This vehicle is equipped with a programmable speedometer/odometer module (PSOM), an electronic unit made to look like a conventional speedometer. This unit receives an AC signal from the DSS and drives the speedometer needle to indicate speed. It also converts this signal into a digital signal to pass on to the PCM and cruise control servo (if equipped). Since the DSS signal feeds the ABS module and the PSOM ... there was no ABS problem or light ... and the speedometer read correctly, its signal would be OK. The fault would be in the PSOM's ability to read and generate the appropriate signal to pass on.