DTC B1321-87: Lost Communication with EMV Missing Message [12/2021 - ]: Procedure

1. Check vehicle condition.

   Result

   Result	Proceed to
   w/ Headup Display System	A
   w/o Headup Display System	B

Result: 

B 

See step  9

Result: 

A 

See step  2

1. Check if meter/gauge system DTCs are output.

   Body Electrical > Combination Meter > Trouble Codes 

2. Check if audio and visual system DTCs are output.

   Body Electrical > Navigation System > Trouble Codes 

3. Check if headup display system DTCs are output.

   Body Electrical > Head Up Display > Trouble Codes 

4. Check for the DTCs and output pattern according to the following table.

   Pattern	DTC Output Part Name (Display on GTS)
   	Combination Meter	Navigation System			Head up Display
   Pattern 1	B1321-87	U11D0-87	U11D3-87*	U11D3-87	B1321-87
   Pattern 2	B1321-87	U11D0-87	-	-	-
   Pattern 3	B1321-87	-	-	-	-
   Pattern 4	B1321-87	-	-	-	B1321-87

   *: w/ Wireless Charging System, except 4-Passenger

   Result

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

Result: 

B 

See step  6

Result: 

C 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

D 

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

A 

See step  3

Pre-procedure1

• Disconnect the I17 meter mirror sub-assembly connector.

• Clear the DTCs.

  Body Electrical > Combination Meter > Clear DTCs 

• Check for DTCs.

  Body Electrical > Combination Meter > Trouble Codes 

  Result

  Result	Proceed to
  B1321-87 is output.	A
  B1321-87 is not output.	B

Post-procedure1

• None

Result: 

B 

REPLACE METER MIRROR SUB-ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

A 

See step  4

1. Check vehicle condition.

   Result

   Result	Proceed to
   w/ Wireless Charging System, except 4-Passenger	A
   w/o Wireless Charging System or w/ Wireless Charging System, for 4-Passenger	B

Result: 

B 

See step  7

Result: 

A 

See step  5

Pre-procedure1

• Disconnect the I202 mobile wireless charger cradle assembly connector.

• Clear the DTCs.

  Body Electrical > Combination Meter > Clear DTCs 

• Check for DTCs.

  Body Electrical > Combination Meter > Trouble Codes 

  Result

  Result	Proceed to
  D11D387 is output.	A
  D11D387 is not output.	B

Post-procedure1

• None

Result: 

A 

See step  7

Result: 

B 

REPLACE MOBILE WIRELESS CHARGER CRADLE ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Pre-procedure1

• Disconnect the cable from the negative (-) battery terminal.
• Disconnect the I5 combination meter assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  I5-14 (MSCH) - I5-30 (MSCL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

Pre-procedure1

• Disconnect the cable from the negative (-) battery terminal.
• Disconnect the I5 combination meter assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  I5-14 (MSCH) - I5-30 (MSCL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω
  I5-14 (MSCH) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I5-30 (MSCL) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I5-14 (MSCH) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
  I5-30 (MSCL) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

See step  8

Pre-procedure1

• Disconnect the cable from the negative (-) battery terminal.
• Disconnect the I197 multi-media module receiver assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  I197-11 (CNH1) - I197-12 (CNL1)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω
  I197-11 (CNH1) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I197-12 (CNL1) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I197-11 (CNH1) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
  I197-12 (CNL1) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

1. Check if meter/gauge system DTCs are output.

   Body Electrical > Combination Meter > Trouble Codes 

2. Check if audio and visual system DTCs are output.

   Body Electrical > Navigation System > Trouble Codes 

3. Check for the DTCs and output pattern according to the following table.

   Pattern	DTC Output Part Name
   	Combination Meter	Navigation System
   Pattern 1	B1321-87	U11D0-87	U11D3-87*
   Pattern 2	B1321-87	-	-

   *: w/ Wireless Charging System, except 4-Passenger

   Result

   Result	Proceed to
   Pattern 1 is output	A
   Pattern 2 is output	B

Result: 

B 

See step  14

Result: 

A 

See step  10

1. Check vehicle condition.

   Result

   Result	Proceed to
   w/ Wireless Charging System, except 4-Passenger	A
   w/o Wireless Charging System or w/ Wireless Charging System, for 4-Passenger	B

Result: 

B 

See step  12

Result: 

A 

See step  11

Pre-procedure1

• Disconnect the I202 mobile wireless charger cradle assembly connector.

• Clear the DTCs.

  Body Electrical > Combination Meter > Clear DTCs 

• Check for DTCs.

  Body Electrical > Combination Meter > Trouble Codes 

  Result

  Result	Proceed to
  B1321-87 is output.	A
  B1321-87 is not output.	B

Post-procedure1

• None

Result: 

A 

See step  12

Result: 

B 

REPLACE MOBILE WIRELESS CHARGER CRADLE ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Pre-procedure1

• Disconnect the cable from the negative (-) battery terminal.
• Disconnect the I5 combination meter assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  I5-14 (MSCH) - I5-30 (MSCL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω
  I5-14 (MSCH) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I5-30 (MSCL) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I5-14 (MSCH) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
  I5-30 (MSCL) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

See step  13

Pre-procedure1

• Disconnect the cable from the negative (-) battery terminal.
• Disconnect the I197 multi-media module receiver assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition
  I197-11 (CNH1) - I197-12 (CNL1)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω
  I197-11 (CNH1) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I197-12 (CNL1) - I76-4 (CG)	Cable disconnected from negative (-) battery terminal	200 Ω or higher
  I197-11 (CNH1) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher
  I197-12 (CNL1) - I76-16 (BAT)	Cable disconnected from negative (-) battery terminal	6 kΩ or higher

  Result

  Proceed to
  OK
  NG

Result: 

OK 

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

Pre-procedure1

• Disconnect the I5 combination meter assembly connector.

• Using an oscilloscope, check the waveform.

  OK

  Tester Connection	Switch Condition	Tool Setting	Specified Condition
  I5-14 (MSCH) - I5-30 (MSCL)	Ignition switch ON	1 V/DIV., 100 μs./DIV.	Pulse generation

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [12/2021 - ] 

Result: 

NG 

REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2021 - ]