Fail-Safe (Display Control Unit)

WARNING: This page is about a different car, the 2019 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

If a malfunction occurs in the Infiniti InTouch, display control unit performs fail-safe activation according to the detected malfunction.

Detection item	Infiniti InTouch operation in fail-safe mode		DTC
Engine speed signal	Active noise cancellation system and active sound enhancement system function are deactivated.		B1F01
Front microphone (LH)	Active noise cancellation function is deactivated.		B1F0B B1F0C B1F0D B1F0E
Front microphone (RH)	Active noise cancellation function is deactivated.		B1F10 B1F11 B1F12 B1F13
Rear microphone	Active noise cancellation function is deactivated.		B1F15 B1F16 B1F17 B1F18
CAN communication	The system using the CAN communication signal from control unit which cannot communicate does not function.		U1000
CAN communication	The system using the CAN communication signal does not function.		U1010
Display control unit	Display is not displayed. Display control unit restart. Display control unit freezes. NOTE: Symptom other than an item may occur.		U121F
Configuration	A function of display control unit becomes mismatched with a vehicle specification and destination.		U1223
BOSE amp.	BOSE system does not function.		U1231
Steering angle sensor	Predictive course line is not displayed.		U1232
NAVI control unit	Map is not displayed. Navigation screen does not operate. NOTE: Symptom other than an item may occur.		U1233
AV control unit	Sound is not output by a speaker. CD is not played. Radio does not operate. NOTE: Symptom other than an item may occur.		U1234
GPS antenna	The vehicle positions of a navigation screen differ.		U1244
AV communication	AV control unit	Sound is not output by a speaker. CD is not played. Radio does not operate. NOTE: Symptom other than an item may occur.	U1249
	BOSE amp.	Sound is not output by a speaker.	U124E
	Integral switch	Integral switch display is not displayed. Switch operation does not operate. Touch panel operation does not operate. NOTE: Symptom other than an item may occur.	U1259
	Around view monitor control unit	Camera image is not displayed.	U125B
	Combination meter	Audio information is not displayed by the information display in the combination meter. Navigation indicator is not displayed by the information display in the combination meter. Steering switch does not operate.	U1267
	Display control unit	The system of ECU which detected abnormalities does not operate.	U1300
	Display control unit	The system which is using AV communication does not operate.	U1310
Satellite radio antenna	Satellite radio is not received.		U1258
USB communication	NAVI control unit	A navigation menu cannot be selected (hatching display).	U125D
	TCU	Telematics system does not function.	U1266
	External data input box	Audio equipment which connected to USB does not operate.	U12B7
Rear view camera	Rear camera image is not displayed.		U12B8
Multifunction switch	Multifunction switch operation does not operate.		U12BA
Radio antenna	Radio is not received.		U12BE
Speaker/squawker/tweeter/woofer	With BOSE system
	Door woofer	No sound from door woofer LH or RH.	U1601 U1609
	Door squawker	No sound from door squawker LH or RH.	U1602 U160A
	Tweeter	No sound from tweeter LH or RH.	U1603 U160B
	Front squawker	No sound from front squawker LH or RH.	U1626 U162E
	Center squawker	No sound from center squawker.	U162A
	Rear squawker	No sound from rear squawker LH or RH.	U1716 U171E
	Rear woofer	No sound from rear woofer LH or RH.	U1721 U1729
	Without BOSE system
	Door speaker	No sound from door speaker LH or RH.	U1600 U1608
	Rear speaker	No sound from rear speaker LH or RH.	U1720 U1728