Nissan Maxima. Instruction — part 256
C1120, C1122, C1124, C1126 IN ABS SOL
BRC-45
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
3. Check voltage between ABS actuator and electric unit (control
unit) connector E26 terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) connector E26 terminals 1, 4 and ground.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
BRC-106, "Removal and Installation"
NO
>> Repair or replace malfunctioning components.
Component Inspection
INFOID:0000000010049077
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.
ABS actuator and electric unit (control
unit)
Ground
Voltage
(Approx.)
Connector
Terminal
E26
3
—
Battery voltage
WFIA0499E
ABS actuator and electric unit (control
unit)
Ground
Continuity
Connector
Terminal
E26
1
—
Yes
4
ALFIA0007ZZ
Operation
ABS solenoid valve
Up
Keep
Down
FR RH SOL
FR RH IN SOL
Off
On
On
FR RH OUT SOL
Off
Off
On*
USV[FL-RR]
Off
Off
On*
USV[FR-RL]
Off
Off
On*
HSV[FL-RR]
Off
Off
On*
HSV[FR-RL]
Off
Off
On*
FR LH SOL
FR LH IN SOL
Off
On
On
FR LH OUT SOL
Off
Off
On*
USV[FL-RR]
Off
Off
On*
USV[FR-RL]
Off
Off
On*
HSV[FL-RR]
Off
Off
On*
HSV[FR-RL]
Off
Off
On*
BRC-46
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1120, C1122, C1124, C1126 IN ABS SOL
*: On for 1 to 2 seconds after the touch, and then Off
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Go to diagnosis procedure. Refer to
Special Repair Requirement
INFOID:0000000010049078
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-6, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
TRAL POSITION : Special Repair Requirement"
>> END
RR RH SOL
RR RH IN SOL
Off
On
On
RR RH OUT SOL
Off
Off
On*
USV[FL-RR]
Off
Off
On*
USV[FR-RL]
Off
Off
On*
HSV[FL-RR]
Off
Off
On*
HSV[FR-RL]
Off
Off
On*
RR LH SOL
RR LH IN SOL
Off
On
On
RR LH OUT SOL
Off
Off
On*
USV[FL-RR]
Off
Off
On*
USV[FR-RL]
Off
Off
On*
HSV[FL-RR]
Off
Off
On*
HSV[FR-RL]
Off
Off
On*
Operation
ABS solenoid valve
Up
Keep
Down
C1121, C1123, C1125, C1127 OUT ABS SOL
BRC-47
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C1121, C1123, C1125, C1127 OUT ABS SOL
Description
INFOID:0000000010049079
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:0000000010049080
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010049081
Regarding Wiring Diagram information, refer to
1.
CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminals.
4. Reconnect connector and perform self-diagnosis. Refer to
BRC-21, "CONSULT Function (ABS)"
Is any item indicated on the self-diagnosis display?
YES
>> GO TO 2
NO
>> Poor connection of connector terminals. Repair or replace connector.
2.
CHECK SOLENOID AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
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.
Self-diagnosis results
FR LH OUT ABS SOL
FR RH OUT ABS SOL
RR LH OUT ABS SOL
RR RH OUT ABS SOL
BRC-48
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1121, C1123, C1125, C1127 OUT ABS SOL
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
3. Check voltage between ABS actuator and electric unit (control
unit) connector E26 terminal 3 and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace malfunctioning components.
3.
CHECK SOLENOID AND ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) connector E26 terminals 1, 4 and ground.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
BRC-106, "Removal and Installation"
NO
>> Repair or replace malfunctioning components.
Component Inspection
INFOID:0000000010049082
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.
ABS actuator and electric unit (control
unit)
Ground
Voltage
(Approx.)
Connector
Terminal
E26
3
—
Battery voltage
WFIA0499E
ABS actuator and electric unit (control
unit)
Ground
Continuity
Connector
Terminal
E26
1
—
Yes
4
ALFIA0007ZZ
Operation
ABS solenoid valve
Up
Keep
Down
FR RH SOL
FR RH IN SOL
Off
On
On
FR RH OUT SOL
Off
Off
On*
USV[FL-RR]
Off
Off
On*
USV[FR-RL]
Off
Off
On*
HSV[FL-RR]
Off
Off
On*
HSV[FR-RL]
Off
Off
On*
FR LH SOL
FR LH IN SOL
Off
On
On
FR LH OUT SOL
Off
Off
On*
USV[FL-RR]
Off
Off
On*
USV[FR-RL]
Off
Off
On*
HSV[FL-RR]
Off
Off
On*
HSV[FR-RL]
Off
Off
On*
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