Lt46 wrote:
I've never had to remove a control stick so I can't answer that. Vacuuming the contact plate and surrounding area has always helped when things got wonky. The yellow light signal comes from the level sensor mounted in one of your exterior compartments. The red light should light if it senses the parking brake is engaged. Have you tried stepping on and releasing the p-brake a few times to see if that will get the red light to come on?
You don't remove the stick just the knobs on top of the 3 control sticks and the top plate comes right off after removing 4 screws. You would be surprised to see the dirt and stuff under the plate. The center one will spin when you unscrew the knob so you have to hold the shaft.