Nissan Pathfinder. Manual — part 244
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-35
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
SLIP/VDC LAMP
(On/Off)
×
VDC warning lamp ON/OFF status is displayed.
(Note 1)
BATTERY VOLT
(V)
×
×
Voltage supplied to ABS actuator and electric unit (control
unit) is displayed.
GEAR
×
×
Current gear position judged from current gear position sig-
nal is displayed.
SLCT LVR POSI
×
×
Current gear position judged from current gear position sig-
nal is displayed.
ENGINE SPEED
(tr/min)
×
×
Engine speed status is displayed.
YAW RATE SEN
(d/s)
×
×
Yaw rate detected by yaw rate sensor is displayed.
R POSI SIG
(On/Off)
R range signal input status judged from R range signal is
displayed.
4WD MODE MON
(Note 2)
(AUTO/2WD/LOCK)
×
×
4WD control status is displayed.
N POSI SIG
(On/Off)
N range signal input status judged from N range signal is
displayed.
CV1
(On/Off)
Cut valve 1 operation status is displayed.
CV2
(On/Off)
Cut valve 2 operation status is displayed.
ACCEL POS SIG
(%)
×
Displays the Accelerator pedal position.
SIDE G -SENSOR
(m/s
2
)
×
Side G detected by side G sensor is displayed.
STR ANGLE SIG
(
°)
×
Steering angle detected by steering angle sensor is dis-
played.
PRESS SENSOR
(bar)
×
Brake fluid pressure detected by pressure sensor is dis-
played.
EBD SIGNAL
(On/Off)
EBD operation status is displayed.
ABS SIGNAL
(On/Off)
ABS operation status is displayed.
TCS SIGNAL
(On/Off)
TCS operation status is displayed.
VDC SIGNAL
(On/Off)
VDC operation status is displayed.
EBD FAIL SIG
(On/Off)
EBD fail-safe signal status is displayed.
ABS FAIL SIG
(On/Off)
ABS fail-safe signal status is displayed.
TCS FAIL SIG
(On/Off)
TCS fail-safe signal status is displayed.
VDC FAIL SIG
(On/Off)
VDC fail-safe signal status is displayed.
CRANKING SIG
(On/Off)
Cranking status is displayed.
FLUID LEV SW
(On/Off)
×
Brake fluid level signal input status via CAN communication
is displayed.
Item (Unit)
Monitor item selection
Note
ECU INPUT SIG-
NALS
MAIN SIGNALS
BRC-36
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
Note 1: Refer to
for ON/OFF conditions of each warning lamp and indicator
lamp.
Note 2: Models with 4WD System.
Note 3: USS means ‘‘hill start assist.’’
WORK SUPPORT
PARK BRAKE SW
(On/Off)
×
Parking brake switch signal input status via CAN communi-
cation is displayed.
USS SIG
(Note 3)
(On/Off)
hill start assist operation status is displayed.
Item (Unit)
Monitor item selection
Note
ECU INPUT SIG-
NALS
MAIN SIGNALS
Conditions
Description
ST ANGLE SENSOR ADJUSTMENT
Perform neutral position adjustment of steering angle sensor.
DECEL G SEN CALIBRATION
Perform decel G sensor calibration.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-37
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
ECU DIAGNOSIS INFORMATION
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference Value
INFOID:0000000009177258
CONSULT DATA MONITOR STANDARD VALUE
Monitor item
Condition
Reference values in normal operation
FR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±10%)
FR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±10%)
RR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±10%)
RR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving
(Note 1)
Nearly matches the speedometer dis-
play (within
±10%)
DECEL G-SEN
When stopped
Approx. 0 m/s
2
During acceleration
Positive value
During deceleration
Negative value
FR RH IN SOL
Active
On
Not activated
Off
FR RH OUT SOL
Active
On
Not activated
Off
FR LH IN SOL
Active
On
Not activated
Off
FR LH OUT SOL
Active
On
Not activated
Off
RR RH IN SOL
Active
On
Not activated
Off
RR RH OUT SOL
Active
On
Not activated
Off
RR LH IN SOL
Active
On
Not activated
Off
RR LH OUT SOL
Active
On
Not activated
Off
EBD WARN LAMP
When brake warning lamp is ON
(Note 2)
On
When brake warning lamp is OFF
(Note 2)
Off
STOP LAMP SW
Brake pedal depressed
On
Brake pedal not depressed
Off
MOTOR RELAY
Active
On
Not activated
Off
ACTUATOR RLY
Active
On
When not operating (in fail-safe mode)
Off
BRC-38
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
ABS WARN LAMP
When ABS warning lamp is ON
(Note 2)
On
When ABS warning lamp is OFF
(Note 2)
Off
OFF LAMP
When VDC OFF indicator lamp is ON
(Note 2)
On
When VDC OFF indicator lamp is OFF
(Note 2)
Off
OFF SW
When VDC OFF switch is ON
On
When VDC OFF switch is OFF
Off
SLIP/VDC LAMP
When VDC warning lamp is ON
(Note 2)
On
When VDC warning lamp is OFF
(Note 2)
Off
BATTERY VOLT
Ignition switch ON
10 – 16 V
GEAR
Driving
1 – 7
Depending on shift status
SLCT LVR POSI
Vehicle stopped
N/P
Depending on shift status
ENGINE SPEED
Engine stopped
0 tr/min
Engine running
Almost same reading as tachometer
YAW RATE SEN
Vehicle stopped
Approx. 0 d/s
Turning right
Negative value
Turning left
Positive value
R POSI SIG
When selector lever is in the R position
On
When selector lever is in the other position than R
Off
4WD MODE MON
(Note 3)
When 4WD shift switch is in AUTO position
AUTO
When 4WD shift switch is in 4H position
LOCK
When 4WD shift switch is in 2WD position
2WD
N POSI SIG
When selector lever is in the N position
On
When selector lever is in the other position than N
Off
CV1
Active
On
Not activated
Off
CV2
Active
On
Not activated
Off
ACCEL POS SIG
Never depress accelerator pedal
(with ignition switch ON)
0%
Depress accelerator pedal
(with ignition switch ON)
0 – 100%
SIDE G-SENSOR
Vehicle stopped
Approx. 0 m/s
2
Right turn
Negative value
Left turn
Positive value
STR ANGLE SIG
When driving straight
0
±2.5°
When steering wheel is steered to LH by 90
°
Approx. +90
°
When steering wheel is steered to RH by 90
°
Approx. –90
°
PRESS SENSOR
Brake pedal not depressed
Approx. 0 bar
Brake pedal depressed
(
−40) – (+300 bar)
EBD SIGNAL
EBD activated
On
EBD not activated
Off
ABS SIGNAL
ABS is activated
On
ABS is not activated
Off
Monitor item
Condition
Reference values in normal operation
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