4. Use a Scanner to Determine if the VSS is Reporting any Speed. Plug a good scanner into the OBD II port. You can configure it to report the vehicle's speed as reported by the VSS. If it says 0 MPH while driving, the VSS has likely caused your Opel Corsa's speedometer to stop working. Heater resistor not working 2 weeks after replacing it (Astra H) I have an Astra H 1.6, 77 kW, Z16XEP with an automatic climate control. My heater fan started acting up a few weeks ago. Basically it would get stuck on one intensity setting and only occasionaly would react to me turning the knob. .

opel astra heater not working