DTC B1575: GVIF Disconnected (from EMV/MM Integrated Device to Multi Display) [08/2019 - ]: Procedure

1. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

2. Turn the power switch off.
3. Recheck for DTCs and check that no DTCs are output.

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

Result: 

NG 

See step  2

1. Disconnect the J165 multi-display assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Radio Receiver Assembly)
   *b	Front view of wire harness connector (to Multi-display Assembly)

2. Disconnect the J166 radio receiver assembly connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J166-2 (GVI+) - J165-1 (GV+)	Always	Below 1 Ω
   J166-1 (GVI-) - J165-2 (GV-)	Always	Below 1 Ω
   J166-3 (GVG1) - J165-3 (GVG)	Always	Below 1 Ω
   J166-2 (GVI+) or J165-1 (GV+) - Body ground	Always	10 kΩ or higher
   J166-1 (GVI-) or J165-2 (GV-) - Body ground	Always	10 kΩ or higher
   J166-3 (GVG1) or J165-3 (GVG) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Replace the multi-display assembly with a new or known good one.

   Refer to REMOVAL [08/2019 - ]

2. Clear the DTCs.

   Body Electrical > Navigation System > Clear DTCs 

3. Turn the power switch off.
4. Recheck for DTCs and check that no DTCs are output.

   Body Electrical > Navigation System > Trouble Codes 

   OK

   No DTCs are output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE) 

Result: 

NG 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [08/2019 - ]