2009 NISSAN LATIO Service Repair Manual

cabin filter ignition high beam jacking parking brake water pump

Page 857 of 4331

NISSAN LATIO 2009 Service Repair Manual BRC
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• If ABS actuator and electric unit (control unit) connec
tion is loose, tighten the piping to the specified
torque and recheck for leaks.
• If there is damage to th

BRC
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• If ABS actuator and electric unit (control unit) connec
tion is loose, tighten the piping to the specified
torque and recheck for leaks.
• If there is damage to the connection flare nut or A BS actuator and electric unit (control unit) threads,
replace the damaged part and recheck for leaks.
• When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and recheck for leaks. If fluid is still seeping out, repl ace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION:
The ABS actuator and electric unit (control un it) cannot be disassembled and must be replaced
as an assembly.
3. Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION Make sure the battery positive cable, negative cabl e and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP INSPECTION 1. Make sure ABS warning lamp turns on for approximately 2 seconds when the ignition switch is turned ON. If it does not, check CAN communications. If ther e are no errors with the CAN communication system,
replace the combination meter. Refer to IP-12, " Removal and Installation " .
2. Make sure the lamp turns off approximately 2 seconds after the ignition switch is turned ON. If the lamp does not turn off, conduct self-diagnosis of ABS act uator and electric unit (control unit). If no malfunctions
are detected in self-diagnosis, replace combination meter. Refer to IP-12, " Removal and Installation " .
3. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-18, " CONSULT-III
Function (ABS) " .
Warning Lamp and Indicator Timing INFOID:0000000004307267
Note 1: Brake warning lamp will turn on when the parking brake is applied or when the brake fluid level is low.
x: ON
–: OFF
Control Unit Input/Out put Signal Standard INFOID:0000000004307268
REFERENCE VALUE FROM CONSULT-III CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
Condition
ABS
warning lamp BRAKE
warning lamp [Note 1] Remarks
When the ignition switch is OFF – – –
After the ignition switch is turned ON for approx. 1
second × ×
–
After the ignition switch is turned ON for approx. 2
seconds – –Lamp goes off approx. 2 seconds after the
engine is started.
ABS malfunction ×– –
EBD malfunction × ×–

Page 858 of 4331

NISSAN LATIO 2009 Service Repair Manual Wheel Sensor
System "
Vehicle running (Note 1)
Almost in accor-
dance with speed-
ometer display
(within ±10%)
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol

Wheel Sensor
System "
Vehicle running (Note 1)
Almost in accor-
dance with speed-
ometer display
(within ±10%)
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit) Ignition switch ON 10 to 16V
BRC-27, " ABS Control
Unit Power and Ground
Systems Inspection "
STOP LAMP SW
Stop lamp switch oper-
ation Brake pedal depressed ON
—
Brake pedal not depressed OFF
ABS WARN LAMP ABS warning lamp ON
condition (Note 2) ABS warning lamp ON ON
BRC-16, " Basic Inspec-
tion "
ABS warning lamp OFF OFF
MOTOR RELAY Operation status of mo-
tor and motor relay Ignition switch ON or running
(ABS not activated) OFF
BRC-26, " Actuator Motor,
Motor Relay, and Circuit
Inspection "Ignition switch ON or engine
running (ABS activated) ON
ACTUATOR RLY Actuator relay opera-
tion status Vehicle stopped (Ignition
switch ON) OFF
BRC-26, " Actuator Motor,
Motor Relay, and Circuit
Inspection "Vehicle stopped (Engine run-
ning) ON
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL Solenoid valve opera-
tion Actuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-III) or actuator relay is in-
active (in fail-safe mode). ON
BRC-25, " Solenoid Valve
System Inspection "
When actuator (solenoid) is not
active and actuator relay is ac-
tive (ignition switch ON). OFF
ABS SIGNAL
EBD SIGNAL Signal statusABS active
EBD active ON
ABS system
EBD system
ABS not active
EBD not active OFF
ABS FAIL SIG
EBD FAIL SIG Fail signal statusABS fail
EBD fail ON
ABS system
EBD system
ABS normal
EBD normal OFFABS diagnostic mo
de Description
SELF-DIAG RESULTS Displays ABS actuator and electric unit (control unit) self-diagnosis results.
DATA MONITOR Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.

Page 859 of 4331

NISSAN LATIO 2009 Service Repair Manual BRC
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SELF-DIAGNOSIS
Description If an error is detected in the system, the ABS warning lamp will turn on. In this case, perform self-diagnosis as
follows:
Operation Procedure 1. Turn ignition sw

Page 860 of 4331

NISSAN LATIO 2009 Service Repair Manual Wheel Sensor
System " (Note 1)
RR LH SENSOR-1
[C1102] Circuit of rear LH wheel sensor is open.
FR RH SENSOR-1
[C1103] Circuit of front RH wheel sensor is open.
FR LH SENSOR-1
[C1104] Circuit of fron

Wheel Sensor
System " (Note 1)
RR LH SENSOR-1
[C1102] Circuit of rear LH wheel sensor is open.
FR RH SENSOR-1
[C1103] Circuit of front RH wheel sensor is open.
FR LH SENSOR-1
[C1104] Circuit of front LH wheel sensor is open.
RR RH SENSOR-2
[C1105] When the circuit in the rear RH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
RR LH SENSOR-2
[C1106] When the circuit in the rear LH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
FR RH SENSOR-2
[C1107] When the circuit in the front RH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
FR LH SENSOR-2
[C1108] When the circuit in the front LH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
ABS SENSOR
[ABNORMAL SIGNAL]
[C1115] Wheel sensor input is abnormal.
BATTERY VOLTAGE
[ABNORMAL]
[C1109] ABS actuator and electric unit (control unit) power voltage is too
low. BRC-27, " ABS Control
Unit Power and Ground
Systems Inspection "
CONTROLLER FAILURE
[C1110] Internal malfunction of ABS actuator
and electric unit (control unit)BRC-25, " ABS Control
Unit Inspection "
PUMP MOTOR
[C1111] During actuator motor operation with ON, when actuator motor
turns OFF or when control line for actuator motor relay is open. BRC-26, " Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection "During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
FR LH IN ABS SOL
[C1120] Circuit of front LH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
BRC-25, " Solenoid Valve
System Inspection "FR LH OUT ABS SOL
[C1121] Circuit of front LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122] Circuit of front RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123] Circuit of front RH OUT ABS solenoid is open or shorted, or con-
trol line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124] Circuit of rear LH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126] Circuit of rear RH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127] Circuit of rear RH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.

Page 861 of 4331

NISSAN LATIO 2009 Service Repair Manual BRC
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Note 1: If wheel sens
or 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power supply voltage in addition
to wheel sensor circuit check.
Note 2: If multi

BRC
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Note 1: If wheel sens
or 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power supply voltage in addition
to wheel sensor circuit check.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
DATA MONITOR
Operation Procedure 1. After turning OFF the ignition switch, c onnect CONSULT-III to the data link connector.
2. Touch “ABS”, “DATA MONITOR” in order on the CONSULT-III screen. If “ABS” is not indicated, go to GI-36, " CONSULT-III Data Link Connector (DLC) Circuit " .
3. Return to the SELECT MONITOR ITEM screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to the following information.
4. When “START” is touched, the data monitor screen is displayed.
Display Item List MAIN RELAY
[C1114] ABS actuator relay or circuit malfunction. BRC-26, " Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection "
CAN COMM CIRCUIT
[U1000] • CAN communication line is open or shorted.
• ABS actuator and electric unit (control unit) internal malfunction
• Battery voltage for ECM is suddenly interrupted for approxi-
mately 0.5 second or more. BRC-28, " CAN Commu-
nication System Inspec-
tion " (Note 2)
Self-diagnostic item Malfunction detecting condition Check system Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR RH SENSOR
(km/h, MPH) × × × Wheel speed calculated by front RH
wheel sensor signal is displayed.
FR LH SENSOR
(km/h, MPH) × × ×
Wheel speed calculated by front LH
wheel sensor signal is displayed.
RR RH SENSOR
(km/h, MPH) × × × Wheel speed calculated by rear RH
wheel sensor signal is displayed.
RR LH SENSOR
(km/h, MPH) × × × Wheel speed calculated by rear LH
wheel sensor signal is displayed.
BATTERY VOLT
(V) × × × Voltage supplied to ABS actuator
and electric unit (control unit) is dis-
played.
STOP LAMP SW
(ON/OFF) × × × Stop lamp switch (ON/OFF) status is
displayed.
ABS WARN LAMP
(ON/OFF) –
× × ABS warning lamp (ON/OFF) status
is displayed.
FR LH IN SOL
(ON/OFF) –
× × Front LH IN ABS solenoid (ON/OFF)
status is displayed.
FR LH OUT SOL
(ON/OFF) –
× × Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF) –
× × Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF) –
× × Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF) –
× × Rear LH IN ABS solenoid (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF) –
× × Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.

Page 862 of 4331

NISSAN LATIO 2009 Service Repair Manual CONSULT-III Data Link Connector (DLC) Circuit " .
3. Touch “ACTIVE TEST”.
4. The SELECT TEST ITEM screen is displayed.
5. Touch necessary test item.
6. With the “MAIN SIGNALS” display selected

Page 863 of 4331

NISSAN LATIO 2009 Service Repair Manual BRC
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NOTE:
• If active test is performed with brake pedal depressed, pedal stroke may change. This is normal.
• “TEST IS STOPPED” is displayed approx imately 10 seconds after operation st

Page 864 of 4331

NISSAN LATIO 2009 Service Repair Manual OK >> GO TO 2.
NG >> Repair or replace as necessary. YES >> GO TO 3.
NO >> Replace the wheel sensor. Refer to BRC-32, " Removal and Installation " .
.
Are tire pressure and size correct and is tire w

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