LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (Rear View Monitor System) (Except Hybrid) >> Ecu Diagnosis Information >> Display Control Unit >> Fail-Safe (Display Control Unit)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fail-Safe (Display Control Unit)

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 Active noise cancellation function is deactivated. B1F0B
B1F0C
B1F0D
B1F0E
CAN communication The system using the CAN communication signal from control unit which cannot communicate does not function. U1000
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
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
Front door woofer No sound from front door woofer LH or RH. U1601
U1609
Front door squawker No sound from front door squawker LH or RH. U1602
U160A
Front door tweeter No sound from front door tweeter LH or RH. U1603
U160B
Front squawker No sound from front squawker LH or RH. U1626
U162E
Front center squawker No sound from front center squawker. U162A
Rear door speaker No sound from rear door speaker LH or RH. U1708
U1710
Rear satellite speaker No sound from rear satellite speaker LH or RH. U1722
U172A
Rear woofer No sound from rear woofer. U1725
Without BOSE system
Front door speaker No sound from front door speaker LH or RH. U1600
U1608
Rear door speaker No sound from rear door speaker LH or RH. U1708
U1710