wires is grounding at all times. If both switches are open, the brake warning bulb cannot light. Try disconnecting the MC wires then test. If still flashing, try disconnecting the e-brake switch. One of these 2 are always providing a path to ground for the warning light and flasher. |
Minerva's 914 |
Aug 11 2019, 06:40 PM
Post
#23
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Member Group: Members Posts: 378 Joined: 24-December 15 From: Chapel Hill, NC Member No.: 19,489 Region Association: South East States |
From what you mentioned, sounds like there are 2 issues. Please correct me if I'm mistaken. 1) Left turnsignal indicator flashes on right turnsignal and Right indicator on left turnsignal. This is to be expected with EP26. Has more to do with the way Porsche wired the R and L indicators. See the top diagram below. Notice the LEFT indicator is connected to the RIGHT turnsignals and RIGHT indicator to the LEFT turnsignals. This is OEM. The OEM flasher connects pin K to 12V when flashing. For example, if the LEFT turnsignal is active, pin K is 12V and current flows through the LEFT indicator through the RIGHT turnsignal bulbs. Turnsignal bulbs are much less impedance and do not turn on, only the indicator turns on. This secondary relay connecting to pin K loses efficiency over time and doesn't work correctly as you have observed. With EP26, see bottom diagram. Now pin C2 (similar to K) is connected to ground. So now the LEFT indicator flashes with the RIGHT turnsignals. To fix this, pop out the tach and take the entire indicator assembly out, bulb and all and swap L to R. 2) Brake warning flashes all the time. Notice 2 switches; one for the e-brake and one for the MC. One of these wires is grounding at all times. If both switches are open, the brake warning bulb cannot light. Try disconnecting the MC wires then test. If still flashing, try disconnecting the e-brake switch. One of these 2 are always providing a path to ground for the warning light and flasher. WOW! Thanks for the quick and informative reply! I'll study the post, research further and report back I LOVE 914world! Thx Spoke! |
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