2014 NISSAN TEANA transmission

BRC-28
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
Major signal transmission between each unit via communication lines is shown in the following table.
VDC/TCS/ABS : EBD FunctionINFOID:0000000009463756
SYSTEM DIAGRAM
• By preventing rear wheel slip increase through rear wheel
brake force (brake fluid pressure) control that is
electronically controlled when slight skip on front and r ear wheels are detected during braking, stability dur-
ing braking is improved.
• EBD function is expanded and developed from conventi onal ABS function and corrects rear wheel brake
force to appropriate level by electronic control according to load weight (number of passengers).
Component Signal description
Combination meter Receives the following signals from ABS actuator
and electric unit (control unit) via CAN com-
munication.
• VDC warning lamp signal
• ABS warning lamp signal
ALFIA0297GB
JPFIC0142GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMBRC-29
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
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• During braking, control unit portion compares slight slip on front and rear wheels by wheel sensor signal, transmits drive signal to
actuator portion when rear wheel sl ip exceeds front wheel slip for
the specified value or more, and controls rear wheel brake force
(brake fluid pressure) so that increase of rear wheel slip is pre-
vented and slips on front wheel and rear wheel are nearly equal-
ized. ABS control is applied when slip on each wheel increases
and wheel speed is the threshold value of ABS control or less.
• CONSULT can be used to diagnose the system.
• Fail-safe function is adopted. When a malfunction occurs in EBD function, the control is suspended for VDC function, TCS function,
ABS function and EBD function. Refer to BRC-29, "VDC/TCS/ABS
: Fail-safe".
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
VDC/TCS/ABS : Fail-safeINFOID:0000000009463757
VDC AND TCS FUNCTIONS
VDC warning lamp in combination meter turns ON when a malfunction occurs in system [ABS actuator and
electric unit (control unit)]. The control is su spended for VDC and TCS functions. However, ABS and EBD
functions operate normally.
ABS FUNCTION
ABS warning lamp and SLIP indicator lamp in combination meter turn ON when a malfunction occurs in sys-
tem [ABS actuator and electric unit (control unit)]. The control is suspended for VDC, TCS and ABS functions.
However, EBD functions operate normally.
EBD FUNCTION
ABS warning lamp, brake warning lamp and SLIP indicator lamp in combination meter turn ON when a mal-
function occurs in system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC,
TCS, ABS and EBD functions.
JPFIC0143GB
Component Signal description
Combination meter Receives the following signals from ABS actuator and electric unit (control unit) via CAN com-
munication.
• ABS warning lamp signal
• Brake warning lamp signal
• SLIP indicator lamp signal
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
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BRC-40
< ECU DIAGNOSIS INFORMATION >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
R POSI SIGTransmission range switch signal ON/OFF
condition CVT shift position = R position On
CVT shift position = other than R position Off
N POSI SIG Transmission range switch signal ON/OFF
condition CVT shift position = N position On
CVT shift position = other than N position Off
P POSI SIG Transmission range switch signal ON/OFF
condition CVT shift position = P position On
CVT shift position = other than P position Off
ACCEL POS SIG Throttle actuator opening/closing is dis-
played (linked with accelerator pedal) Accelerator pedal not depressed (ignition
switch is ON) 0 %
Depress accelerator pedal (ignition
switch is ON) 0 - 100 %
SIDE G-SENSOR Transverse G detected by side G sensor Vehicle stopped
Approx. 0 m/s
2
Vehicle turning rightNegative value
(m/s2)
Vehicle turning left Positive value
(m/s
2)
STR ANGLE SIG Steering angle detected by steering angle
sensor Straight-ahead Approx. 0
°
Steering wheel turned –720 to 720 °
PRESS SENSOR Brake fluid pressure detected by pressure
sensor With ignition switch turned ON and brake
pedal released Approx. 0 bar
With ignition switch turned ON and brake
pedal depressed –40 to 300 bar
EBD SIGNAL EBD operation EBD is active On
EBD is inactive Off
ABS SIGNAL ABS operation ABS is active On
ABS is inactive Off
TCS SIGNAL TCS operation TCS is active On
TCS is inactive Off
VDC SIGNAL VDC operation VDC is active On
VDC is inactive Off
EBD FAIL SIG EBD fail-safe signal In EBD fail-safe On
EBD is normal Off
ABS FAIL SIG ABS fail-safe signal In ABS fail-safe On
ABS is normal Off
TCS FAIL SIG TCS fail-safe signal In TCS fail-safe On
TCS is normal Off
VDC FAIL SIG VDC fail-safe signal In VDC fail-safe On
VDC is normal Off
CRANKING SIG Crank operation Crank is active On
Crank is inactive Off
FLUID LEV SW Brake fluid level switch When brake fluid level switch ON On
When brake fluid level switch OFF Off
PARK BRAKE SW Parking brake switch Parking brake switch is active On
Parking brake switch is inactive Off
Monitor item Display content
Data monitor
Condition Reference value in
normal operation
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

C1154 PNP SWITCHBRC-91
< DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS]
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C1154 PNP SWITCH
DescriptionINFOID:0000000009463800
The transmission range switch signal is transmitted to t he ABS actuator and electric unit (control unit) using
the CAN communication lines.
DTC LogicINFOID:0000000009463801
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF DIAGNOSTIC RESULT
With CONSULT.
1. Turn the ignition switch OFF to ON.
2. Perform self diagnostic result.
Is DTC C1154 detected?
YES >> Proceed to diagnosis procedure. Refer to BRC-91, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009463802
1.CHECK DATA MONITOR
Select “SLCT LVR POSI” in “Data Monitor” and check transmission range switch signal.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-128, "Removal and Installa-
tion".
NO >> GO TO 2
2.CHECK TRANSMISSION RANGE SWITCH
Perform transmission range switch inspection. Refer to TM-180, "Inspection"
(RE0F10D) or TM-379, "Inspec-
tion" (RE0F10E).
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-128, "Removal and Installa-
tion".
NO >> Repair or replace malfunctioning components.
Special Repair RequirementINFOID:0000000009463803
1.ADJUSTMENT OF STEERING AN GLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to BRC-58, "Work Procedure"
.
DTC Display Condition Possible Cause
C1154 PNP POS SIG Transmission range switch signal or communication line
between the ABS actuator and el ectric unit (control unit)
and TCM is open or shorted. • Harness or connector
• Transmission range switch
Selector lever position SLCT LVR POSI (Data monitor)
P position P
R position R
N position N
D position D
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CO-48
< REMOVAL AND INSTALLATION >[VQ35DE]
WATER PUMP
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
• Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Transmission/
transaxle fluid CVT Models Leakage Level/Leakage Leakage
Other oils and fluids* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gas — Leakage —
Revision: November 20132014 Altima NAM

DAS-48
< DTC/CIRCUIT DIAGNOSIS >[ITS CONTROL UNIT]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009464681
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication
line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units , and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a hi gh rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to LAN-32, "CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
ITS COMMUNICATION
• ITS communication is a multiplex communication system . This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
• ITS communication lines adopt twisted-pair line st yle (two lines twisted) for noise immunity.
DTC LogicINFOID:0000000009464682
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first di agnose the CAN communication system.
Diagnosis ProcedureINFOID:0000000009464683
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the MAIN switch of ITS system ON, and then wait for 30 seconds or more.
3. Perform “All DTC Reading” with CONSULT.
4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “AVM”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to DAS-48, "Description".
NO >> Refer to GI-43, "Intermittent Incident"
.
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If ITS control unit is not transmitting or receiving
CAN communication signal or ITS communica-
tion signal for 2 seconds or more • CAN communication system
• ITS communication system
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