P0380 Preheating unit control

			Test results
0	COMPONENT CONCERNED	PRELIMINARY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Preheating unit	Check if "Overtemperature" is shown in the error details	Go to Step 1	The error detail is "Overtemperature"	Go to Step 3
1	COMPONENT CONCERNED	ELECTRICAL CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Preheating unit wiring	Check for the presence of short circuit to Vbatt	Go to Step 2	Presence of short circuit to Vbatt.	Restore correct insulation to battery positive
2	COMPONENT CONCERNED	ELECTRICAL CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Preheating unit wiring	Check for short circuits to earth	Go to Step 3	Presence of short circuit to earth	Restore correct insulation to earth
3	COMPONENT CONCERNED	ELECTRICAL CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Preheating unit wiring	Check for an open circuit	End of diagnosis	Presence of open circuit	Restore the correct connections