2004 NISSAN TERRANO engine

Purpose
The Anti-lock Brake System (ABS) with an integrated Electronic Brake force Distribution (EBD) system con-
sists of electronic and hydraulic components. It allows you to control the braking force so that wheel lock can
be avoided during braking.
The advantages of ABS with EBD
1) Better tracking performance through improved steering wheel control.
2) Improved maneuverability and safer vehicle control.
3) Improved vehicle stability by preventing flat spins.
4) Shorter stopping distance and optimal utilisation of the rear brakes under many different circumstances.
Operation
IABS with EBD has self-test capabilities. The ABS warning lamp is illuminated for 1 second each time the
ignition switch is turned ªONº. After the engine is started, the ABS warning lamp turns off. An ABS self-test
is performed the first time the vehicle reaches 6 km/h (4 MPH) to ensure the system is operational. A
mechanical noise may be heard as the ABS performs this self-test and is a normal part of the self-test
feature. If a malfunction is detected during this check, the ABS warning lamp will stay on.
During the self-test, it also performs a EBD check when it detects a failure the ABS warning light will go
on simultaneously with the brake warning light and an audible sound will sound constantly.
I EBD system will only operate when the ABS is not in active status and it uses the inlet valves of ABS con-
trol unit to limit the pressure to the rear wheels when they tend to go into slip.
I When the vehicle speed is less than 10 km/h (6 MPH) the ABS system does not operate.
I While driving, a mechanical noise may be heard during ABS operation, this is a normal system condition.
ABS Hydraulic Circuit
q1Inlet solenoid valve
q
2Outlet solenoid valve
q
3Reservoir q
4Pump
q
5Motor q
6By pass check valve
q
7Damper
NBR346
ANTI-LOCK BRAKE SYSTEM
BR-38
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CONSULT-II Inspection Procedure
SELF-DIAGNOSIS PROCEDURE
1) Turn ignition switch to OFF position.
2) Connect CONSULT-II to Data Link Con- nector.
1) Start engine.
2) Drive vehicle over 30 km/h (19 MPH) for at least one minute.
1) Stop vehicle with engine runningand touch ªSTARTº on CON-
SULT-II screen.
2) Touch ªABSº.
3) Touch ªSELF-DIAG RESULTSº.
I The screen shows the detected malfunc-
tion and how many times the ignition
switch has been turned since the mal-
function.
Make the necessary repairs following the
diagnostic procedures.
After the malfunctions are repaired, erase
the self-diagnostic results stored in the
control unit by touching ªERASEº.
Check warning lamp(s) for deactivation
after driving vehicle over 30 km/h (19
MPH) for at least one minute.
Test the ABS system in a safe area to
verify that it functions properly.
END
Note: ªSELF-DIAG RESULTSº screen shows the detected malfunction and
how many times the ignition switch has been turned since the mal-
function.
YBR265
C2NCS01
C2SSE01
C2SDM01
C2SDR01
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TROUBLE DIAGNOSES
BR-60
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SELF-DIAGNOSTIC RESULTS MODE
Diagnostic itemDiagnostic item is detected when... Diagnostic
procedure
FR RH SENSORH
[OPEN] I
Circuit for front right wheel sensor is open.
(An abnormally high input voltage is entered.) 4
FR LH SENSORH
[OPEN] I
Circuit for front left wheel sensor is open.
(An abnormally high input voltage is entered.) 4
RR RH SENSORH
[OPEN] I
Circuit for rear right sensor is open.
(An abnormally high input voltage is entered.) 4
RR LH SENSORH
[OPEN] I
Circuit for rear left sensor is open.
(An abnormally high input voltage is entered.) 4
FR RH SENSORH
[SHORT] I
Circuit for front right wheel sensor is shorted.
(An abnormally low input voltage is entered.) 4
FR LH SENSORH
[SHORT] I
Circuit for front left wheel sensor is shorted.
(An abnormally low input voltage is entered.) 4
RR RH SENSORH
[SHORT] I
Circuit for rear right sensor is shorted.
(An abnormally low input voltage is entered.) 4
RR LH SENSORH
[SHORT] I
Circuit for rear left sensor is shorted.
(An abnormally low input voltage is entered.) 4
ABS SENSORH
[ABNORMAL SIGNAL] I
Teeth damage on sensor rotor or misalignment of wheel sensor.
(Abnormal wheel sensor signal is entered.) 4
FR RH IN ABS SOL
[OPEN, SHORT] I
Circuit for front right inlet solenoid valve is open or shorted.
(An abnormally low output voltage is entered.) 3
FR LH IN ABS SOL
[OPEN, SHORT] I
Circuit for front left inlet solenoid valve is open or shorted.
(An abnormally low output voltage is entered.) 3
FR RH OUT ABS SOL
[OPEN, SHORT] I
Circuit for front right outlet solenoid valve is open or shorted.
(An abnormally low output voltage is entered.) 3
FR LH OUT ABS SOL
[OPEN, SHORT] I
Circuit for front left outlet solenoid valve is open or shorted.
(An abnormally low output voltage is entered.) 3
RR IN ABS SOL
[OPEN, SHORT] I
Circuit for rear right outlet solenoid valve is open or shorted.
(An abnormally high output voltage is entered.) 3
RR OUT ABS SOL
[OPEN, SHORT] I
Circuit for rear left outlet solenoid valve is open or shorted.
(An abnormally high output voltage is entered.) 3
ABS ACTUATOR RELAY
[ABNORMAL] I
Actuator solenoid valve relay is ON, even if control unit sends OFF signal.
I Actuator solenoid valve relay is OFF, even if control unit sends ON signal. 6
ABS MOTOR RELAY
[ABNORMAL] I
Circuit for ABS motor relay is open or shorted.
I Circuit for actuator motor is open or shorted.
I Actuator motor relay is stuck. 5
BATTERY VOLT
[VB-LOW] I
Power source voltage supplied to ABS control unit is abnormally low. 7
CONTROL UNIT IFunction of calculation in ABS control unit has failed. 9
G-SENSOR
[ABNORMAL] I
G sensor is open. 8
H If a tire slips on rough roads for more than 10 seconds, the ABS warning lamp may come on. In this case, the malfunctioning code
regarding the wheel sensors may be memorized. Turn off the ignition switch, restart the engine and drive the vehicle at speeds
above 30 km/h (19 MPH).
TROUBLE DIAGNOSES
CONSULT-II Inspection Procedure (Cont'd)
BR-61
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DATA MONITOR MODE
MONITOR ITEMCONDITION SPECIFICATION
FR RH SENSOR
FR LH SENSOR
REAR RH SENSOR
REAR LH SENSOR Drive vehicle.
(Each wheel is rotating.)
Wheel speed signal
Almost the same speed as speedometer.
STOP LAMP SW Brake is depressed. Depress the pedal: ON
Release the pedal: OFF
G-SWITCH Vehicle is driven.
Vehicle is stopped.
Brake is applied.When driving or stopping vehicle with a force of less than 0.3G:
ON
When driving or stopping vehicle with a force of 0.3G or more:
OFF
FR RH IN SOL
FR RH OUT SOL
FR LH IN SOL
FR LH OUT SOL
RR IN SOL
RR OUT SOL 1. Drive vehicle at speeds over
30 km/h (19 MPH) for at
least one minute.
2. Engine is running. Operating conditions for each solenoid valve are indicated.
ABS is not operating: OFF
MOTOR RELAY ABS is not operating: OFF
ABS is operating: ON
ACTUATOR RELAY Ignition switch is set to the
ªONº position or engine is run-
ning.Ignition switch in the ªONº position (Engine stops): OFF
Engine running: ON
WARNING LAMP Warning lamp is turned on: ON
Warning lamp is turned off: OFF
BATTERY VOLT Power supply voltage for control unit
TROUBLE DIAGNOSES
CONSULT-II Inspection Procedure (Cont'd)
BR-63
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ACTIVE TEST PROCEDURE
IWhen conducting Active test, vehicle must be stationary.
I When ABS warning lamp stays on, never conduct Active test.
1) Turn ignition switch to the ªLOCKº position.
2) Connect CONSULT-II to Data Link Connector.
3) Start engine.
1) Touch ªSTARTº on CONSULT-II screen.
2) Touch ªABSº.
3) Touch ªACTIVE TESTº.
1) Select active test item by touching screen.
2) Touch ªSTARTº.
Carry out the active test by touching screen key.
C2NCS01
C2SSE01
C2SDM01
C2STI01
C2FRS01
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TROUBLE DIAGNOSES
CONSULT-II Inspection Procedure (Cont'd)
BR-64
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ACTIVE TEST MODE
TEST ITEMCONDITION JUDGEMENT
FR RH SOLENOID
FR LH SOLENOID
RR SOLENOID Engine is running.Brake fluid pressure control operation
IN SOL OUT SOL
UP (Increase):
KEEP (Hold):
DOWN (Decrease): OFF
ON
ON OFF
OFF
ON
ABS MOTOR ABS actuator motor
ON: Motor runs (ABS motor relay ON)
OFF: Motor stops (ABS motor relay OFF)
G-SWITCH Ignition switch is ON or
engine is running.Check G-switch circuit
OFF: G-switch OFF
ON: G-switch ON
Note: Active test will automatically stop ten seconds after the test starts. (LIMIT SIGNAL monitor shows
ON.)
TROUBLE DIAGNOSES
CONSULT-II Inspection Procedure (Cont'd)
BR-65
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Preliminary Check
Check brake fluid level in reservoir
tank.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Low fluid level may indicate brake pad
wear or leakage from brake line.
Check brake line for leakage.
OKENG Repair.
F
Check brake booster for operation and air
tightness. Refer to BR-19.
OK
ENGReplace.
F
Check brake pads, rotor and drums.
OKENGReplace.
Check brake fluid level in reservoir tank.
OKENGFill up brake fluid.
Check warning lamp(s) or warning sound
activation.
When ignition switch is turned on, warning
lamp(s) turn(s) on.
OK
ENG
Check fuse, warning lamp
bulb and warning lamp cir-
cuit.
Check warning lamp(s) for deactivation
after engine is started.
OK
ENGGo to Self-diagnosis,
BR-60.
Drive vehicle at speeds over 30 km/h (19
MPH) for at least one minute.
Ensure warning lamp(s) remain(s) off
while driving.
OK
ENGGo to Self-diagnosis,
BR-60.
END
SBR451D
SBR389C
SBR058C
SBR059C
YBR266
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TROUBLE DIAGNOSES
BR-66
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Diagnostic Procedure 10 (Pedal vibration and
noise)
INSPECTION START
1. Apply brake.
2. Start engine.
3. Does the symptom appear only whenengine is started?
No
EYe s Carry out self-diagnosis.
Refer to BR-60.
CHECK IF SYMPTOM APPEARS.
Does the symptom appear when electrical
equipment switches (such as headlamp)
are operated?
Ye s
ENoGo toin Diagnostic
Procedure 12, BR-82.
CHECK WHEEL SENSOR.
Check wheel sensor shield ground. For
location of shield ground, refer to wiring
diagram and ªHARNESS LAYOUTº in EL
section.
OK
ENG Repair wheel sensor.
CHECK HARNESS CONNECTOR.
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector.
Reconnect ABS actuator and electric unit
harness connector. Then retest.
Note: ABS may operate and cause vibration under any of the
following conditions.
Diagnostic Procedure 11 (Long stopping
distance)
CHECK ABS PERFORMANCE.
Disconnect ABS actuator and electric unit
connector and check whether stopping
distance is still long.
Ye s
ENoGo toin Diagnostic
Procedure 12, BR-82.
Perform Preliminary Check and air bleed-
ing.
Note: Stopping distance may be larger than vehicles without ABS when road condition is slippery.
SAT797AH
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TROUBLE DIAGNOSES
BR-81
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