Car: Mondeo 2009, 2.2 TDCi
I've been having non-start issues on the park heater w/ a B1D31 DTC (Flame detected prior to normal operation). So more than often, the park heater does not start, as requested by the timer. However while driving, the heater works perfectly in Aux Heater mode!
Any ideas what that DTC means in practice and what to do about it?
Another issue which bugs me is that Forscan shows only 12V even if an external battery charger is connected, and there is actually14.3V on the battery terminals. The battery as such appears to be in good condition:
- the engine starts effortlessly even if there is -20C, despite that the park heater has not been activated
- after a 12 hour standstill, battery voltage is 12.5V - almost full charge
Using ForScan, I've today commenced "Forced module reset" on the heater unit. Anyone out there has an idea what that reset does? At least, the heater started when selecting "Active now" on the dash display (with the external battery charger connected)...