LS 400 instrument cluster
I have a 1990 LS400 and the instrument cluster is going wacky. First off the speedometer is reading 15 mph slower than actual speed. Also the indicator light that says there is a burned out tail light is on but all of the tail light bulbs are working. When I am driving the car and step on the brake pedal the brakes grab slightly and the "R" lights up on the shift light column and the dash light turns off. I am guessing I need to replace the instrument gauge cluster but would appreciate any input if anyone else has experienced this.