Crash occurred or crash sensor not available.
▶ How to fix
Check crash sensor. Check cables from sensor to ECU Reset the crash sensor if the cause was a crash.
What you'll see
auxiliary heater functionality is inhibit and it won’t start
System reaction
Fuel valve for the auxiliary heater is closed
Diagnostic depth
Detection
When a crash have occured or input signal to ECU have open circuit (should be ground or 24V)
Possible cause
possible cause: - crash sensor has been triggered by vehicle been in a crash - crash sensor input has open circuit, cable been cut or loosen