Kurt,
I've had my 4/4 from new 2011. Never seen that light on either. Today I tried the redundant switch. Yep Air Con light comes on, but only if the fan switch is on also.
Interesting I wonder where the air con wire tails, protrude from the the wiring loom.
Wondering if it would be OK to leave the switch on & use the telltale light as a reminder the heater fan is running. Whatever seems to blow my ideas of using the switch for some spots/fog lights.
