Hello all,

I have a 2000 Accord EX V6. I have the interior lighting level set as low as possible. When the car is barly moving the dash lights, clock light, HVAC controls light (everything that dims) starts to pulse as the car moves forward slowly. The speed of the pulse is proportional to the speed of the car. However, at very slow speeds the pulsing is actually quite annoying.

Does anyone what causes this? And, Is there a fix for it? I don't want to turn the lights up as I like them dim.

Thanks,
Steve

 

possible alternator problem

 

I thought about that, but it doesn't seem to be tied to engine RPM, just speed. Any one else have any ideas?

 

my "boom booms" causes this problem.

but i say alternator too.

 

Possibly a bad ground on your speedometer. It is an electronic counting device and reads the pulses from the speed sensor. A bad ground or connector on your guage package could result in this pulsing being feed through into other components. May also be a bad speedo itself causing the same signal feedthrough to the power side.

You can clear up the alternator theory by driving at say 25 mph in second gear and get a feel for how it is pulsing. Repeat at 25mph in THIRD gear - pulsing slower then it may be the alternator, pulsing the same - then something in the guage cluster is likely to blame. You could also pull the VSS connector and drive it - if the pulsing quits, then it has to be in the guage cluster.