Nissan Ariya: Dtc/circuit Diagnosis

• B2f60-55 Seat Belt Buckle Sw (dr)
• Seat Belt Buckle Switch (driver Side)
• Rear Seat Belt Buckle Switch

B2f60-55 Seat Belt Buckle Sw (dr)

DTC Description

DTC DETECTION LOGIC

DTC No.	CONSULT screen items	DTC detecting condition
B2F60-55	Seat belt buckle switch (driver side)	Diagnosis condition	Power switch ON
		Signal (terminal)	—
		Threshold	Configuration of the BCM is not completed
		Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• BCM

• BCM is not configured

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

1. Power switch ON.

2. Check “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM CONFIGURATION (BCM)

1. Perform BCM configuration. Refer to Work Procedure.

2. Perform DTC CONFIRMATION PROCEDURE for B2F60–55. Refer to DTC Description.

Is the DTC detected?

YES>>

GO TO 2.

NO>>

INSPECTION END

REPLACE BCM

Replace BCM. Refer to Removal and Installation.

>>

INSPECTION END

Seat Belt Buckle Switch (driver Side)

Component Function Check

CHECK FUNCTION

1. Power switch ON.

2. Select “BCM” using CONSULT.

3. Select “Seat belt switch (driver)” in “DATA MONITOR” mode.

4. Check that the function operates normally according to the following conditions.

Monitor item	Condition		Status
Seat belt switch (driver)	Seat belt (driver side)	Unfastened	OFF
		Fastened	ON

Is the inspection result normal?

YES >>

Seat belt buckle switch (driver side) is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK SEAT BELT BUCKLE SWITCH INPUT SIGNAL

1. Power switch OFF.

2. Disconnect seat belt buckle switch (driver side) connector.

3. Power switch ON.

4. Check voltage between seat belt buckle switch (driver side) harness connector and ground.

   (+)		(–)	Voltage
   Seat belt buckle switch (driver side)
   Connector	Terminal
   B459	4	Ground	9 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK SEAT BELT BUCKLE SWITCH CIRCUIT

1. Power switch OFF.

2. Disconnect BCM connector.

3. Check continuity between seat belt buckle switch (driver side) harness connector and BCM harness connector.

   Seat belt buckle switch (driver side)		BCM		Continuity
   Connector	Terminal	Connector	Terminal
   B459	4	M8	17	Existed

4. Check continuity between BCM harness connector and ground.

   BCM		-	Continuity
   Connector	Terminal
   M8	17	Ground	Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

1. Power switch OFF.

2. Check continuity between seat belt buckle switch (driver side) harness connector and ground.

   Seat belt buckle switch (driver side)		-	Continuity
   Connector	Terminal
   B459	3	Ground	Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

Check seat belt buckle switch (driver side). Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace seat belt buckle (driver side). Refer to Removal & Installation.

Component Inspection

CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)

1. Power switch OFF.

2. Disconnect seat belt buckle switch (driver side) connector.

3. Check continuity of seat belt buckle switch (driver side) terminals.

   Seat belt buckle switch (driver side)		Condition		Continuity
   Terminal
   3	4	Seat belt (driver side)	Fastened	Not existed
   			Unfastened	Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace seat belt buckle (driver side). Refer to Removal & Installation.

Rear Seat Belt Buckle Switch

Diagnosis Procedure

CHECK REAR SEAT BELT BUCKLE SWITCH GROUND CIRCUIT

1. Power switch OFF.

2. Disconnect rear seat belt buckle switch connector.

3. Check the continuity between rear seat belt buckle switch harness connector and ground.

Rear seat belt buckle switch			—	Continuity
Connector		Terminal
LH	B17	4	Ground	Existed
Center	B18	4
RH		2

Is the inspection result normal?

YES>>

GO TO 2

NO>>

Repair or replace harness.

CHECK REAR SEAT BELT BUCKLE SWITCH

Check rear seat belt buckle switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace rear seat belt buckle. Refer to Removal & Installation.

Component Inspection

CHECK REAR SEAT BELT BUCKLE SWITCH

1. Power switch OFF.

2. Disconnect rear seat belt buckle switch connector.

3. Check continuity between rear seat belt buckle switch terminals.

   Rear seat belt buckle switch				Condition		Continuity
   Connector		Terminal
   LH	B17	3	4	Rear seat belt (LH)	Unfastened	Existed
   					Fastened	Not existed
   Center	B18	3	4	Rear seat belt (center)	Unfastened	Existed
   					Fastened	Not existed
   RH		1	2	Rear seat belt (RH)	Unfastened	Existed
   					Fastened	Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace rear seat belt buckle. Refer to Removal & Installation.