Turn Signal Trouble Shooting

[Buzz]

I just replaced the turn signal switch on the steering column because it would not return to center and I could get no flash on the right side. New switch clicks as it should but still no right side flash. Suggestions appreciated.

[rmel]

The Swiss turn signal switch is way more complicated than need be
They are a PITA to debug.

But...check your connections back to the Emergency switch, should be two wires.
A Black/Purple and a Black/Green. These lines provide the "blinking" power to the
turn switch. Could just be a loose or poor connection.

Failing that a multi-meter is your best friend.

[Buzz]

Thanks, I will check that. FWIW, the truck is Austrian. But, a loose connection makes sense.

[rmel]

Oh! The Austrian turn signal switch is simpler.

[rmel]

Didn't know I had a copy of the Austrian version schematic, attached. It's simple !

On the Swiss version the front and rear turn signals are separated and essentially a dual circuit
for front and rear and two blink sources from the hazard switch.

The Austrian is one circuit for left and one circuit for right with a common blink source. So if you
are not blinking on the right side but are blinking on the left that isolates your problem down.
Either a bad connection to the right terminal on the directional switch or all your bulbs on the
bad side are dead or a corroded connections.

The stock blinker needs a load on it to blink e.g. the filaments of the light bulbs.

Schematic-1.JPG (3.21 MiB) Viewed 195 times

[Buzz]

Perfect! Thanks for your time!

[rollingpinz]

I have a Swiss and had the same issue. The right turn wire coming out of the turn signal switch plugs into a 3-way junction and one of the wires slipped off because it was loose. (Large hands and tiny work space) You may have to trace the connections back a little further.
Best of luck.