[sailorbob]

The brake tell tale indicates one of three things:

Hand brake on
Brake fluid low
Accumulator pressure below 1800 psi

IIRC the handbrake and brake fluid low level switches are normally open and close to illuminate the tell tale so disconnecting them will reveal if one of them is the problem.

The accumulator pressure switch is normally closed unless the pressure drops below 1800 psi but the signal goes through the lamp driver module (which is basically a solid state relay) to invert it. Espritmon will indicate if this is he cause of the tell tale being illuminated.

 

[lotus4s]

Derek, I think a brake tail light bulb out will also throw the brake tell tale if I'm not mistaken...

 

[sailorbob]

I'm not sure the system is that smart but I have not removed a bulb to test this.

 

[carbuff]

I know you said you don't work the handle when parking, but I've had the wire to the parking brake switch break off, illuminating the lamp.

To inspect, you have to peel up the interior carpet on the doorsill, the switch is at the base of the PB assembly. Inspection is easier if the drivers seat is removed...and heck, you MIGHT find some loose change under it!