StefanSlaw

Correction. I used a CD4001 CMOS 2 input NOR gate chip on the prototype, not a 74HCTxx 2 input NOR gate chip. We have one Legacy and one Forester both are 2015s. I have researched this problem a lot and designed a breadboard solution that works sand a mechanical only fix. I will post the shorter relocation of the relay post that should be of interest to some. Keywords, phrases, threads: Forester "Wife has trouble hearing the turn signal flasher" Forester "Turn Signal Low Volume" and "flasher turn signal problem" "Turn signal flasher relay issues" https://legacygt.com/forums/showthread.php/turn-signal-flasher-relay-issuses-204243.html Start my post: I have done some further research on the Forester part number 86111AJ001 Denso Flasher. I found three schematic/block diagrams of sorts on the net. 1. Subaruforester.org/attachments/wiring-diagram-1-PDF.1745/ is not that helpful in deciphering what is going on. Relay base or socket is not an 8 pin B32 configuration, like the models below. This STI and WRX PDF is better on page WI-80. 2. http://www.voisin.ch/subaru/docs_techniques/2008_impreza_wrx_&_sti_manuel_atelier/sti/sti_wiring_sys.pdf Corrected link, April 26,2021, PDF, section 23, page WI-80. 3. https://www.subaruoutback.org/threads/flasher-turn-signal-problem.134665/ See comment post #9, by "plain OM", dated March 22, 2014. There is a good diagram on page WI-151. Print it out. It also has letter color codes on page WI-6. 4. More on the pinouts and functions are described later on, are below. New fix and relocation procedure I found out by accident and now use. I discovered that you can detach the mounting pin/clip/grommet/push-pin mounting for this "relay plus a PCB inside" from the bottom of my dash board instrument deck. You just have to pry it out sideways or whatever works. It will not be reused. The relay and wiring will hang down about six inches. Remove the left part of the D-panel as described before by me including releasing the one side latch, the one Philips screw, and the side "boomerang" shaped black panel by the door. Rotate the panel down and let it hang. It will. Underneath the steering column and to the left a few inches is a sort of shelf with a black felt piece attached to this horizontal part of the remaining other D-panel mounting structure. Pull the felt towards the driver's seat and hold it there. Wipe that now exposed black plastic surface and all the sides of the relay assembly with rubbing alcohol. Cut a piece of 3M automotive molding mounting tape about one inch long and 1/8" wide to minimize sound deadening of the relay when mounted. Place it near the back edge of the flat black plastic self. Remove the red tape. Press mount the relay so that the semi-clear whitish grommet is towards on the left side on the relay. Push the relay down until flat and the Denso " writing is towards the driver's seat. You only need to have the relay attached at the back of this black plastic shelf piece. Heat a Tic Tac candy box label with a mini-torch flame to slightly wrinkle the label foil with that heat. Peel the label off slowly. Clean up any remaining adhesive with rubbing alcohol. Then, place three strips of 3M double backed tape sold in a Yellow Plaid Roll running from the bottom to the top of the box. Do not touch the tape adhesive or overlap the strips at all. They will hold just fine. Center the clear box side to side and top to bottom on the relay and press down slightly. Put a pencil or two inside the box and press the box down stoutly to mount it to the relay assemble. The box will stick out from under the steering column space below the column slightly to the left and into the cabin. This Tic Tac box is a known megaphone fix elsewhere and it does work. It is not a powered amplifier. I cut half a McDonald's quarter pounder box in half and cut a slot in it on the right inside edge to hang around the wiring harness, behind the relay, and to reflect sound towards the cabin. This is the loudest sound I could get the flasher to make and without horrible electronics circuitry and surgery inside the relay assembly itself. I breadboarded a prototype interface using two NOR gates (CMOS "CD4001") with one +15 Volt supply for all of these items), a 4N33 opto-isolator, and a piezo electric "speaker". That's a different posting to come. <snip> Skipped the schematic until I get it drawn up. Ditto the "how the circuit works. 4. Relay base plate pinout numbers and short functions: This reference link is: https://www.subaruoutback.org/threads/flasher-turn-signal-problem.134665/page-2 These pinout wire colors vary widely by models and years for the same 86111AJ001 part number relay assembly with its own PCB inside. (Lexus and Scion use this part too.) My 2015 Forester: some stripes I was not able to see if it existed or what the color of the wire "tracer" stripe was. So, I marked the stripe as /? Some of the wire colors might have a stripe but I didn't see one on some wires with my inspection mirror. Colors on your unit might vary. 2015 Forester Pin nos. wire color/stripe color function of pin (Function is the same for all cars below.) ---------- ------------------------------- ------------------------------------------------------------------------ 1 White Fuse block #11, Ign. switched 2 Red/? Right Turn signal bulbs. 3 Pink Left Turn signal bulbs. 4 Wht/Black Main fuse # 14, Ign. switched. 5 Lite Blue/Black? Left turn signal ground for dash signal Light. 6 Green/Black Right turn signal ground for dash signal Light. 7 Solid Black Earth or Car Ground. 8 White/Green Hazard always on. Grd it to turn on Hazard Lights. 20?? Outback Unknown year. Pin nos. wire color/stripe color function like above. ---------- ------------------------------- -------------------------- 1 Green/ Black 2 Red/Yellow 3 Lite Blue/Yellow 4 White/Black 5 Blue/Black 6 Red/Black 7 Black 8 Violet/Black 2008 STI and WRX Pin nos. wire color/stripe color function like above. ---------- ----------------------- -------------------- 1 Green/Black 2 Gray 3 White/Red 4 White/Black 5 Blue/Black 6 Red/Black 7 Black 8 Green Pin out rows and numbers arrangement. Finding the lone pin 3 determines the orientation of your plug or socket. Pin layouts: --------------- 1, 2, -, -, 3 4, 5, 6, 7, 8 --------------- -, - is the connector key way notch location. More Denso 'relay assembly' images. https://legacygt.com/forums/showthread.php/tap-turn-signals-31995.html Images of a circuit like Tap-Turn and shows some relay holes exist in some Denso's. https://legacygt.com/forums/showthread.php/tap-turn-signals-31995p2.html Page numbers might change over time. Poster is "scottmcphee", 04-18-2008 9:24 AM. Thanks for that posting. It helped me understand the circuit operation. HTH for right now, Stefen