August 25, 2009

The correct functioning of these switches not only affects your turn signals, but also brake lights. I have found the source of problems is usually broken wires where they are attached to the switch underneath the brown plastic cover.
If the switch still doesn't work, look for a defective coil.

Fig. 1 shows the switch after removal from the dash. That can be an
interesting exercise in itself.

Fig. 2 First step is to remove the rivet holding the brown plastic cover.
I have found it easier to carefully drill out from the underside.

Fig. 3 Bend back the tabs holding the silver metal cover and carefully remove it.
There are some small springs inside the switch.
One is visible between the two plastic sliding parts.
The others are under the brass contacts.

Fig. 4 Be careful not to break the small wire attached to the coil.

Fig. 5 Clean all the contact points with TV tuner cleaner or similar
and then apply some dielectric grease.

Fig. 6 Replace the pivot piece.

Fig. 7 Replace the metal cover and bend the tabs back.

Fig. 8 Use small bolts with lock washers & nuts in place of the rivets.

Fig. 9 Ensure the bolts are short enough to allow the plate attached
to the lever to pass over them.

Fig. 10 If you have to re-solder some of the wires, this is where they go.