Nissan Teana J32. Instruction — part 244
BRC-34
< COMPONENT DIAGNOSIS >
[ABS]
C1121, C1123, C1125, C1127 OUT ABS SOL
C1121, C1123, C1125, C1127 OUT ABS SOL
Description
INFOID:0000000003767295
The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).
DTC Logic
INFOID:0000000003766774
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 “C1121”, “C1123”, “C1125” or “C1127” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003767296
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) connector.
3.
Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
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
>> Repair or replace damaged parts.
3.
CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT
Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.
DTC
Display item
Malfunction detected condition
Possible cause
C1121
FR LH OUT ABS SOL
When the control unit detects a malfunction in the front
LH outlet solenoid circuit.
ABS actuator and electric unit
(control unit)
C1123
FR RH OUT ABS SOL
When the control unit detects a malfunction in the front
RH outlet solenoid circuit.
C1125
RR LH OUT ABS SOL
When the control unit detects a malfunction in the rear LH
outlet solenoid circuit.
C1127
RR RH OUT ABS SOL
When the control unit detects a malfunction in the rear
RH outlet solenoid circuit.
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E34
3
Ground
Battery voltage
C1121, C1123, C1125, C1127 OUT ABS SOL
BRC-35
< COMPONENT DIAGNOSIS >
[ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace damaged parts.
Component Inspection
INFOID:0000000003767297
1.
CHECK ACTIVE TEST
1.
Select each test menu item on “ACTIVE TEST”.
2.
On the display, touch “Up”, “Keep” and “Down”, and check that the system operates as shown in the table
below.
*: On for 1 to 2 seconds after the touch, and then Off.
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is
an operation for checking.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to diagnosis procedure. Refer to
.
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E34
1
Ground
Existed
4
Test item
Display item
Display (Note)
Up
Keep
Down
FR RH SOL
FR RH IN SOL
Off
On
On
FR RH OUT SOL
Off
Off
On*
FR LH SOL
FR LH IN SOL
Off
On
On
FR LH OUT SOL
Off
Off
On*
RR RH SOL
RR RH IN SOL
Off
On
On
RR RH OUT SOL
Off
Off
On*
RR LH SOL
RR LH IN SOL
Off
On
On
RR LH OUT SOL
Off
Off
On*
BRC-36
< COMPONENT DIAGNOSIS >
[ABS]
C1140 ACTUATOR RELAY SYSTEM
C1140 ACTUATOR RELAY SYSTEM
Description
INFOID:0000000003766753
Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and
electric unit (control unit).
DTC Logic
INFOID:0000000003766754
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 “C1140” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003766755
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) connector.
3.
Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace damaged parts.
2.
CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
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
>> Repair or replace damaged parts.
3.
CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT
Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.
DTC
Display item
Malfunction detected condition
Possible cause
C1140
ACTUATOR RLY
During the actuator relay operating with OFF, when the
actuator relay turns ON, or when the control line for the
relay is shorted to the ground.
• Harness or connector
• ABS actuator and electric unit
(control unit)
During the actuator relay operating with ON, when the
actuator relay turns ON, or when the control line for the
relay is open.
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
C1140 ACTUATOR RELAY SYSTEM
BRC-37
< COMPONENT DIAGNOSIS >
[ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace damaged parts.
Component Inspection
INFOID:0000000003767291
1.
CHECK ACTIVE TEST
1.
On “ACTIVE TEST”, select “ABS MOTOR”.
2.
Touch “On” and “Off” on screen. Make sure motor relay and actuator relay operates as shown in table
below.
NOTE:
A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is
an operation for checking.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to diagnosis procedure. Refer to
.
Test item
Display item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY (Note)
On
On
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