Nissan Titan. Instruction — part 36
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-85
< 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:0000000009883726
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short-circuited.
CONSULT MONITOR ITEM
Monitor item
Display content
Data monitor
Condition
Reference value in
normal operation
FR LH SENSOR
Wheel speed
0 [km/h (MPH)]
Vehicle stopped
Nearly matches the speed meter display
(
± 10% or less)
Vehicle running
(Note 1)
FR RH SENSOR
Wheel speed
0 [km/h (MPH)]
Vehicle stopped
Nearly matches the speed meter display
(
± 10% or less)
Vehicle running
(Note 1)
RR LH SENSOR
Wheel speed
0 [km/h (MPH)]
Vehicle stopped
Nearly matches the speed meter display
(
± 10% or less)
Vehicle running
(Note 1)
RR RH SENSOR
Wheel speed
0 [km/h (MPH)]
Vehicle stopped
Nearly matches the speed meter display
(
± 10% or less)
Vehicle running
(Note 1)
DECEL G-SEN
Longitudinal acceleration detected by Decel
G-Sensor
Vehicle stopped
Approx. 0 G
Vehicle running
-1.7 to 1.7 G
FR RH IN SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
FR RH OUT SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
FR LH IN SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
FR LH OUT SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
BRC-86
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
RR RH IN SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
RR RH OUT SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
RR LH IN SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
RR LH OUT SOL
Operation status of each solenoid valve
Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)
ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
EBD WARN LAMP
EBD warning lamp
(Note 2)
When EBD warning lamp is ON
ON
When EBD warning lamp is OFF
OFF
STOP LAMP SW
Stop lamp switch signal status
When brake pedal is depressed
ON
When brake pedal is released
OFF
MOTOR RELAY
Motor and motor relay operation
When the motor relay and motor are op-
erating
ON
When the motor relay and motor are not
operating
OFF
ACTUATOR RLY
Actuator relay operation
When the actuator relay is operating
ON
When the actuator relay is not operating
OFF
ABS WARN LAMP
ABS warning lamp
(Note 2)
When ABS warning lamp is ON
ON
When ABS warning lamp is OFF
OFF
OFF LAMP
VDC OFF indicator lamp
(Note 2)
When VDC OFF indicator lamp is ON
ON
When VDC OFF indicator lamp is OFF
OFF
OFF SW
VDC OFF switch ON/OFF
VDC OFF switch ON
(When VDC OFF indicator lamp is ON)
ON
VDC OFF switch OFF
(When VDC OFF indicator lamp is OFF)
OFF
SLIP LAMP
SLIP indicator lamp
(Note 2)
When SLIP indicator lamp is ON
ON
When SLIP indicator lamp is OFF
OFF
BATTERY VOLT
Battery voltage supplied to the ABS actuator
and electric unit (control unit)
Ignition switch ON
10 – 16 V
GEAR
Gear position determined by TCM
1st gear
2nd gear
3rd gear
4th gear
5th gear
1
2
3
4
5
Monitor item
Display content
Data monitor
Condition
Reference value in
normal operation
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-87
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
SLCT LVR POSI
A/T selector lever position
P position
R position
N position
D position
P
R
N
D
ENGINE SPEED
With engine running
With engine stopped
0 rpm
Engine running
Almost in accor-
dance with tachome-
ter display
YAW RATE SEN
Yaw rate detected by yaw rate/side/decel G
sensor
When vehicle is stopped
Approx. 0 d/s
When vehicle turning
−75 to 75 d/s
R POSI SIG
Transmission range switch signal ON/OFF
condition
A/T shift position = R position
ON
A/T shift position = other than R position
OFF
N POSI SIG
Transmission range switch signal ON/OFF
condition
A/T shift position = N position
ON
A/T shift position = other than N position
OFF
P POSI SIG
Transmission range switch signal ON/OFF
condition
A/T shift position = P position
ON
A/T shift position = other than P position
OFF
CV1
VDC switch-over valve
When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT) or
actuator relay is inactive (when in fail-
safe mode)
ON
When actuator (switch-over valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
CV2
VDC switch-over valve
When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT) or
actuator relay is inactive (when in fail-
safe mode)
ON
When actuator (switch-over valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
SV1
VDC switch-over valve
When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT) or
actuator relay is inactive (when in fail-
safe mode)
ON
When actuator (switch-over valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
SV2
VDC switch-over valve
When actuator (switch-over valve) is ac-
tive (“ACTIVE TEST” with CONSULT) or
actuator relay is inactive (when in fail-
safe mode)
ON
When actuator (switch-over valve) is not
active and actuator relay is active (igni-
tion switch ON)
OFF
2WD/4WD
Drive axle
2WD model
2WD
4WD model
4WD
ACCEL POS SIG
Throttle actuator opening/closing is dis-
played (linked with accelerator pedal)
Accelerator pedal not depressed (ignition
switch is ON)
0 %
Accelerator pedal depressed (ignition
switch is ON)
0 - 100 %
Monitor item
Display content
Data monitor
Condition
Reference value in
normal operation
BRC-88
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
SIDE G-SENSOR
Transverse G detected by side G sensor
Vehicle stopped
Approx. 0 m/s
2
Vehicle turning right
Negative value
(m/s
2
)
Vehicle turning left
Positive value
(m/s
2
)
STR ANGLE SIG
Steering angle detected by steering angle
sensor
Straight-ahead
Approx. 0
±2.5°
Steering wheel turned
–720 to +720
°
BST OPER SIG
Brake booster operation is displayed
Brake booster is active
ON
Brake booster is inactive
OFF
PRESS SENSOR
Brake fluid pressure detected by front pres-
sure sensor
With ignition switch turned ON and brake
pedal released
Approx. 0 bar
With ignition switch turned ON and brake
pedal depressed
–40 to 300 bar
EBD SIGNAL
EBD operation
EBD is active
ON
EBD is inactive
OFF
ABS SIGNAL
ABS operation
ABS is active
ON
ABS is inactive
OFF
TCS SIGNAL
TCS operation
TCS is active
ON
TCS is inactive
OFF
VDC SIGNAL
VDC operation
VDC is active
ON
VDC is inactive
OFF
ABS FAIL SIG
ABS fail-safe signal
In ABS fail-safe
ON
ABS is normal
OFF
TCS FAIL SIG
TCS fail-safe signal
In TCS fail-safe
ON
TCS is normal
OFF
VDC FAIL SIG
VDC fail-safe signal
In VDC fail-safe
ON
VDC is normal
OFF
CRANKING SIG
Crank operation
Crank is active
ON
Crank is inactive
OFF
FLUID LEV SW
Brake fluid level switch signal status
When brake fluid level switch ON
ON
When brake fluid level switch OFF
OFF
PRESS SEN2
Brake fluid pressure detected by rear pres-
sure sensor
With ignition switch turned ON and brake
pedal released
Approx. 0 bar
With ignition switch turned ON and brake
pedal depressed
–40 to 300 bar
DELTA S SEN
Value detected by delta stroke sensor
When brake pedal is depressed
1.05 - 1.80 mm
When brake pedal is released
0.00 mm (+0.6/-0.4)
RELEASE SW NO
Active booster signal status
When brake pedal is depressed
ON
When brake pedal is released
OFF
RELEASE SW NC
Active booster signal status
When brake pedal is depressed
OFF
When brake pedal is released
ON
OHB FAIL
OHB fail safe signal
OHB is active
ON
OHB is inactive
OFF
Monitor item
Display content
Data monitor
Condition
Reference value in
normal operation
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