captiva vss sensor
 

The speedo , rpm and cruise control not working, threads state vss harness or connection need checked but i cannot find a location diagram. also is there a diy version to switch off engine management light. HELP...

until you fix the problem the check engine light will just reset. you need a scan tool to erase codes. it could very well be a vss problem but you should get the codes read to find a starting point for diagnosis.