Thread: S&M Lights

I've had these come up as well, when I had left the car in Drive and then, realising this, put it into Park whilst trying to start it. The reason for the limp home mode is that the transmission computer gets a signal it can't interpret and a result it 'protects' itself by going into limp home mode. A basic OBD scanner / reset tool from Jaycar (about $90) clears the fault. So, before doing a XYZ switch replace / repair, consider what else may have caused it. It may be the switch itself or how the auto was operated.

My LR mech does a small mod which directs air conditioning condensation away from the inhibitor switch. The moisture caused the s/w to fail and the M&S lights to come on. What they call a "common fault". I think the s/w price was a few hundred but now I source parts online and if I can't fit them myself, give them to the mech to do. Good luck.

Thanks For that, yes I extended the drain approx 6 mths ago so thought it was weird for it to happen now! I've pulled out the inhibitor switch and it looks brand new inside, no water ingress, gave it a spray with contact cleaner, resealed, re installed and yep the lights came back!
Next I replaced the battery although it didn't show any signs of failure but it was 3 years old so did it anyway and yep the lights returned!
My scangauge is still showing error code PO335 which is "crank angle sensor fault" but the car still runs fine so I'm not sure if this is just a fault that comes up due to the car going into limp mode or it's an actual fault with the sensor? I'm going to order a new sensor just to be sure.
If anyone else has any ideas or knowledge regarding if it could be the crank angle sensor your imput would be greatly appreciated as I'm starting to run out of options!!
Cheers Ted.