Ccu NISSAN TEANA 2008 Workshop Manual

DIAGNOSIS AND REPAIR WORK FLOW
BRC-7
< BASIC INSPECTION >[ABS]
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1.COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using the diagnosis work sheet. Refer to BRC-8, "
Diagnostic Work Sheet".
>> GO TO 2.
2.PERFORM THE SELF-DIAGNOSIS
Check the DTC display with the self-diagnosis function.
Is there any DTC displayed?
YES >> GO TO 3.
NO >> GO TO 4.
3.PERFORM THE SYSTEM DIAGNOSIS
Perform the diagnosis applicable to the displayed DTC. Refer to BRC-48, "
DTC No. Index".
>> GO TO 7.
4.CHECK THE SYMPTOM THAT IS NOT CONSIDERED A SYSTEM MALFUNCTION
Check that the symptom is a normal operation that is not considered a system malfunction. Refer to BRC-54,
"Description".
Is the symptom a normal operation?
YES >> INSPECTION END
NO >> GO TO 5.
5.CHECK THE WARNING LAMP FOR ILLUMINATION
Check that the warning lamp illuminate.
• ABS warning lamp: Refer to BRC-40, "
Description".
 Brake warning lamp: Refer to BRC-41, "
Description".
Is ON/OFF timing normal?
YES >> GO TO 6.
NO >> GO TO 2.
6.PERFORM THE DIAGNOSIS BY SYMPTOM
Perform the diagnosis applicable to the symptom.
>> GO TO 7.
7.REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 8.
8.MEMORY CLEAR
Perform self-diagnosis memory clear.
>> GO TO 9.
9.FINAL CHECK
Perform the self-diagnosis again, and check that the malfunction is repaired completely.
Is no other DTC present and the repair completed?
YES >> INSPECTION END
NO >> GO TO 3.

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

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-15
< FUNCTION DIAGNOSIS >[ABS]
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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

BRC-26
< COMPONENT DIAGNOSIS >[ABS]
C1111 ABS MOTOR, MOTOR RELAY SYSTEM
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Repair or replace damaged parts.
Component InspectionINFOID:0000000003766751
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 BRC-25, "
Diagnosis Procedure".
ABS actuator and electric unit (control unit)
— Continuity
Connector Terminal
E341
Ground Existed
4
Test item Display itemDisplay
On Off
ABS MOTORMOTOR RELAY On Off
ACTUATOR RLY (Note) On On

C1120, C1122, C1124, C1126 IN ABS SOL
BRC-33
< COMPONENT DIAGNOSIS >[ABS]
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Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Repair or replace damaged parts.
Component InspectionINFOID:0000000003766771
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 BRC-32, "
Diagnosis Procedure".
ABS actuator and electric unit (control unit)
—Continuity
Connector Terminal
E341
Ground Existed
4
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*

C1121, C1123, C1125, C1127 OUT ABS SOL
BRC-35
< COMPONENT DIAGNOSIS >[ABS]
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Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Repair or replace damaged parts.
Component InspectionINFOID: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 BRC-34, "
Diagnosis Procedure".
ABS actuator and electric unit (control unit)
—Continuity
Connector Terminal
E341
Ground Existed
4
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*

C1140 ACTUATOR RELAY SYSTEM
BRC-37
< COMPONENT DIAGNOSIS >[ABS]
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Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Repair or replace damaged parts.
Component InspectionINFOID: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 BRC-36, "
Diagnosis Procedure".
Test item Display itemDisplay
On Off
ABS MOTORMOTOR RELAY On Off
ACTUATOR RLY (Note) On On

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-43
< ECU DIAGNOSIS >[ABS]
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NOTE:
 1: Confirm tire pressure is normal.
 2: 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.
 3: On and off timing for warning lamp and indicator lamp.
- ABS warning lamp: Refer to BRC-40, "
Description".
- Brake warning lamp: Refer to BRC-41, "
Description". RR RH IN SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
RR RH OUT SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
RR LH IN SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
RR LH OUT SOLOperation status of each solenoid
valve Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT-III)On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)Off
MOTOR RELAY Motor and motor relay operationWhen the motor relay and motor are op-
eratingOn
When the motor relay and motor are not
operatingOff
ACTUATOR RLY
(Note 2)Actuator relay operationWhen the actuator relay is operating On
When the actuator relay is not operating Off
ABS WARN LAMPABS warning lamp
(Note 3)When ABS warning lamp is ON On
When ABS warning lamp is OFF Off
EBD WARN LAMPBrake warning lamp
(Note 3)When brake warning lamp is ON On
When brake warning lamp is OFF Off
EBD SIGNAL EBD operationEBD is active On
EBD is inactive Off
ABS SIGNAL ABS operationABS is active On
ABS is inactive Off
EBD FAIL SIG EBD fail-safe signalIn EBD fail-safe On
EBD is normal Off
ABS FAIL SIG ABS fail-safe signalIn ABS fail-safe On
ABS is normal Off Monitor item Display contentData monitor
ConditionReference value in
normal operation

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
BRC-53
< SYMPTOM DIAGNOSIS >[ABS]
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PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
Diagnosis ProcedureINFOID:0000000003766856
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it). However, this is normal.
 When shifting gears
 When driving on slippery road
 During cornering at high speed
 When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
 When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1.SYMPTOM CHECK 1
Check that there are pedal vibrations when the engine is started.
Do vibrations occur?
YES >> GO TO 2.
NO >> Inspect the brake pedal.
2.SYMPTOM CHECK 2
Check that there are ABS operation noises when the engine is started.
Do the operation noises occur?
YES >> GO TO 3.
NO >> Perform self-diagnosis.
3.SYMPTOM CHECK 3
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO >> Normal

BRC-54
< SYMPTOM DIAGNOSIS >[ABS]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003766858
Symptom Result
Slight vibrations are felt on the brake pedal and the operation noises occur, when ABS is activated.
This is a normal condi-
tion due to the ABS acti-
vation. Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
The brake pedal vibrates and motor operation noises occur from the engine room, after the engine starts and
just after the vehicle starts.This is a normal, and it is
caused by the ABS op-
eration check.