Inspection Procedure

SELF-DIAGNOSIS RESULT CHECK

Check self-diagnosis results.

Self-diagnosis results
YAW RATE SENSOR
SIDE G-SEN CIRCUIT

CAUTION: When on a turntable, such as at a parking structure entrance, or when on a moving object with the engine running, the VDC OFF indicator lamp might turn on and the self-diagnosis using the CONSULT the yaw rate sensor system might be displayed, but in this case there is no problem with the yaw rate sensor system. As soon as the vehicle leaves the turntable or moving object, restart the engine to return the system to normal.

Is the above displayed in the self-diagnosis display items?

YES: GO TO 2.

NO: Inspection End.

CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) and yaw rate/side/decel G sensor connectors. Check the terminals for deformation, disconnection, looseness or damage.

OK or NG

OK: GO TO 3.

NG: Repair or replace as necessary.

CHECK YAW RATE/SIDE/DECEL G SENSOR POWER SUPPLY CIRCUIT

Check voltage between yaw rate/side/decel G sensor connector B70 terminal 4 and ground.

Yaw rate/side/decel G sensor		Ground	Condition	Voltage (Approx.)
Connector	Terminal	Ground	Condition	Voltage (Approx.)
B70	4	-	Ignition switch: ON	Battery voltage
B70	4	-	Ignition switch: OFF	0V

Fig 1: Checking Voltage Between Yaw Rate/Side/Decel G Sensor Connector B70 Terminal 4 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: GO TO 4

NO: Repair or replace malfunctioning circuit.

CHECK YAW RATE/SIDE/DECEL G SENSOR GROUND SUPPLY CIRCUIT

Turn ignition switch OFF.

Check resistance between yaw rate/side/decel G sensor connector B70 terminal 1 and ground.

Yaw rate/side/decel G sensor		Ground	Continuity
Connector	Terminal	Ground	Continuity
B70	1	-	Yes

Is the inspection result normal?

YES: GO TO 5

NO: Repair or replace malfunctioning circuit.

Fig 2: Checking Resistance Between Yaw Rate/Side/Decel G Sensor Connector B70 Terminal 1 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

CHECK YAW RATE/SIDE/DECEL G SENSOR HARNESS

Check continuity between ABS actuator and electric unit (control unit) connector E33 (A) terminals 14 and 25 and yaw rate/side/decel G sensor connector B70 (B) terminals 2 and 3.

ABS actuator and electric unit (control unit)		Yaw rate/side/decel G sensor		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E33 (A)	14	B70 (B)	2	Yes
E33 (A)	25	B70 (B)	3	Yes

Check continuity between ABS actuator and electric unit (control unit) connector E33 (A) terminals 14, 25 and ground.

ABS actuator and electric unit (control unit)		Ground	Continuity
Connector	Terminal	Ground	Continuity
E33 (A)	14	-	No
E33 (A)	25	-	No

Is the inspection result normal?

YES: GO TO 6

NO: Repair or replace malfunctioning circuits.

Fig 3: Checking Continuity Between ABS Actuator And Electric Unit Connector E33 (A) Terminals And Yaw Rate/Side/Decel G Sensor Connector B70 (B) Terminals

Courtesy of NISSAN NORTH AMERICA, INC.

CHECK DATA MONITOR

Connect Yaw rate/side/decel G sensor and ABS actuator and electric unit (control unit) connectors.

Select "YAW RATE SEN", "SIDE G-SENSOR" in "Data Monitor" and check Yaw rate/side/decel G sensor signal.

Vehicle condition	Yaw rate sensor (Data monitor)	Side G sensor (Data monitor)
Stopped	Approx. 0 d/s	Approx. 0 m/s²
Turning right	Negative value	Negative value
Turning left	Positive value	Positive value

Is the inspection result normal?

YES: Replace ABS actuator and electric unit (control unit). Refer to REMOVAL AND INSTALLATION .

NO: Replace Yaw rate/side/decel G sensor. Refer to REMOVAL AND INSTALLATION .