Nissan Maxima. Manual — part 259
C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR
BRC-57
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
2.
CHECK YAW RATE/SIDE/DECEL G SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch ON, then OFF.
2. Check voltage between yaw rate/side/decel G sensor connector
M55 terminal 4 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK YAW RATE/SIDE/DECEL G SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check resistance between yaw rate/side/decel G sensor con-
nector M55 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace malfunctioning components.
4.
CHECK YAW RATE/SIDE/DECEL G SENSOR HARNESS
1. Check continuity between ABS actuator and electric unit (control
unit) connector E26 (A) terminals 14 and 25 and yaw rate/side/
decel G sensor harness connector M55 (B) terminals 2 and 3.
2. Check continuity between ABS actuator and electric unit (control
unit) connector E26 (A) terminals 14, 25 and ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Repair or replace malfunctioning components.
5.
CHECK DATA MONITOR
1. Connect yaw rate/side/decel G sensor and ABS actuator and electric unit (control unit) connectors.
Yaw rate/side/decel G sensor
Ground
Condition
Voltage
(Approx.)
Connector
Terminal
M55
4
—
Ignition switch:
ON
Battery voltage
Ignition switch:
OFF
0V
ALFIA0019ZZ
Yaw rate/side/decel G sensor
Ground
Continuity
Connector
Terminal
M55
1
—
Yes
ALFIA0020ZZ
ABS actuator and electric unit
(control unit)
Yaw rate/side/decel G sensor
Continuity
Connector
Terminal
Connector
Terminal
E26 (A)
14
M55 (B)
2
Yes
25
3
ALFIA0021ZZ
ABS actuator and electric unit (control unit)
Ground
Continuity
Connector
Terminal
E26 (A)
14
—
No
25
BRC-58
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1145, C1146 YAW RATE/SIDE/DECEL G SENSOR
2. Perform the yaw rate/side/decel G sensor component inspection. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
BRC-106, "Removal and Installa-
.
NO
>> Replace yaw rate/side/decel G sensor. Refer to
BRC-108, "Removal and Installation"
Component Inspection
INFOID:0000000010049100
1.
CHECK DATA MONITOR
Select “YAW RATE SEN”, “SIDE G-SENSOR” in “DATA MONITOR” and check yaw rate/side/decel G sensor
signal.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Go to diagnosis procedure. Refer to
Special Repair Requirement
INFOID:0000000010049101
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-6, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
TRAL POSITION : Special Repair Requirement"
>> END
Vehicle condition
YAW RATE SEN (DATA MONITOR)
SIDE G-SENSOR (DATA MONITOR)
Stopped
Approx. 0 d/s
Approx. 0 m/s
2
Turning right
Negative value
Negative value
Turning left
Positive value
Positive value
C1147, C1148, C1149, C1150 USV/HSV LINE
BRC-59
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C1147, C1148, C1149, C1150 USV/HSV LINE
Description
INFOID:0000000010049102
USV1, USV2 (CUT VALVE)
The cut valve shuts off the normal brake fluid path from the master cylinder, when VDC/TCS is activated.
HSV1, HSV2 (SUCTION VALVE)
The suction valve supplies the brake fluid from the master cylinder to the pump, when VDC/TCS is activated.
DTC Logic
INFOID:0000000010049103
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010049104
Regarding Wiring Diagram information, refer to
1.
CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminals.
4. Reconnect connector and perform self-diagnosis. Refer to
BRC-21, "CONSULT Function (ABS)"
Is any item indicated on the self-diagnosis display?
YES
>> GO TO 2
DTC
Display item
Malfunction detected condition
Possible cause
C1147
USV LINE[FL-RR]
VDC switch-over solenoid valve (USV1) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
• Harness or connector
• ABS actuator and electric unit
(control unit)
C1148
USV LINE[FR-RL]
VDC switch-over solenoid valve (USV2) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
C1149
HSV LINE[FL-RR]
VDC switch-over solenoid valve (HSV1) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
C1150
HSV LINE[FR-RL]
VDC switch-over solenoid valve (HSV2) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
Self-diagnosis results
USV LINE[FL-RR]
USV LINE[FR-RL]
HSV LINE[FL-RR]
HSV LINE[FR-RL]
BRC-60
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1147, C1148, C1149, C1150 USV/HSV LINE
NO
>> Poor connection of connector terminals. Repair or replace connector.
2.
CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
3. Check voltage between ABS actuator and electric unit (control
unit) connector E26 terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) connector E26 terminals 1, 4 and ground.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
BRC-106, "Removal and Installation"
NO
>> Repair or replace malfunctioning components.
Component Inspection
INFOID:0000000010049105
1.
CHECK ACTIVE TEST
1. Select each test menu item on ”ACTIVE TEST“.
2. On the display, touch “Up”, “ACT UP”, and “ACT KEEP”, and check that the system operates as shown in
the table below.
ABS actuator and electric unit (control
unit)
Ground
Voltage
(Approx.)
Connector
Terminal
E26
3
—
Battery voltage
WFIA0499E
ABS actuator and electric unit (control
unit)
Ground
Continuity
Connector
Terminal
E26
1
—
Yes
4
ALFIA0007ZZ
Operation
ABS solenoid valve (ACT)
Up
ACT UP
ACT KEEP
FR RH ABS SOLENOID (ACT)
FR RH IN SOL
Off
Off
Off
FR RH OUT SOL
Off
Off
Off
USV[FL-RR]
Off
Off
Off
USV[FR-RL]
Off
On
On
HSV[FL-RR]
Off
Off
Off
HSV[FR-RL]
Off
On*
Off
FR LH ABS SOLENOID (ACT)
FR LH IN SOL
Off
Off
Off
FR LH OUT SOL
Off
Off
Off
USV[FL-RR]
Off
Off
Off
USV[FR-RL]
Off
On
On
HSV[FL-RR]
Off
Off
Off
HSV[FR-RL]
Off
On*
Off
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