In this video, we take a look at replacing the broken heater control panel, in a 2006 Vauxhall Astra Bertone Convertible, one of the last Astra Gs built. The Removing and Testing the Thermostat. If you are still unsure whether the thermostat is stuck, perform the following procedure to get an accurate diagnosis. Disconnect the negative battery cable. Drain some of the coolant (a gallon should be enough) so the fluid won't pour out when you perform the next step. Joined: Jun 2014. 3 04-18-2018, 10:55 AM. (04-18-2018, 12:18 AM)KIR73 Wrote: It's well known problem. The display unit is CAN gate for Climate control. Climate control ecu has no ignition wire it powers after can command. No display - no gate no can command and climate ecu simply didn't know tha ignition is on. This is an old Thermostat from Opel's XEP, XER, XEL enginer. It has heater which makes the thermostat to open sooner than 105 degrees designed.ECU heats it u How To Fix an Astra H with No Heat. CLICK HERE if your car heater is blowing cold/warm air! This easy and FREE fix will restore heat to your car! How to flush a heater matrix/core on a With your car not warning up properly, it's probably failing to dry the air. Once you get the thermostat fixed and if you're careful about not letting the aircon run just before you end a journey, you'll probably be fine again. Astra J 1.7CDTi 125 SRi 2011/11 owned for 7 years. Cigar lighter / power outlet fuses in the Opel Astra J are the fuses #6 (Power outlet front), #7 (Power outlet rear seat), #26 (Power outlet load compartment) in the Instrument panel fuse box, and fuse #17 (Power outlet) in the load compartment fuse box. It should only prevent it working on the slowest speed. See the pic below. By the way, Vauxhalls generally use Brown cable as the earth/neutral and have been for at least since the Mk2 Astra. Black normally means something else. If you connect it back up as normal it should work on every speed bar the slowest speed. EjFWpSf.