Nissan 350Z Workshop Manual 2003 (9) PDF | Page 20

BRC-20
[ABS]
TROUBLE DIAGNOSIS
Control Unit Input/Output Signal Standard
AFS00119
REFERENCE VALUE FROM CONSULT-II
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.
Monitor item Display Content
Data monitor
Reference: Error inspec-
tion checklist
Condition
Reference values
for normal opera-
tion
WHEEL SENSOR
Wheel speed calcu-
lated using signals
from all four wheel
sensors
Vehicle stopped 0 km/h (0 MPH)
BRC-32, "
Inspection 1
Wheel Sensor System"
While driving (Note 1)
Nearly matches
the speedometer
display ( 10% or
less)
IN ABS S/V
OUT ABS S/V
Operation status of all
solenoids
When the actuator solenoid
operates or during a fail-safe
ON
?
When the actuator relay oper-
ates and the actuator solenoid
does not operate
OFF
EBD warning lamp
Brake (EBD) warning
lamp on condition
(Note 2)
Brake (EBD) warning lamp ON ON
?
Brake (EBD) warning lamp
OFF
OFF
Stop lamp switch Brake pedal operation
Brake pedal depressed ON BRC-37, "
Inspection 6
Stop Lamp Switch Sys-
tem"
Brake pedal not depressed OFF
ABS motor relay
Motor and motor relay
operation status
When the motor relay and
motor are operating
ON
BRC-35, "
Inspection 5
ABS Actuator Relay or
ABS Motor Relay Power
System"
When the motor relay and
motor are not operating
OFF
ABS ACTUATOR
RELAY
Actuator relay opera-
tion status
When the actuator relay is
operating
OFF
BRC-35, "
Inspection 5
ABS Actuator Relay or
ABS Motor Relay Power
System"
When the actuator relay is not
operating
ON
ABS warning lamp
ABS warning lamp on
condition (Note 2)
ABS warning lamp ON ON
?
ABS warning lamp OFF OFF
Power supply voltage
Battery voltage sup-
plied to TCS/ABS con-
trol unit
Ignition switch ON 10 - 16V
BRC-34, "
Inspection 4
ABS Actuator and Elec-
tric Unit Power and
Ground Systems"
Gear
Determined gear shift
position from the A/T
PNP switch signal
Driving
M/T vehicles are
always left in 1.
?
Engine speed Engine running
With engine stopped 0 rpm
Engine speed signal sys-
tem
With engine running
Almost in accor-
dance with
tachometer display
Fail signal Fail signal status
During ABS fail-safe
During EBD fail-safe
OFF
ABS system
EBD system
CAN communication
CAN communication
condition
CAN communications normal OK
BRC-38, "
Inspection 8
CAN Communication
System"
CAN communication error NG
CAN system 1
CAN communication
condition
CAN communications normal OK
CAN communication error UNKWN
CAN system 2
CAN communication
condition
CAN communications normal OK
CAN communication error UNKWN