Cadillac Catera and Cimarron Forum Discussion, 1998 Catera DTC PO501 Vss 'A' in Past Cadillac Vehicle Discussion; 98 Catera speedometer/odometer not working.
TC/ABS lights illuminated.
DTC PO501 vehicle speed sensor 'A' range/performance code.
Where is this sensor ...
Then you have a malfunction in the ABS/TC module.
Could be a sensor, there are four, two near the differential en one at each front wheel or the ABS ecu or just a bad connection plug.
Could be the plug on the ABS/TC module itself that makes a bad connection.
Go to a dealer and let them read out the ABS/TC with a Tech2.
There is no speedimpulse If the ABS/TC is does not working.