2014 NISSAN TEANA DISPLAY UNIT

BCS
U1010 CONTROL UNIT (CAN)BCS-69
< DTC/CIRCUIT DIAGNOSIS > [BCM]
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U1010 CONTROL UNIT (CAN)
DTC LogicINFOID:0000000009462031
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000009462032
1. REPLACE BCM
When DTC U1010 is detected, replace BCM.
>> Replace BCM. Refer to BCS-80, "Removal and Installation"
.
CONSULT Display DTC Detectio n Condition Possible Cause
CAN COMM CIRCUIT
[U1010] BCM detected internal CAN communication circuit mal-
function. BCM
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BCS-70
< DTC/CIRCUIT DIAGNOSIS >[BCM]
U0415 VEHICLE SPEED SIG
U0415 VEHICLE SPEED SIG
DescriptionINFOID:0000000009462033
U0415 is displayed if any unusual condition is present in
the reception status of the vehicle speed signal from
the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000009462034
DTC DETECTION LOGIC
NOTE:
• If DTC U0415 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
BCS-68, "DTC Logic"
.
• If DTC U0415 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to BCS-69, "DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1. DTC CONFIRMATION
1. Erase the DTC.
2. Turn ignition switch OFF.
3. Perform Self Diagnostic Result of BCM with CONSULT, after the ignition switch has been turned ON for 2 seconds or more.
Is any DTC detected?
YES >> Refer to BCS-52, "DTC Index".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009462035
1. ABS ACTUATOR AND ELECTRIC UNIT (CON TROL UNIT) SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of ABS with CONSULT. Refer to BRC-33, "CONSULT Function (ABS)"
.
Is any DTC detected?
YES >> Perform the trouble diagnosis relat ed to the detected DTC. Refer to BRC-45, "DTC Index".
NO >> GO TO 2.
2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND
CIRCUIT
Check ABS actuator and electric unit (control unit) power and ground. Refer to BRC-70, "Diagnosis Proce-
dure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. COMBINATION METER SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of METER M&A with CONSULT. Refer to MWI-18, "CONSULT Function
(METER/M&A)".
Is any DTC detected?
YES >> Perform the trouble diagnosis relat ed to the detected DTC. Refer to MWI-27, "DTC Index".
NO >> Refer to GI-43, "Intermittent Incident"
.
CONSULT Display DTC Detectio n Condition Possible Cause
VEHICLE SPEED SIG
[U0415] When the vehicle speed signal received from the
ABS actuator and electric unit (control unit) remains
abnormal for 2 seconds or more. • ABS system
• Combination meter system
• CAN bus harness
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

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-35
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
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× : Applicable
–: Not applicable N POSI SIG
(On/Off) ––
×Neutral position (On/Off) judged by transmission
range switch signal.
P POSI SIG
(On/Off) ––
×Park position (On/Off) judged by transmission range
switch signal.
ACCEL POS SIG
(%) ×
– ×Throttle valve open/close status judged by CAN com-
munication signal is displayed.
SIDE G-SENSOR
(m/s
2) ×
– ×Transverse acceleration detected by side G-sensor is
displayed.
STR ANGLE SIG
(deg) ×
– ×Steering angle detected by steering angle sensor is
displayed.
PRESS SENSOR
(bar) ×
– ×Brake pressure detected by pressure sensor is dis-
played.
EBD SIGNAL
(On/Off) ––
×EBD operation (On/Off) status is displayed.
ABS SIGNAL
(On/Off) ––
×ABS operation (On/Off) status is displayed.
TCS SIGNAL
(On/Off) ––
×TCS operation (On/Off) status is displayed.
VDC SIGNAL
(On/Off) ––
×VDC operation (On/Off) status is displayed.
EBD FAIL SIG
(On/Off) ––
×EBD fail signal (On/Off) status is displayed.
ABS FAIL SIG
(On/Off) ––
×ABS fail signal (On/Off) status is displayed.
TCS FAIL SIG
(On/Off) ––
×TCS fail signal (On/Off) status is displayed.
VDC FAIL SIG
(On/Off) ––
×VDC fail signal (On/Off) status is displayed.
CRANKING SIG
(On/Off) ––
×The input state of the key SW START position signal
is displayed.
FLUID LEV SW
(On/Off) ×
– ×Brake fluid level switch (On/Off) status is displayed.
PARK BRAKE SW
(On/Off) ×
– ×Park brake switch (On/Off) status is displayed.
USV[FL-RR]
(On/Off) ——
×Primary side USV solenoid valve (On/Off) status is
displayed.
USV[FR-RL]
(On/Off) ——
×Secondary side USV solenoid valve (On/Off) status is
displayed.
HSV[FL-RR]
(On/Off) ——
×Primary side HSV solenoid valve (On/Off) status is
displayed.
HSV[FR-RL]
(On/Off) ——
×Secondary side HSV solenoid valve (On/Off) status is
displayed.
V/R OUTPUT
(On/Off) ——
×Valve relay operation signal (On/Off) status is dis-
played.
M/R OUTPUT
(On/Off) ——
×Motor relay operation signal (On/Off) status is dis-
played.
ENGINE RPM
(tr/min) ×
– ×Engine speed judged by CAN communication signal
is displayed.
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-36
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
DIAGNOSIS SYSTEM [
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
ACTIVE TEST
The active test is used to determine and identify details of a malfunction, based on self-diagnosis test results
and data obtained in the DATA MONITOR. In response to instructions from CONSULT, instead of those from
ABS actuator and electric unit (control unit) on the vehicle, a drive signal is sent to the actuator to check its
operation.
CAUTION:
• Never perform ACTIVE TEST while driving the vehicle.
• Always bleed air from brake system before active test.
• Never perform active test when system is malfunctioning.
NOTE:
• When active test is performed while depressing the pedal, the pedal depressing stroke may change. This is not a malfunction.
• “TEST IS STOPPED” is displayed approx. 10 seconds after operation start.
• When performing active test again after “TEST IS STOPPED” is displayed, select “BACK”.
• ABS warning lamp, brake warning lamp and VDC warning lamp may turn ON during active test. This is not a malfunction.
ABS IN Valve and ABS OUT Valve
When “Up”, “Keep” or “Down” is selected on display sc reen, the following items are displayed when system is
normal.
*: Immediately after being selected, status is “O n”. Status changes to “Off” after approx. 2 seconds.
ABS IN Valve (ACT) and ABS OUT Valve (ACT)
When “Up”, “ACT UP” or “ACT KEEP” is selected on di splay screen, the following items are displayed when
system is normal.
Test item Display Item Display
Up Keep Down
FR RH SOL FR RH IN SOL Off On* On*
FR RH OUT SOL Off Off On*
FR LH SOL FR LH IN SOL Off On* On*
FR LH OUT SOL Off Off On*
RR RH SOL RR RH IN SOL Off On* On*
RR RH OUT SOL Off Off On*
RR LH SOL RR LH IN SOL Off On* On*
RR LH OUT SOL Off Off On*
Test item Display Item Display
Up ACT UP ACT KEEP
FR RH SOLENOID
(ACT) FR RH IN SOL Off Off Off
FR RH OUT SOL Off Off Off
CV1 Off Off Off
CV2 Off On* On*
FR LH SOLENOID
(ACT) FR LH IN SOL Off Off Off
FR LH OUT SOL Off Off Off
CV1 Off On* On*
CV2 Off Off Off
RR RH SOLENOID
(ACT) RR RH IN SOL Off Off Off
RR RH OUT SOL Off Off Off
CV1 Off On* On*
CV2 Off Off Off
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-37
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
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*: Immediately after being selected, status is “O n”. Status changes to “Off” after approx. 10 seconds.
ABS MOTOR
When “On” or “Off” is selected on display screen, the following items are displayed when system is normal.
NOTE:
Display occasionally changes On/Off for a moment after i gnition switch is turned ON. This is an operation for
checking purposes and is not a malfunction.
WORK SUPPORT
CONFIGURATION
Configuration includes the following functions.
CAUTION:
Use ‘‘Manual Configuration’’ only when ‘‘TYPE ID’’ of ABS actuator and electric unit (control unit) can-
not be read.
RR LH SOLENOID
(ACT) RR LH IN SOL Off On* Off
RR LH OUT SOL Off Off Off
CV1 Off Off Off
CV2 Off On* On*
Test item Display Item
Display
Up ACT UP ACT KEEP
Test item Display Item Display
On Off
ABS MOTOR MOTOR RELAY On Off
ACTUATOR RLY
(Note)On On
Conditions Description
ST ANGLE SENSOR ADJUSTMENT Steering angle sensor neutral position adjustment can be per-
formed. Refer to BRC-58, "Work Procedure"
.
DECEL G SEN CALIBRATION Perform decel G sensor calibration.
Function Description
Read/Write Configuration Before replacing ECU
Allows the reading of vehicle spec
ification (Type ID) written in ABS
actuator and electric unit (control unit) to store the specification in
CONSULT.
After replacing ECU Allows the writing of vehicle information (Type ID) stored in CON-
SULT into the ABS actuator and electric unit (control unit).
Manual Configuration Allows the writing of vehicle specification (Type ID) into the ABS
actuator and electric unit (control unit) by hand.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-38
< ECU DIAGNOSIS INFORMATION >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
ECU DIAGNOSIS INFORMATION
ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT)
Reference ValueINFOID:0000000009463759
VALUES ON THE DIAGNOSIS TOOL
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.
Monitor item Display content Data monitor
Condition Reference value in
normal operation
FR LH SENSOR Wheel speed 0 [km/h, mph] Vehicle stopped
Nearly matches the speed meter display
( ± 10% or less) Vehicle running
(Note 1)
FR RH SENSOR Wheel speed 0 [km/h, mph] Vehicle stopped
Nearly matches the speed meter display
( ± 10% or less) Vehicle running
(Note 1)
RR LH SENSOR Wheel speed 0 [km/h, mph] Vehicle stopped
Nearly matches the speed meter display
( ± 10% or less) Vehicle running
(Note 1)
RR RH SENSOR Wheel speed 0 [km/h, mph] Vehicle stopped
Nearly matches the speed meter display
( ± 10% or less) Vehicle running
(Note 1)
DECEL G-SEN Longitudinal acceleration detected by decel
G sensor Vehicle stopped Approx. 0 G
Vehicle running -1.7 to 1.7 G
FR 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
FR 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
FR 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
FR 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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM