display NISSAN TEANA 2008 Service Manual
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![NISSAN TEANA 2008 Service Manual DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-13
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DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
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C NISSAN TEANA 2008 Service Manual DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
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DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
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C](/img/5/57391/w960_57391-953.png)
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-13
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DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
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CONSULT-III FunctionINFOID:0000000003766730
FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
SELF DIAGNOSTIC RESULT
Operation Procedure
Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for approxi-
mately 1 minute.
Display Item List
Refer to BRC-48, "DTC No. Index".
How to Erase Self-diagnosis Results
After erasing DTC memory, start the engine and drive the vehicle at 30 km/h (19 MPH) or more for approxi-
mately 1 minute as the final inspection, and make sure that the ABS warning lamp and brake warning lamp
turn OFF.
CAUTION:
If memory cannot be erased, perform applicable diagnosis.
NOTE:
When the wheel sensor malfunctions, after inspecting the wheel sensor system, ABS warning lamp and
brake warning lamp will not turn OFF even when the system is normal unless the vehicle is driven at approx-
imately 30 km/h (19 MPH) or more for approximately 1 minute.
Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or in case of brake
fluid level switch operation (when brake fluid is insufficient).
DATA MONITOR
Display Item List
×: Applicable : Optional item
Diagnostic test mode Function
Self diagnostic result Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the ABS actuator and electric unit (control unit) can be read.
Active testCONSULT-III drives some actuators apart from ABS actuator and electric unit (control unit) and
also shifts some parameters in a specified range.
ECU identification ABS actuator and electric unit (control unit) part number can be read.
Monitor item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN SIGNALS
FR LH SENSOR
[km/h (MPH)]××Wheel speed calculated by front LH wheel sensor signal
FR RH SENSOR
[km/h (MPH)]××Wheel speed calculated by front RH wheel sensor signal
RR LH SENSOR
[km/h (MPH)]××Wheel speed calculated by rear LH wheel sensor signal
RR RH SENSOR
[km/h (MPH)]××Wheel speed calculated by rear RH wheel sensor signal
STOP LAMP SW
(On/Off)××Stop lamp switch signal status
BATTERY VOLT
(V)××Battery voltage supplied to the ABS actuator and electric
unit (control unit)
Page 955 of 5121
![NISSAN TEANA 2008 Service Manual BRC-14
< FUNCTION DIAGNOSIS >[ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
NOTE:
1: A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON NISSAN TEANA 2008 Service Manual BRC-14
< FUNCTION DIAGNOSIS >[ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
NOTE:
1: A brief moment of On/Off condition occurs every 20 seconds after ignition switch turned ON](/img/5/57391/w960_57391-954.png)
BRC-14
< FUNCTION DIAGNOSIS >[ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
NOTE:
1: 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.
ACTIVE TEST
CAUTION:
• Do not perform active test while driving vehicle.
Make sure to completely bleed air from brake system.
The active test cannot be started when ABS warning lamp and brake warning lamp are ON.
ABS warning lamp and brake warning lamp are ON during active test.
NOTE:
When active test is performed while depressing the pedal, the pedal depression amount will change. This is
normal. (Only solenoid valve and ABS motor.)
“TEST IS STOPPED” is displayed 10 seconds after operation start.
After “TEST IS STOPPED” is displayed, to perform test again.
Test Item
ABS SOLENOID VALVE
Touch “Up”, “Keep” and “Down”. Then use screen monitor to check that solenoid valve operates as shown in
the table below.
FR RH IN SOL
(On/Off) (Note 1)×
Operation status of each solenoid valve FR RH OUT SOL
(On/Off) (Note 1)×
FR LH IN SOL
(On/Off) (Note 1)×
FR LH OUT SOL
(On/Off) (Note 1)×
RR RH IN SOL
(On/Off) (Note 1)×
RR RH OUT SOL
(On/Off) (Note 1)×
RR LH IN SOL
(On/Off) (Note 1)×
RR LH OUT SOL
(On/Off) (Note 1)×
MOTOR RELAY
(On/Off)×Motor and motor relay operation
ACTUATOR RLY
(On/Off) (Note 1)×Actuator relay operation
ABS WARN LAMP
(On/Off)×ABS warning lamp
EBD WARN LAMP
(On/Off)Brake warning lamp
EBD SIGNAL
(On/Off)EBD operation
ABS SIGNAL
(On/Off)ABS operation
EBD FAIL SIG
(On/Off)EBD fail-safe signal
ABS FAIL SIG
(On/Off)ABS fail-safe signal Monitor item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN SIGNALS
Page 956 of 5121
![NISSAN TEANA 2008 Service Manual DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
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< FUNCTION DIAGNOSIS >[ABS]
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*: On for 1 to 2 seconds after the touch, and then Off.
NOTE:
A br NISSAN TEANA 2008 Service Manual DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-15
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*: On for 1 to 2 seconds after the touch, and then Off.
NOTE:
A br](/img/5/57391/w960_57391-955.png)
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
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*: 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.
ABS MOTOR
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.
ECU IDENTIFICATION
ABS actuator and electric unit (control unit) part number can be read.
Test item Display itemDisplay (Note)
Up Keep Down
FR RH SOLFR RH IN SOL Off On On
FR RH OUT SOL Off Off On*
FR LH SOLFR LH IN SOL Off On On
FR LH OUT SOL Off Off On*
RR RH SOLRR RH IN SOL Off On On
RR RH OUT SOL Off Off On*
RR LH SOLRR LH IN SOL Off On On
RR LH OUT SOL Off Off On*
Test item Display itemDisplay
On Off
ABS MOTORMOTOR RELAY On Off
ACTUATOR RLY (Note) On On
Page 957 of 5121
![NISSAN TEANA 2008 Service Manual BRC-16
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
COMPONENT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR
DescriptionINFOID:0000000003766731
When the sensor rotor rotates NISSAN TEANA 2008 Service Manual BRC-16
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
COMPONENT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR
DescriptionINFOID:0000000003766731
When the sensor rotor rotates](/img/5/57391/w960_57391-956.png)
BRC-16
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
COMPONENT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR
DescriptionINFOID:0000000003766731
When the sensor rotor rotates, the magnetic field changes. Wheel sensor converts the magnetic field changes
to current signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000003766732
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
1. Start the engine and drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC
“C1101”, “C1102”, “C1103” or “C1104” detected?
YES >> Proceed to diagnosis. Refer to BRC-16, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003766733
CAUTION:
Do not check between wheel sensor terminals.
1.CHECK TIRES
Check air pressure, wear and size. Refer to WT-5, "
Tire Air Pressure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.CHECK SENSOR AND SENSOR ROTOR
Check sensor rotor for damage.
Check wheel sensor for damage, disconnection or looseness.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.
3.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Disconnect malfunctioning wheel sensor connector.
4. Check terminal to see if it is deformed, disconnected, looseness, etc.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts.
DTC Display item Malfunction detected condition Possible cause
C1101 RR RH SENSOR-1Circuit of rear RH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
Harness or connector
Wheel sensor
ABS actuator and electric unit
(control unit) C1102 RR LH SENSOR-1Circuit of rear LH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
C1103 FR RH SENSOR-1Circuit of front RH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
C1104 FR LH SENSOR-1Circuit of front LH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
Page 959 of 5121
![NISSAN TEANA 2008 Service Manual BRC-18
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
3. Check wheel sensor signal. Refer to BRC-18, "Component Inspection".
Is the inspection result normal?
YES >> Replace ABS a NISSAN TEANA 2008 Service Manual BRC-18
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
3. Check wheel sensor signal. Refer to BRC-18, "Component Inspection".
Is the inspection result normal?
YES >> Replace ABS a](/img/5/57391/w960_57391-958.png)
BRC-18
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
3. Check wheel sensor signal. Refer to BRC-18, "Component Inspection".
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Repair or replace damaged parts.
Component InspectionINFOID:0000000003766734
1.CHECK DATA MONITOR
On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-
SOR”, and check the vehicle speed.
NOTE:
Confirm tire pressure is normal.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to diagnosis procedure. Refer to BRC-16, "
Diagnosis Procedure".
Wheel sensor Condition Vehicle speed (DATA MONITOR)
FR LH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
FR RH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
RR LH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
RR RH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
Page 960 of 5121
![NISSAN TEANA 2008 Service Manual C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-19
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C1105, C1106, C1107, C1108 WHEEL SENSOR
DescriptionINFOID:0000000003767288
When the sensor NISSAN TEANA 2008 Service Manual C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-19
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C1105, C1106, C1107, C1108 WHEEL SENSOR
DescriptionINFOID:0000000003767288
When the sensor](/img/5/57391/w960_57391-959.png)
C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-19
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C1105, C1106, C1107, C1108 WHEEL SENSOR
DescriptionINFOID:0000000003767288
When the sensor rotor rotates, the magnetic field changes. Wheel sensor converts the magnetic field changes
to current signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000003766737
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
1. Start the engine and drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC
“C1105”, “C1106”, “C1107” or “C1108” detected?
YES >> Proceed to diagnosis. Refer to BRC-19, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003767289
CAUTION:
Do not check between wheel sensor terminals.
1.CHECK TIRES
Check air pressure, wear and size. Refer to WT-5, "
Tire Air Pressure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.CHECK SENSOR AND SENSOR ROTOR
Check sensor rotor for damage.
Check wheel sensor for damage, disconnection or looseness.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.
3.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Disconnect malfunctioning wheel sensor connector.
DTC Display item Malfunction detected condition Possible cause
C1105 RR RH SENSOR-2When the circuit in the rear RH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.
Harness or connector
Wheel sensor
ABS actuator and electric unit
(control unit) C1106 RR LH SENSOR-2When the circuit in the rear LH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.
C1107 FR RH SENSOR-2When the circuit in the front RH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.
C1108 FR LH SENSOR-2When the circuit in the front LH wheel sensor is short-cir-
cuited. Or when the distance between the wheel sensor
and sensor rotor is too large and the sensor pulse cannot
be recognized by the control unit.
Page 962 of 5121
![NISSAN TEANA 2008 Service Manual C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-21
< COMPONENT DIAGNOSIS >[ABS]
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NO >> Repair or replace damaged parts.
6.CHECK DATA MONITOR
1. Turn the ignition switch OFF NISSAN TEANA 2008 Service Manual C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-21
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NO >> Repair or replace damaged parts.
6.CHECK DATA MONITOR
1. Turn the ignition switch OFF](/img/5/57391/w960_57391-961.png)
C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-21
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NO >> Repair or replace damaged parts.
6.CHECK DATA MONITOR
1. Turn the ignition switch OFF.
2. Connect each wheel sensor connector.
3. Check wheel sensor signal. Refer to BRC-21, "
Component Inspection".
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Repair or replace damaged parts.
Component InspectionINFOID:0000000003767290
1.CHECK DATA MONITOR
On “DATA MONITOR”, select “FR LH SENSOR”, “FR RH SENSOR”, “RR LH SENSOR”, and “RR RH SEN-
SOR”, and check the vehicle speed.
NOTE:
Confirm tire pressure is normal.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to diagnosis procedure. Refer to BRC-19, "
Diagnosis Procedure".
Wheel sensor Condition Vehicle speed (DATA MONITOR)
FR LH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
FR RH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
RR LH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
RR RH SENSORVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note)Nearly matches the speedometer display
(± 10% or less)
Page 963 of 5121
![NISSAN TEANA 2008 Service Manual BRC-22
< COMPONENT DIAGNOSIS >[ABS]
C1109 POWER AND GROUND SYSTEM
C1109 POWER AND GROUND SYSTEM
DescriptionINFOID:0000000003766741
Supplies electric power to the ABS actuator and electric unit (contro NISSAN TEANA 2008 Service Manual BRC-22
< COMPONENT DIAGNOSIS >[ABS]
C1109 POWER AND GROUND SYSTEM
C1109 POWER AND GROUND SYSTEM
DescriptionINFOID:0000000003766741
Supplies electric power to the ABS actuator and electric unit (contro](/img/5/57391/w960_57391-962.png)
BRC-22
< COMPONENT DIAGNOSIS >[ABS]
C1109 POWER AND GROUND SYSTEM
C1109 POWER AND GROUND SYSTEM
DescriptionINFOID:0000000003766741
Supplies electric power to the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000003766742
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
1. Turn the ignition switch OFF to ON.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is DTC
“C1109” detected?
YES >> Proceed to diagnosis procedure. Refer to BRC-22, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003766743
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 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT
1. Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
2. Check 30A fusible link (G).
3. Check the continuity between ABS actuator and electric unit (control unit) harness connector and battery
positive terminal.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts. (Check ABS earth bolt for tightness and corrosion.)
3.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 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
C1109BATTERY VOLTAGE
[ABNORMAL]When the ABS actuator and electric unit (control unit)
power supply voltage is lower than normal. Harness or connector
ABS actuator and electric unit
(control unit)
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 3Battery positive
terminalExisted
Page 965 of 5121
![NISSAN TEANA 2008 Service Manual BRC-24
< COMPONENT DIAGNOSIS >[ABS]
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC LogicINFOID:0000000003766745
DTC DETECTION LOGIC
DTC CON NISSAN TEANA 2008 Service Manual BRC-24
< COMPONENT DIAGNOSIS >[ABS]
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC LogicINFOID:0000000003766745
DTC DETECTION LOGIC
DTC CON](/img/5/57391/w960_57391-964.png)
BRC-24
< COMPONENT DIAGNOSIS >[ABS]
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
C1110 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC LogicINFOID:0000000003766745
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
“C1110” detected?
YES >> Proceed to diagnosis procedure. Refer to BRC-24, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003766746
1.REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
CAUTION:
Replace ABS actuator and electric unit (control unit) when self-diagnostic result shows items other
than those applicable.
>> Replace ABS actuator and electric unit (control unit).
DTC Display item Malfunction detected condition Possible cause
C1110 CONTROLLER FAILUREWhen there is an internal malfunction in the ABS actuator
and electric unit (control unit).ABS actuator and electric unit
(control unit)
Page 966 of 5121
![NISSAN TEANA 2008 Service Manual C1111 ABS MOTOR, MOTOR RELAY SYSTEM
BRC-25
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C1111 ABS MOTOR, MOTOR RELAY SYSTEM
DescriptionINFOID:0000000003766748
PUMP
The pump returns th NISSAN TEANA 2008 Service Manual C1111 ABS MOTOR, MOTOR RELAY SYSTEM
BRC-25
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C1111 ABS MOTOR, MOTOR RELAY SYSTEM
DescriptionINFOID:0000000003766748
PUMP
The pump returns th](/img/5/57391/w960_57391-965.png)
C1111 ABS MOTOR, MOTOR RELAY SYSTEM
BRC-25
< COMPONENT DIAGNOSIS >[ABS]
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C1111 ABS MOTOR, MOTOR RELAY SYSTEM
DescriptionINFOID:0000000003766748
PUMP
The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure.
MOTOR
The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control
unit).
MOTOR RELAY
Activates or deactivates motor according to the signals transmitted by the ABS actuator and electric unit (con-
trol unit).
DTC LogicINFOID:0000000003766749
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
“C 1111” detected?
YES >> Proceed to diagnosis procedure. Refer to BRC-25, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003766750
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminal for deformation, disconnect, looseness, etc.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT
Check the voltage between the 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 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 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
C 1111 P U M P M O T O RDuring the actuator motor operating with ON, when the
actuator motor turns OFF, or when the control line for ac-
tuator motor relay is open. Harness or connector
ABS actuator and electric unit
(control unit) During the actuator motor operating with OFF, when the
actuator motor turns ON, or when the control line for relay
is shorted to ground.
ABS actuator and electric unit (control unit)
—Voltage
Connector Terminal
E34 2 Ground Battery voltage