BRC-4
< PRECAUTION >[VDC/TCS/ABS]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint Syst
em (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951721
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three minutes before performing any service.
Precaution for Brake SystemINFOID:0000000009463735
WARNING:
Clean any dust from the front brake and rear br ake using a vacuum dust collector. Do not blow by
compressed air.
• Brake fluid use refer to BR-8, "Inspection"
.
• Do not reuse drained brake fluid.
• Do not spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off immediately and wash with water if it gets on a painted surface.
• Always confirm the specified tightening torque when installing the brake pipes.
• After pressing the brake pedal more deeply or harder t han normal driving, such as air bleeding, check each
item of brake pedal. Adjust brake pedal if it is outside the standard value.
• Do not use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and cause
improper operation.
• Always loosen the brake tube flar e nut with a flare nut wrench.
• Tighten the brake tube flare nut to the specified torque with a crow-
foot (A) and torque wrench (B).
• Always connect the battery terminal when moving the vehicle.
• Turn the ignition switch OFF and disconnect the ABS actuator and
electric unit (control unit) harness connector or the battery negative
terminal before performing the work.
• Check that no brake fluid leakage is present after replacing the parts.
JPFIA0001ZZ
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PRECAUTIONSBRC-5
< PRECAUTION > [VDC/TCS/ABS]
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Precaution for Brake ControlINFOID:0000000009463736
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is normal.
• Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine
compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnosis.
Besides electrical system inspection, check boos ter operation, brake fluid level, and fluid leaks.
• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-
ping distance or steering stability may deteriorate.
• If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness pinches, open circuits or improper wiring.
• If the following components are replaced with non-genuine components or modified, the VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs , bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, roto rs, calipers, etc.), components related to engine (muf-
fler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).
• Driving with broken or excessively worn suspensi on components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.
• When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
• When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as sharp curves on a freeway), the VDC may not operate no rmally, or the VDC warning lamp and the SLIP indi-
cator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the engine.
• Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw rate/side/decel G sensor to indicate a problem. This is not a problem if normal operation can be resumed
after restarting the engine.
Precaution for CAN SystemINFOID:0000000009463737
• Do not apply voltage of 7.0V or higher to terminal to be measured.
• Maximum open terminal voltage of tester in use must be less than 7.0V.
• Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
• Area to be repaired must be soldered and wrapped with tape. Make sure that fraying of twisted wire is within 110 mm (4.33 in).
PKIA0306E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-33
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
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DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT Function (ABS)INFOID:0000000009463758
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
FUNCTION
CONSULT can display each diagnostic item us ing the following direct diagnostic modes.
ECU IDENTIFICATION
ABS actuator and electric unit (control unit) part number is displayed.
SELF DIAGNOSTIC RESULT
Operation Procedure
1. Before performing the self-diagnosis, start engine and drive vehicle at 30 km/h (19 MPH) or more for
approximately 1 minute.
How To Erase Self Diagnostic Result
1. After erasing DTC memory, start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final inspection, and make sure t hat the ABS warning lamp, VDC OFF indicator lamp,
SLIP indicator 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, the ABS warning lamp,
SLIP indicator lamp and brake warning lamp will not turn OFF even when the system is normal, unless
the vehicle is driven at approximately 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 of brake fluid
level switch operation (when brake fluid is insufficient).
• VDC OFF switch should not stay in ON position.
Display Item List
Refer to BRC-45, "DTC Index".
DATA MONITOR
Direct Diagnostic Mode Description
ECU identification The ABS actuator and electric un it (control unit) part number is displayed.
Self Diagnostic Result The ABS actuator and electric unit (control unit) self diagnostic results are displayed.
Data Monitor The ABS actuator and elec tric unit (control unit) input/output data is displayed in real time.
Active Test The ABS actuator and elec tric unit (control unit) activates outputs to test components.
Work support The settings for ABS actuator and electric unit (control unit) functions can be changed.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication is displayed.
Configuration • Read and save the vehicle specification (TYPE ID).
• Write the vehicle specification (TYPE ID) when replacing ABS actu ator and electric unit (con-
trol unit).
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BRC-34
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR LH SENSOR
(km/h, mph) ×× × Wheel speed (km/h, mph) calculated by front wheel
sensor LH signal is displayed.
FR RH SENSOR
(km/h, mph) ×× × Wheel speed (km/h, mph) calculated by front wheel
sensor RH signal is displayed.
RR LH SENSOR
(km/h, mph) ×× ×
Wheel speed (km/h, mph) calculated by rear wheel
sensor LH signal is displayed.
RR RH SENSOR
(km/h, mph) ×× × Wheel speed (km/h, mph) calculated by rear wheel
sensor RH signal is displayed.
DECEL G-SEN
(G) ×× × Longitudinal acceleration (G) detected by decel G-
sensor is displayed.
FR RH IN SOL
(On/Off) –
×× Front RH IN ABS solenoid (On/Off) status is dis-
played.
FR RH OUT SOL
(On/Off) –
×× Front RH OUT ABS solenoid (On/Off) status is dis-
played.
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 dis-
played.
RR RH IN SOL
(On/Off) –
×× Rear RH IN ABS solenoid (On/ Off) status is displayed.
RR RH OUT SOL
(On/Off) –
×× Rear RH OUT ABS solenoid (On/Off) status is dis-
played.
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 dis-
played.
EBD WARN LAMP
(On/Off) ––
×Brake warning lamp (On/Off) status is displayed.
STOP LAMP SW
(On/Off) ×× ×
Stop lamp switch (On/Off) status is displayed.
MOTOR RELAY
(On/Off) –
×× ABS motor relay signal (On/Of f) status is displayed.
ACTUATOR RLY
(On/Off) –
×× ABS actuator relay signal (On/ Off) status is displayed.
ABS WARN LAMP
(On/Off) –
×× ABS warning lamp (On/Off) status is displayed.
OFF LAMP
(On/Off) –
×× VDC OFF Lamp (On/Off) status is displayed.
SLIP/VDC LAMP
(On/Off) –
×× SLIP indicator lamp (On/Off) status is displayed.
BATTERY VOLT
(V) ×× × Voltage (V) supplied to ABS actuator and electric unit
(control unit) is displayed.
GEAR
(1, 2, 3, 4, 5) ×× ×
Gear position (1, 2, 3, 4, 5) judged by transmission
range switch signal is displayed.
SLCT LVR POSI ×× × Current gear position judged from current gear posi-
tion signal is displayed.
YAW R AT E S E N
(d/s) ×× × Yaw rate (d/s) detected by yaw rate sensor is dis-
played.
R POSI SIG
(On/Off) ––
×Reverse shift position (On/Off) judged by transmis-
sion range switch signal.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)BRC-39
< ECU DIAGNOSIS INFORMATION > [VDC/TCS/ABS]
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RR RH IN SOL Operation status of all solenoid valves Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode) On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON) Off
RR RH OUT SOL Operation status of all solenoid valves Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode) On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON) Off
RR LH IN SOL Operation status of all solenoid valves Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode) On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON) Off
RR LH OUT SOL Operation status of all solenoid valves Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode) On
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON) Off
EBD WARN LAMP EBD warning lamp
(Note 2) When EBD warning lamp is ON On
When EBD warning lamp is OFF Off
STOP LAMP SW Brake pedal operation When brake pedal is depressed On
When brake pedal is not depressed Off
MOTOR RELAY Motor and motor relay operation When the motor relay and motor are op-
erating On
When the motor relay and motor are not
operating Off
ACTUATOR RLY Actuator relay operation When the actuator relay is operating On
When the actuator relay is not operating Off
ABS WARN LAMP ABS warning lamp
(Note 2) When ABS warning lamp is ON On
When ABS warning lamp is OFF Off
OFF LAMP VDC OFF indicator lamp
(Note 2) When VDC OFF indicator lamp is ON On
When VDC OFF indicator lamp is OFF Off
SLIP/VDC LAMP SLIP indicator lamp
(Note 2) When SLIP indicator lamp is ON On
When SLIP indicator lamp is OFF Off
BATTERY VOLT Battery voltage supplied
to the ABS actuator
and electric unit (control unit) Ignition switch ON 10 – 16 V
GEAR Manual mode gear position determined by
TCM 1st gear
2nd gear
3rd gear
4th gear
5th gear 1
2
3
4
5
SLCT LVR POSI Selector lever position. Vehicle stopped N/P
YAW RATE SEN Yaw rate detected by yaw rate/side G sensor Vehicle stopped Approx. 0 d/s
Vehicle turning -75 to 75 d/s
Monitor item Display content
Data monitor
Condition Reference value in
normal operation
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
BRC-44
< ECU DIAGNOSIS INFORMATION >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Inspection Priority Chart
INFOID:0000000009463761
When multiple DTCs are displayed simultaneously, check each one using the following priority list.
C1164 When a malfunction is detected in cut valve 1. The following functions are sus- pended:
•VDC
•TCS
•ABS
•EBD
C1165 When a malfunction is detected in cut valve 2.
C1166 When a malfunction is detected in suction valve 1.
C1167 When a malfunction is detected in suction valve 2.
C1170 When the information in ABS actuator and electric unit (control unit) is not the same. The following functions are sus-
pended:
•VDC
•TCS
•ABS
C1197 When a malfunction is detected in vacuum sensor. Electrical vacuum assistance of
brake booster is suspended.
C1198 • When an open circuit is detected in vacuum sensor circuit.
• When a short circuit is detected in vacuum sensor circuit.
• When a malfunction is detected in vacuum sensor noise.
C1199 When brake booster vacuum is approx. 0 kPa (0 mmHg) during engine running. —
C119A When a malfunction is detected in supply power voltage of vacuum sensor. Electrical vacuum assistance of
brake booster is suspended.
U1000 When CAN communication signal is not continuously transmitted or received for 2
seconds or more. The following functions are sus-
pended:
•VDC
•TCS
U1002 When ABS actuator and electric unit (control unit) is not transmitting or receiving
CAN communication signal for 2 seconds or less.
DTC Malfunction detected condition Fail-safe condition
Priority Detected item (DTC)
1 • U1000 CAN COMM CIRCUIT
• U1002 SYSTEM COMM(CAN)
2 • C1110 CONTROLLER FAILURE
• C1153 EMERGENCY BRAKE
• C1170 VARIANT CORDING
3 • C1130 ENGINE SIGNAL 1
• C1144 ST ANG SEN SIGNAL
4 • C1109 BATTERY VOLTAGE [ABNORMAL]
• C 1111 P U M P M O T O R
•C1140 ACTUATOR RLY
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)BRC-45
< ECU DIAGNOSIS INFORMATION > [VDC/TCS/ABS]
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DTC IndexINFOID:0000000009463762
5 • C1101 RR RH SENSOR-1
• C1102 RR LH SENSOR-1
• C1103 FR RH SENSOR-1
• C1104 FR LH SENSOR-1
• C1105 RR RH SENSOR-2
• C1106 RR LH SENSOR-2
• C1107 FR RH SENSOR-2
• C1108 FR LH SENSOR-2
• C1115 ABS SENSOR [ABNORMAL SIGNAL]
• C1116 STOP LAMP SW
• C1120 FR LH IN ABS SOL
• C1121 FR LH OUT ABS SOL
• C1122 FR RH IN ABS SOL
• C1123 FR RH OUT ABS SOL
• C1124 RR LH IN ABS SOL
• C1125 RR LH OUT ABS SOL
• C1126 RR RH IN ABS SOL
• C1127 RR RH OUT ABS SOL
• C1142 PRESS SEN CIRCUIT
• C1143 ST ANG SEN CIRCUIT
• C1145 YAW RATE SENSOR
• C1146 SIDE G-SEN CIRCUIT
• C1160 DECEL G SEN SET
•C1164 CV1
•C1165 CV2
• C1166 SV1
• C1167 SV2
• C1197 VACUUM SENSOR
• C1198 VACUUM SEN CIR
• C1199 BRAKE BOOSTER
• C119A VACUUM SEN VOLT
6 • C1155 BR FLUID LEVEL LOW
Priority Detected item (DTC)
DTC Items (CONSULT screen terms) Reference
C1101 RR RH SENSOR-1
BRC-64, "DTC Logic"
C1102 RR LH SENSOR-1
C1103 FR RH SENSOR-1
C1104 FR LH SENSOR-1
C1105 RR RH SENSOR-2
BRC-68, "DTC Logic"
C1106 RR LH SENSOR-2
C1107 FR RH SENSOR-2
C1108 FR LH SENSOR-2
C1109 BATTERY VOLTAGE [ABNORMAL] BRC-70, "DTC Logic"
C1110 CONTROLLER FAILUREBRC-72, "DTC Logic"
C 1111 P U M P M O T O RBRC-73, "DTC Logic"
C1115 ABS SENSOR [ABNORMAL SIGNAL] BRC-76, "DTC Logic"
C1116 STOP LAMP SWBRC-78, "DTC Logic"
C1120 FR LH IN ABS SOL BRC-80, "DTC Logic"
C1121 FR LH OUT ABS SOLBRC-82, "DTC Logic"
C1122 FR RH IN ABS SOLBRC-80, "DTC Logic"
C1123 FR RH OUT ABS SOLBRC-82, "DTC Logic"
C1124 RR LH IN ABS SOLBRC-80, "DTC Logic"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
C1101, C1102, C1103, C1104 WHEEL SENSOR
BRC-65
< DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS]
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3.HARNESS AND CONNECTOR INSPECTION
1. Disconnect ABS actuator and electr ic unit (control unit) connector E54 and wheel sensor connector of
suspect wheel.
2. Check harness, connectors and terminals for corrosi on, deformation, disconnection, looseness or dam-
age.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace as necessary.
4.CHECK WHEEL SENSOR OUTPUT SIGNAL
1. Connect ABS active wheel sensor tester (J- 45741) to wheel sensor using appropriate adapter.
2. Turn on the ABS active wheel sensor tester power switch. NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
3. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and
retest.
Does the ABS active wheel s ensor tester detect a signal?
YES >> GO TO 5.
NO >> Replace the wheel sensor. Refer to BRC-124, "Removal and Installation - Front Wheel Sensor"
or
BRC-125, "Removal and Installation - Rear Wheel Sensor"
.
5.CHECK WIRING HARNESS FOR SHORT TO VOLTAGE
1. Turn ignition switch ON.
2. Check voltage between wheel sensor harness c onnector terminals of suspect wheel and ground.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair the circuit.
6.CHECK WIRING HARNESS FOR SHORT TO GROUND
1. Turn ignition switch OFF.
2. Check continuity between wheel sensor harne ss connector terminals of suspect wheel and ground.
Wheel Sensor
Ground Voltage
Wheel Connector Terminal
Front LH E19 1
—0V
2
Front RH E41 1
2
Rear LH C2 1
2
Rear RH C3 1
2
Wheel Sensor Ground Continuity
Wheel Connector Terminal
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM