Nissan Teana J32. Manual — part 245
BRC-38
< COMPONENT DIAGNOSIS >
[ABS]
U1000, U1002 CAN COMM CIRCUIT
U1000, U1002 CAN COMM CIRCUIT
Description
INFOID:0000000003766819
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
INFOID:0000000003766820
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch ON.
2.
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC “U1000” or “U1002” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003766821
1.
PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC “U1000” or “U1002” detected?
YES
>> Proceed to diagnosis procedure. Refer to
LAN-14, "Trouble Diagnosis Flow Chart"
.
NO
>> INSPECTION END
DTC
Display item
Malfunction detected condition
Possible cause
U1000
CAN COMM CIRCUIT
When ABS actuator and electric unit (control unit) is not
transmitting or receiving CAN communication signal for 2
seconds or more.
• CAN communication line
• ABS actuator and electric unit
(control unit)
U1002
SYSTEM COMM (CAN)
When ABS actuator and electric unit (control unit) is not
transmitting or receiving CAN communication signal for 2
seconds or less.
POWER SUPPLY AND GROUND CIRCUIT
BRC-39
< COMPONENT DIAGNOSIS >
[ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
POWER SUPPLY AND GROUND CIRCUIT
Description
INFOID:0000000003766827
Supplies power to ABS actuator and electric unit (control unit).
Diagnosis Procedure
INFOID:0000000003766828
1.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
4.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
5.
Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform the trouble diagnosis for power supply circuit.
2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY
1.
Turn the ignition switch OFF.
2.
Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Perform the trouble diagnosis for power supply circuit.
3.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND
Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace damaged parts.
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E34
18
Ground
Approx. 0 V
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E34
18
Ground
Battery voltage
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E34
3
Ground
Battery voltage
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E34
1
Ground
Existed
4
BRC-40
< COMPONENT DIAGNOSIS >
[ABS]
ABS WARNING LAMP
ABS WARNING LAMP
Description
INFOID:0000000003766836
×
: ON –: OFF
Component Function Check
INFOID:0000000003766837
1.
CHECK ABS WARNING LAMP OPERATION
Check that the lamp illuminates for approximately 1 second after the ignition switch is turned ON.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to diagnosis procedure. Refer to
.
Diagnosis Procedure
INFOID:0000000003766838
1.
CHECK SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check items displayed by self-diagnosis.
2.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace combination meter.
Condition
ABS warning lamp
Ignition switch OFF
–
For 1 second after turning ignition switch ON
×
1 second later after turning ignition switch ON
–
ABS function is malfunctioning.
×
EBD function is malfunctioning.
×
BRAKE WARNING LAMP
BRC-41
< COMPONENT DIAGNOSIS >
[ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
BRAKE WARNING LAMP
Description
INFOID:0000000003766839
×
: ON –: OFF
NOTE:
• 1: Brake warning lamp will turn on in case of parking brake operation (when switch is ON) or of brake fluid level switch operation
(when brake fluid is insufficient).
• 2: After starting the engine, brake warning lamp is turned off.
Component Function Check
INFOID:0000000003766840
1.
BRAKE WARNING LAMP OPERATION CHECK 1
Check that the lamp illuminates for approximately 1 second after the ignition switch is turned ON.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Proceed to diagnosis procedure. Refer to
.
2.
BRAKE WARNING LAMP OPERATION CHECK 2
Check that the brake warning lamp in the combination meter turns ON/OFF correctly when operating the park-
ing brake pedal.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Check parking brake switch.
Diagnosis Procedure
INFOID:0000000003766841
1.
CHECK PARKING BRAKE SWITCH
Check that the brake warning lamp in the combination meter turns ON/OFF correctly when operating the park-
ing brake pedal.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check parking brake switch.
2.
CHECK SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check items displayed by self-diagnosis.
3.
CHECK COMBINATION METER
Check if the indication and operation of combination meter are normal. Refer to
.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace combination meter.
Condition
Brake warning lamp (Note 1)
Ignition switch OFF
–
For 1 second after turning ignition switch ON
×
(Note 2)
1 second later after turning ignition switch ON
×
(Note 2)
EBD function is malfunctioning.
×
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