If replacing the bulb doesn't fix it, and you don't particularly care if the light genuinely functions, you could wire it to another bulb such as ABS or some lamp that comes on briefly with the ignition. Then at least you'll pass the test.

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-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition