Nissan Leaf. Manual — part 315
BRC-50
< SYSTEM DESCRIPTION >
[WITH VDC]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
WORK SUPPORT
Test item
Display item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY
On
On
Item
Description
ST ANGLE SENSOR ADJUSTMENT
Perform neutral position adjustment of steering angle sensor.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-51
< ECU DIAGNOSIS INFORMATION >
[WITH VDC]
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:0000000010120044
CONSULT DATA MONITOR STANDARD VALUE
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Monitor item
Condition
Reference values in normal operation
FR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±10%)
FR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±10%)
RR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±10%)
RR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±10%)
ACCEL POS SIG
Never depress accelerator pedal (with power switch
ON)
0%
Depress accelerator pedal (with power switch ON)
0 – 100%
SIDE G-SENSOR
Vehicle stopped
Approx. 0 m/s
2
Turning right
Negative value
Turning left
Positive value
BATTERY VOLT
Power switch ON
10 – 16 V
DECEL G-SEN
When stopped
−0.11 – 0.11 G
During acceleration
Negative value
During deceleration
Positive value
STR ANGLE SIG
When driving straight
0
±2.5°
When steering wheel is steered to RH by 90
°
Approx. +90
°
When steering wheel is steered to LH by 90
°
Approx.
−90°
PRESS SENSOR
Brake pedal not depressed
Approx. 0 bar
Brake pedal depressed
0 – 255 bar
YAW RATE SEN
Vehicle stopped
Approx. 0 d/s
Turning right
Negative value
Turning left
Positive value
FR RH IN SOL
*2
Active
On
Not activated
Off
FR RH OUT SOL
*2
Active
On
Not activated
Off
FR LH IN SOL
*2
Active
On
Not activated
Off
BRC-52
< ECU DIAGNOSIS INFORMATION >
[WITH VDC]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
FR LH OUT SOL
*2
Active
On
Not activated
Off
RR RH IN SOL
*2
Active
On
Not activated
Off
RR RH OUT SOL
*2
Active
On
Not activated
Off
RR LH IN SOL
*2
Active
On
Not activated
Off
RR LH OUT SOL
*2
Active
On
Not activated
Off
EBD WARN LAMP
When brake warning lamp is ON
*3
On
When brake warning lamp is OFF
*3
Off
STOP LAMP SW
Brake pedal depressed
On
Brake pedal not depressed
Off
ABS WARN LAMP
When ABS warning lamp is ON
*3
On
When ABS warning lamp is OFF
*3
Off
MOTOR RELAY
Active
On
Not activated
Off
ACTUATOR RLY
Active
On
Not activated (in fail-safe mode)
Off
OFF LAMP
When VDC OFF indicator lamp is ON
*3
On
When VDC OFF indicator lamp is OFF
*3
Off
OFF SW
VDC OFF switch ON
On
VDC OFF switch OFF
Off
SLIP/VDC LAMP
When VDC warning lamp is ON
*3
On
When VDC warning lamp is OFF
*3
Off
EBD SIGNAL
EBD is activated
On
EBD is not activated
Off
ABS SIGNAL
ABS is activated
On
ABS is not activated
Off
TCS SIGNAL
TCS is activated
On
TCS is not activated
Off
VDC SIGNAL
VDC is activated
On
VDC is not activated
Off
EBD FAIL SIG
In EBD fail-safe
On
EBD is normal
Off
ABS FAIL SIG
In ABS fail-safe
On
ABS is normal
Off
TCS FAIL SIG
In TCS fail-safe
On
TCS is normal
Off
VDC FAIL SIG
In VDC fail-safe
On
VDC is normal
Off
GEAR
Driving
D, R, N/P
Monitor item
Condition
Reference values in normal operation
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-53
< ECU DIAGNOSIS INFORMATION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
*1: Confirm tire pressure is standard value.
*2: Refer to “valve operation” in
for valve operation of each valve.
*3: Refer to
for ON/OFF conditions of each warning lamp and indicator lamp.
Fail-safe
INFOID:0000000010120045
VDC FUNCTION, TCS FUNCTION, BRAKE LIMITED SLIP DIFFERENTIAL (BLSD) FUNCTION,
BRAKE ASSIST FUNCTION
VDC warning lamp in combination meter turn ON when a malfunction occurs in system [ABS actuator and
electric unit (control unit)]. The control is suspended for VDC function, TCS function, brake limited slip differen-
tial (BLSD) function and brake assist function. The vehicle status becomes the same as models without VDC
function, TCS function, brake limited slip differential (BLSD) function and brake assist function. However, ABS
function and EBD function are operated normally.
ABS FUNCTION
ABS warning lamp and VDC warning lamp in combination meter turn ON when a malfunction occurs in system
[ABS actuator and electric unit (control unit)]. The control is suspended for VDC function, TCS function, ABS
function, brake limited slip differential (BLSD) function and brake assist function. The vehicle status becomes
the same as models without VDC function, TCS function, ABS function, brake limited slip differential (BLSD)
function and brake assist function. However, EBD function is operated normally.
NOTE:
ABS self-diagnosis sound may be heard the same as in the normal condition, because self-diagnosis is per-
formed when power switch turns ON and when vehicle initially starts.
EBD FUNCTION
ABS warning lamp, brake warning lamp and VDC warning lamp in combination meter turn ON when a mal-
function occurs in system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC
function, TCS function, ABS function, EBD function, brake limited slip differential (BLSD) function and brake
assist function. The vehicle status becomes the same as models without VDC function, TCS function, ABS
function, EBD function, brake limited slip differential (BLSD) function and brake assist function.
N POSI SIG
When selector lever is in the N position
On
When selector lever is in the other position than N
Off
P POSI SIG
When selector lever is in the P position
On
When selector lever is in the other position than P
Off
R POSI SIG
When selector lever is in the R position
On
When selector lever is in the other position than R
Off
FLUID LEV SW
When brake fluid level switch is ON (brake fluid level
is less than the specified level)
On
When brake fluid level switch is OFF
Off
CV1
*2
Active
On
Not activated
Off
CV2
*2
Active
On
Not activated
Off
SV1
*2
Active
On
Not activated
Off
SV2
*2
Active
On
Not activated
Off
STOP LAMP SW2
Brake pedal depressed
On
Brake pedal not depressed
Off
Monitor item
Condition
Reference values in normal operation
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