Blinker Relay Question Options

[orbit398]

For some reason, the left blinkers no longer come on. I have check the bulbs and they are good. I replaced the fuses the other day and cleaned all the fuse holder contacts.

The right blinkers do come like normal. When I turn on the right blinkers, the relay works like it should. I removed the black relay cap and can see it operating properly. When I turn on the left blinkers, the relay does not work/move. The light filament in the bulbs are not on either.

Is it possible for the relay to only work for one side of the car? I figured the relay either worked or didn't work. Attached are two photos of the relay internals. The one post with a "C" designation appears to have gotten hot at some point and wonder if may be the issue.

Anyone know what the connectors are on the relay?
C =
49 =
49a =
31 =

[orbit398]

Update. - For what it's worth, may be helpful to others.

Last night I took the time to learn how to read the electrical wiring diagram and what the symbols ect are. Huge help.

Bypassed the turn signal relay by connecting a jumper wire between spot 49 and 49a. 49 is power in and 49a is power out to the steering column switch (control power to the right or left blinkers). 49a will usually have the 'pulsed' power which make the blinkers blink. Anyway, the jumper makes the power constant. So using the turn signal switch, I could only get the right side blinkers to come on.

Took off the knee pad under the dash and then the connections to the turn signal switch are available. I disconnected the turn signal switch connector (one towards the driver door/other one is the wiper connection). Following the diagram, there are three wires of concern, power coming in (black with white & green), which was constant due to the 49 jumper and then one wire going to the right blinkers and one to the left. Jumping across the power to the right side worked great (black with green), jump to the left (black with white), the rear bulb burn a little/nothing on the front bulb and the jumper wire was getting warm - an issue going one. So I dug into the connections of the front left blinker.

Long ago, when I rewired the front two blinkers, the little rubber boot that protects the connections was completely rotten. So when I reconnected the three wires there (running light, blinker, ground), I put gobs of silicon around it thinking that would be protect the connections. But in reality, I think it allowed corrosion to start as when I uncovered the black/white wire connection (turn signal wire), it was green looking. Cleaned up and using a test light to the connection, retried the left side connection from the turn signal switch and both rear and front left side worked just fine, with no heat in the jumper wire. One problem solved.

Rehooked up the connection to the turn signal switch but it still won't direct power to the left side, thus I think it's bad. Will remove it next to see if I can clean it up or just replace it.

Beer time for a bit....

[914Mike]

... Cleaned up and using a test light to the connection, retried the left side connection from the turn signal switch and both rear and front left side worked just fine, with no heat in the jumper wire. One problem solved.

Rehooked up the connection to the turn signal switch but it still won't direct power to the left side, thus I think it's bad. Will remove it next to see if I can clean it up or just replace it.

Beer time for a bit....

Sounds like you found and fixed the short that fried your turn signal switch, so you should be good to go with a new/fixed switch.