steering NISSAN TEANA 2014 Service Manual

SYSTEMEC-573
< SYSTEM DESCRIPTION > [VQ35DE]
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AIR CONDITIONING CUT CONTROL : System DescriptionINFOID:0000000009462517
SYSTEM DIAGRAM
*1: Automatic air conditioning system
*2: Manual air conditioning system
INPUT/OUTPUT SIGNAL CHART
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: Automatic air conditioning system
*3: Manual air conditioning system
SYSTEM DESCRIPTION
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned OFF.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
JSBIA2685GB
Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed
*1
Air conditioner
cut control IPDM E/R
↓
Air conditioner relay
↓
Compressor
Camshaft position sensor (PHASE)
Engine coolant temperature sensor Engine coolant temperature
Accelerator pedal position sensor Accelerator pedal position
Battery Battery voltage*1
Refrigerant pressure sensor Refrigerant pressure
Power steering control module EPS operation signal
CAN communi-
cation line
Combination meter Vehicle speed signal
A/C auto amp.
*2• A/C ON signal
• Blower fan ON signal
BCM
*3
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EC-574
< SYSTEM DESCRIPTION >[VQ35DE]
SYSTEM
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System DescriptionINFOID:0000000009462518
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM via the CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a dr iver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric thro ttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indi cator and SET indicator in combination meter. If any
malfunction occurs in the ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in a safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE indicato r in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET la mp in combination meter illuminates.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed r eaches maximum speed controlled by the system.
And then ASCD will maintain the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
• CANCEL switch is pressed
• ON/OFF (MAIN) switch pressed (Set speed is cleared)
JSBIA2692GB
Sensor Input signal to ECM ECM function Actuator
Brake pedal position switch Brake pedal operation ASCD vehicle speed control Electric throttle control actuator
Stop lamp switch Brake pedal operation
ASCD steering switch ASCD steering switch operation
Transmission range switch Park/neutral position signal ASCD status signal Combination meter
Combination meter Vehicle speed*
TCM Output shaft revolution signal*
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EC-582
< SYSTEM DESCRIPTION >[VQ35DE]
SYSTEM
Manual Air Conditioning System
INPUT/OUTPUT SIGNAL CHART
*1: ECM determines the start signal status
by the signals of engine speed and battery voltage.
*2: Automatic air conditioning system
*3: Manual air conditioning system
SYSTEM DESCRIPTION
ECM calculates the value of signal transmitted from t he accelerator pedal and activates the throttle valve by
transmitting a control signal to the electric throttle c ontrol actuator. This allows the optimum throttle angle and
improves drivability and fuel consumption. In addition, ECM learns the fully closed position every time when
the ignition switch is turned OFF to improv e the accuracy in throttle valve position.
When a malfunction occurs in the throttle control system , the throttle valve is closed by the return spring and
maintains the minimum engine speed by holding a slightly opened condition which is close to the fully opened
condition. This allows the securing of brake syste m, power steering system, and electric system and the
ensuring of the safety.
INTAKE VALVE TIMING CONTROL
JSBIA1917GB
Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed
*1
Throttle controlElectric throttle control
actuator
Engine coolant temperature sensor Engine coolant temperature
Mass air flow sensor Amount of intake air
Intake air temperature sensor Intake air temperature
Accelerator pedal position sensor Accelerator pedal position
Ignition switch Start signal and ignition OFF
Combination meter CAN communi-
cation Vehicle speed signal
A/C auto amp.
*2CAN communi-
cation • A/C ON signal
• Blower fan ON signal
BCM
*3
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OPERATIONEC-589
< SYSTEM DESCRIPTION > [VQ35DE]
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OPERATION
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (
ASCD) : Switch Name and Function
INFOID:0000000009462530
SWITCHES AND INDICATORS
SET SPEED RANGE
ASCD system can be set the following vehicle speed.
SWITCH OPERATION
1. CRUISE indicator 2. SET indicator 3. CANCEL switch
4. ACCEL/RES switch (ACCELERATE/RESUME) 5. COAST/SET switch 6. ON/OFF (MAIN) switch
A. On the combination meter (Informa- tion display) B. On the steering wheel
JPBIA5872ZZ
Minimum speed (Approx.) Maximum speed (Approx.)
38 km/h (24 MPH) 144 km/h (89 MPH)
Item Function
CANCEL switch Cancels the cruise control driving.
ACCEL/RES switch
(RESUME/ACCELERATE) • Resumes the set speed.
• Increases speed incrementally during cruise control driving.
COAST/SET switch
(SET/COAST) • Sets desired cruise speed.
• Decreases speed incrementally during cruise control driving.
ON/OFF (MAIN) switch Master switch to activate the ASCD system.
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EC-604
< SYSTEM DESCRIPTION >[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
EVAP SYS PRES VThe signal voltage of EVAP control
system pressure sensor is dis-
played.
FUEL LEVEL SE V ×The signal voltage of the fuel level
sensor is displayed.
START SIGNAL On/Off Indicates start signal status [On/Off]
computed by the ECM according to
the signals of engine speed and bat-
tery voltage. After starting the engine, [Off] is dis-
played regardless of the starter sig-
nal.
CLSD THL POS On/Off ××Indicates idle position [On/Off] com-
puted by ECM according to the ac-
celerator pedal position sensor
signal.
AIR COND SIG On/Off ××Indicates [On/Off] condition of the air
conditioner switch as determined by
the air conditioner signal.
PW/ST SIGNAL On/Off ××[On/Off] condition of the power
steering system (determined by the
signal voltage of the power steering
pressure sensor) is indicated.
LOAD SIGNAL On/Off ××Indicates [On/Off] condition from the
electrical load signal.
• On: Rear window defogger switch
is ON and/or lighting switch is in
2nd position.
• Off: Both rear window defogger
switch and lighting switch are
OFF.
IGNITION SW On/Off ××Indicates [On/Off] condition from ig-
nition switch signal.
HEATER FAN SW On/Off ×Indicates [On/Off] condition from the
heater fan switch signal.
BRAKE SW On/Off Indicates [On/Off] condition from the
stop lamp switch signal.
INJ PULSE-B1 msec Indicates the actual fuel injection
pulse width compensated by ECM
according to the input signals. When the engine is stopped, a cer-
tain computed value is indicated.
INJ PULSE-B2
IGN TIMING BTDC ×Indicates the ignition timing comput-
ed by ECM according to the input
signals. When the engine is stopped, a cer-
tain value is indicated.
CAL/LD VALUE % “Calculated load value” indicates the
value of the current air flow divided
by peak air flow.
MASS AIRFLOW g/s Indicates the mass air flow comput-
ed by ECM according to the signal
voltage of the mass air flow sensor.
PURG VOL C/V % • Indicates the EVAP canister purge
volume control solenoid valve
control value computed by the
ECM according to the input sig-
nals.
• The opening becomes larger as the value increases.
Monitored item Unit
Monitor Item Selec-
tion
Description Remarks
ECU IN-
PUT SIG- NALS MAIN-
SIG-
NALS
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EC-614
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
TP SEN 1-B1• Ignition switch: ON
(Engine stopped)
• Selector lever: D position Accelerator pedal: Fully re
leased More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
TP SEN 2-B1*
1• Ignition switch: ON (Engine stopped)
• Selector lever: D position Accelerator pedal: Fully re
leased More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
FUEL T/TMP SE Ignition switch: ON Indicates fuel tank tempera-
ture
EVAP SYS PRES Ignition switch: ON Approx. 1.8 - 4.8 V
FUEL LEVEL SE Ignition switch: ON Depending on fuel level of
fuel tank
START SIGNAL Ignition switch: ON → START → ON Off → On → Off
CLSD THL POS Ignition switch: ON
(Engine stopped) Accelerator pedal:
Fully released On
Accelerator pedal: Slightly depressed Off
AIR COND SIG Engine: After warming up, idle the
engine Air conditioner switch: OFF Off
Air conditioner switch: ON
(Compressor operates.) On
PW/ST SIGNAL Engine: After warming up, idle the
engine Steering wheel: Not being turned Off
Steering wheel: Being turned On
LOAD SIGNAL Ignition switch: ON Rear window defogger switch: ON
and/or
Lighting switch: 2nd position On
Rear window defogger switch and lighting
switch: OFF Off
IGNITION SW Ignition switch: ON → OFF → ON On → Off → On
HEATER FAN SW Engine: After warming up, idle the
engine Heater fan switch: ON On
Heater fan switch: OFF Off
BRAKE SW Ignition switch: ON Brake pedal: Fully released Off
Brake pedal: Slightly depressed On
INJ PULSE-B1 • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
INJ PULSE-B2 • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec
IGN TIMING • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 7 - 17
°BTDC
2,000 rpm 25 - 45 °BTDC
CAL/LD VALUE • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 5 - 35%
2,500 rpm 5 - 35%
MASS AIRFLOW • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle 2.0 - 6.0 g/s
2,500 rpm 7.0 - 20.0 g/s
PURG VOL C/V • Engine: After warming up
• Selector lever: P or N position
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal: Not depressed even
slightly, after engine starting.) 0%
2,000 rpm —
Monitor Item Condition Values/Status
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EC-626
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
96
(R) 64
(P) Sensor power supply
(Refrigerant pressure sensor) — [Ignition switch: ON] 5 V
97
(W) 100
(O) Accelerator pedal position
sensor 1 Input[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-
leased 0.5 - 1.0 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-
pressed 4.2 - 4.8 V
98
(P) 11 6
(G) Accelerator pedal position
sensor 2 Input[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully re-
leased 0.25 - 0.50 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully de-
pressed 2.0 - 2.5 V
99
(R) 100
(O) Sensor power supply
(Accelerator pedal position
sensor 1) — [Ignition switch: ON] 5 V
100 (O) —Sensor ground
(Accelerator pedal position
sensor 1) —— —
101 (O) 108
(R) ASCD steering switch Input [Ignition switch: ON]
ASCD steering switch: OFF 4 V
[Ignition switch: ON]
MAIN switch: Pressed 0 V
[Ignition switch: ON]
CANCEL switch: Pressed 1 V
[Ignition switch: ON]
RESUME/ACCELERATE
switch: Pressed 3 V
[Ignition switch: ON]
SET/COAST switch: Pressed 2 V
102 (G) 11 2
(R) EVAP control system pres-
sure sensor Input [Ignition switch: ON] 1.8 - 4.8 V
103 (G) 11 6
(G) Sensor power supply
(Accelerator pedal position
sensor 2) — [Ignition switch: ON] 5 V
104 (P) — Data link connector
Input/
Output ——
106 (Y) 128
(GR) EVAP canister vent control
valve Output [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
107 (P) 11 2
(R) Sensor power supply
(EVAP control system pres-
sure sensor, engine oil pres-
sure sensor) — [Ignition switch: ON] 5 V
108 (R) —Sensor ground
(ASCD steering switch) —— —
109 (L) 128
(GR) Ignition switch Input [Ignition switch: OFF] 0 V
[Ignition switch: ON] BATTERY VOLTAGE
(11 - 14 V)
Terminal No. Description
ConditionVa l u e
(Approx.)
+ -– Signal name Input/
Output
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EC-630
< ECU DIAGNOSIS INFORMATION >[VQ35DE]
ECM
DTC Index
INFOID:0000000009462545
× :Applicable —: Not applicable
2 P0031, P0032, P0051, P0052 Air fuel ratio (A/F) sensor 1 heater
P0037, P0038, P0057, P0058 Heated oxygen sensor 2 heater
P0075, P0081 Intake valve timing control solenoid valve
P0130, P0131, P0132, P014 C, P014D, P014E, P014F,
P0150, P0151, P0152, P209 6, P2097, P2098, P2099 Air fuel ratio (A/F) sensor 1
P0137, P0138, P0139, P0157, P0158, P0159 Heated oxygen sensor 2
P0441 EVAP control system purge flow monitoring
P0443, P0444, P0445 EVAP canister purge volume control solenoid valve
P0447, P0448 EVAP canister vent control valve
P0451, P0452, P0453 EVAP control system pressure sensor
P0603 ECM power supply
P1217 Engine over temperature (OVERHEAT)
P1800, P1801 VIAS cont rol solenoid valve
P1805 Brake switch
P2100, P2103 Throttle control motor relay
P2101 Electric throttle control function
P2118 Throttle control motor
3 P0011, P0021 Intake valve timing control P0171, P0172, P0174, P0175 Fuel injection system function
P0300 - P0306 Misfire
P0420, P0430 Three way catalyst function
P0456 EVAP control syst em (VERY SMALL LEAK)
P0506, P0507 Idle speed control system
P050A, P050E Cold start control
P0524 Engine oil pressure
P1148, P1168 Closed loop control
P1212 TCS communication line
P1564 ASCD steering switch
P1572 Brake pedal position switch
P1574 ASCD vehicle speed sensor
P2119 Electric throttle control actuator
Priority Detected items (DTC) Detected items (DTC)
DTC*1
Items
(CONSULT screen terms) SRT
code Trip MIL Permanent
DTC group*4Refer-
ence page
CONSULT
GST
*2ECM*3
U0101 0101*5LOST COMM (ECM) — 1 ×BEC-713
U1001
1001*5CAN COMM CIRCUIT — 2 — — EC-714
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED. ——
Blinking*6——
P0011 0011 INT/V TIM CONT-B1 ×2 ×BEC-715
P0021 0021 INT/V TIM CONT-B2 ×2 ×BEC-715
P0031 0031 A/F SEN1 HTR (B1) — 2 ×BEC-719
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BASIC INSPECTIONEC-675
< BASIC INSPECTION > [VQ35DE]
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BASIC INSPECTION
Work ProcedureINFOID:0000000009462550
1.INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for scheduled maintenance.
2. Open engine hood and check the following:
- Harness connectors for improper connections
- Wiring harness for improper connections, pinches and cut
- Vacuum hoses for splits, kinks and improper connections
- Hoses and ducts for leakage
- Air cleaner clogging
- Gasket
3. Check that electrical or mechanical loads are not applied.
- Head lamp switch is OFF.
- Air conditioner switch is OFF.
- Rear window defogger switch is OFF.
- Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature indicator points to the middle of gauge.
Check that engine stays below 1,000 rpm.
5. Run engine at approximately 2,000 rpm for approximately 2 min- utes under no load.
6. Check that no DTC is displayed with CONSULT or GST.
Are any DTCs detected?
YES >> GO TO 2.
NO >> GO TO 3.
2.REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3
3.CHECK TARGET IDLE SPEED
1. Run engine at approximately 2,000 rpm for approximately 2 minutes under no load.
SEF983U
SEF976U
SEF977U
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IDLE AIR VOLUME LEARNINGEC-683
< BASIC INSPECTION > [VQ35DE]
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IDLE AIR VOLUME LEARNING
DescriptionINFOID:0000000009462557
Idle Air Volume Learning is a function of ECM to learn
the idle air volume that keeps engine idle speed within
the specific range. It must be performed under the following conditions:
• Each time the electric throttle c ontrol actuator or ECM is replaced.
• Idle speed or ignition timing is out of the specification.
Work ProcedureINFOID:0000000009462558
1.PRECONDITIONING
Check that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212 °F)
• Selector lever position: P or N
• Electric load switch: OFF
(Air conditioner, head lamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
started the head lamp will not illuminate.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- With CONSULT: Drive vehicle until “ATF TEMP SEN” in “DATA MONITOR” mode of “CVT” system indicates
less than 0.9 V.
- Without CONSULT: Drive vehicle for 10 minutes.
Will CONSULT be used?
YES >> GO TO 2.
NO >> GO TO 3.
2.PERFORM IDLE AIR VOLUME LEARNING
With CONSULT
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-681, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-682, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEA RN” in “WORK SUPPORT” mode.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.PERFORM IDLE AIR VOLUME LEARNING
Without CONSULT
NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-681, "Work Procedure"
.
2. Perform Throttle Valve Closed Position Learning. Refer to EC-682, "Work Procedure"
.
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly 5 times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal for approx. 20 seconds until the MIL stops blinking
and turns ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turns ON.
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