eternal981

did the instrument cluster diagnostic test today... i've been meaning to for a while, because every once in a while the odometer gets weird. so here's what i got:

D041 SCP Invalid or missing data for Vehicle Speed
D123 SCP Invalid or missing data for Odometer

the 2nd one explains the odometer acting weird. never noticed anything wrong w/ the speedo. regardless.....any idea what i should start looking at to fix those? it only happens once every few months.

FastStang

THERE IS A SPEEDSENSOR ON YOUR TRANSMITION WHERE THE DRIVESHAFT COMES OFF THAT WOULD BE UR PROBLEM DO YOU HAVE AFTERMARKET GEARS OR TRANSMITION ?

eternal981

wouldn't that throw a code in the computer? these codes are specifically for the instrument panel, the way i understand it.

FastStang

STHE CODE THAT U ARE GETTING IS FROM THE INSTRUMENT CLUSTER THAT IS TRYING TO GET INFO FROM THE SENSOR AND IS GETTING NOTHING, THE SENSOR ITSELF WON'T GIVE U CODE ONLY THOSE COMPONENTS THAT REQUIERE INFORMATION FROM IT, IF YOU WANT TO BE COMPLETLE SURE... PERFORME A DIGITAL DIAGNOSE FROM THE CLUSTER WITH THE IGNITION OFF PRESS THE LIL STICK IN THE CLUSTER AND TURN ON THE IGNITION HOLD IT FOR 3 SECONDS AND THE WORD GAUGES SHOULD COME OFF AND AS YOU PRESS THE STICK NEW INFORMATION COMES OUT IN THE DIGITAL DISPLAY ONE OF THEM IS THE EXACT READING FROM THAT SPEED SENSOR, DRIVE THE CAR AND IF IT GIVES YOU WEIRD DATA U KNOW THE SENSOR IS WORNG AND IF EVERYTHIN IN THE DIGITAL DISPLAY WORKS AND UR ODOMETER KEEPS MESSING UP THEN U KNOW IS THE CLUSTER, LET ME KNOW HOW IT WENT