DTC B1321-87: Lost Communication with EMV Missing Message; DTC B1326-87: Lost Communication with Clock Device (Local-CAN) Missing Message [10/2022 - 10/2023]: Description

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Memory
B1321-87	Lost Communication with EMV Missing Message	DTC Detection Condition: IG+ voltage 9.5 to 11.5 V or higher Malfunction Status: Lost communication with radio receiver assembly	Harness or connector Combination meter assembly Radio receiver assembly Clock assembly Meter mirror sub-assembly (w/ Headup Display System)	DTC stored
B1326-87	Lost Communication with Clock Device (Local-CAN) Missing Message	DTC Detection Condition: IG+ voltage 9.5 to 11.5 V or higher Malfunction Status: Lost communication with clock assembly	Harness or connector Combination meter assembly Radio receiver assembly Clock assembly Meter mirror sub-assembly (w/ Headup Display System)	DTC stored

W/ HEADUP DISPLAY SYSTEM:

Pattern	DTC Output Part Name (Display on GTS)						Suspected Area (Malfunction Status)
	Combination Meter		Navigation System			Head Up Display
	B1321-87	B1326-87	U11D0-87	U11D1-87	U11D2-87	B1321-87
Pattern 1	◦	◦	◦	◦	◦	◦	Local bus (Open or short)
							Clock assembly (Internal malfunction)
							Meter mirror sub-assembly (Internal malfunction)
							Radio receiver assembly (Internal malfunction)
							Combination meter assembly (Internal malfunction)
Pattern 2	◦	◦	◦	-	-	-	Local bus branch line (Open)
Pattern 2	◦	◦	◦	-	-	-	Combination meter assembly (Internal malfunction)
Pattern 3	◦	-	-	-	-	◦	Radio receiver assembly (Internal malfunction)
Pattern 4	-	◦	-	-	◦	-	Local bus branch line (Open)
Pattern 4	-	◦	-	-	◦	-	Clock assembly (Internal malfunction)
Pattern 5	◦	◦	-	-	-	-	Combination meter assembly (Internal malfunction)

◦: DTC is output.-: DTC is not output

W/O HEADUP DISPLAY SYSTEM:

Pattern	DTC Output Part Name (Display on GTS)				Suspected Area (Malfunction Status)
	Combination Meter		Navigation System
	B1321-87	B1326-87	U11D0-87	U11D2-87
Pattern 1	◦	◦	◦	◦	Local bus (Open or short)
					Clock assembly (Internal malfunction)
					Radio receiver assembly (Internal malfunction)
					Combination meter assembly (Internal malfunction)
Pattern 2	◦	◦	◦	-	Local bus branch line (Open)
Pattern 2	◦	◦	◦	-	Combination meter assembly (Internal malfunction)
Pattern 3	◦	-	◦	◦	Radio receiver assembly (Internal malfunction)
Pattern 4	-	◦	-	◦	Local bus branch line (Open)
Pattern 4	-	◦	-	◦	Clock assembly (Internal malfunction)

◦: DTC is output.-: DTC is not output