DTC B1321-87: Lost Communication with EMV Missing Message [07/2022 - ]: Procedure

1. Check for DTCs and proceed to the following step.

   Body Electrical > Combination Meter > Trouble Codes 

   Body Electrical > Navigation System > Trouble Codes 

   Body Electrical > Head Up Display > Trouble Codes 

   Pattern	GTS Display
   	Head Up Display	Navigation System			Combination Meter
   Pattern 1	B132187	U11D087	U11D187	U11D387*1	B132187
   Pattern 2	B132187	U11D087	-	-	-
   Pattern 3	B132187	-	-	-	B132187
   Pattern 4	B132187	-	-	-	-

   1. *1: w/ Wireless Charging System

   Result

   Result	Proceed to
   Pattern 1	A
   Pattern 2	B
   Pattern 3	C
   Pattern 4	D

Result: 

A 

GO TO METER / GAUGE SYSTEM (B132187). Refer to  DTC B1321-87: Lost Communication with EMV Missing Message [07/2022 - ] 

Result: 

C 

REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [07/2022 - ] 

Result: 

D 

REPLACE METER MIRROR SUB-ASSEMBLY. Refer to  REMOVAL [07/2022 - ] 

Result: 

B 

See step  2

1. Disconnect the cable from the negative (-) battery terminal.
2. Disconnect the F25 meter mirror sub-assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F25-14 (TX+) - F25-15 (TX-)	Cable disconnected from negative (-) battery terminal	54 to 69 Ω

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE METER MIRROR SUB-ASSEMBLY. Refer to  REMOVAL [07/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR