2008 NISSAN TEANA gear switch

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
BRC-53
< SYMPTOM DIAGNOSIS >[ABS]
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PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
Diagnosis ProcedureINFOID:0000000003766856
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it). However, this is normal.
 When shifting gears
 When driving on slippery road
 During cornering at high speed
 When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
 When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1.SYMPTOM CHECK 1
Check that there are pedal vibrations when the engine is started.
Do vibrations occur?
YES >> GO TO 2.
NO >> Inspect the brake pedal.
2.SYMPTOM CHECK 2
Check that there are ABS operation noises when the engine is started.
Do the operation noises occur?
YES >> GO TO 3.
NO >> Perform self-diagnosis.
3.SYMPTOM CHECK 3
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO >> Normal

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-81
< FUNCTION DIAGNOSIS >[VDC/TCS/ABS]
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RR RH SENSOR
[km/h (MPH)]××Wheel speed calculated by rear RH wheel sensor signal
STOP LAMP SW
(On/Off)××Stop lamp switch signal status
BATTERY VOLT
(V)××Battery voltage supplied to the ABS actuator and electric
unit (control unit)
GEAR××Gear position determined by TCM
OFF SW
(On/Off)××VDC OFF switch
YAW RATE SEN
(d/s)××Yaw rate detected by yaw rate/side G sensor
ACCEL POS SIG
(%)×Throttle actuator opening/closing is displayed
(Linked with accelerator pedal)
SIDE G-SENSOR
(m/s
2)×Transverse G detected by yaw rate/side G sensor
STR ANGLE SIG
(°)×Steering angle detected by steering angle sensor
PRESS SENSOR
(bar)×Brake fluid pressure detected by pressure sensor
ENGINE RPM
[tr/min (rpm)]×Engine speed
FLUID LEV SW
(On/Off)×Brake fluid level switch signal status
PARK BRAKE SW
(On/Off)×Parking brake switch signal status
FR RH IN SOL
(On/Off) (Note 1)×
Operation status of each solenoid valve FR RH OUT SOL
(On/Off) (Note 1)×
FR LH IN SOL
(On/Off) (Note 1)×
FR LH OUT SOL
(On/Off) (Note 1)×
RR RH IN SOL
(On/Off) (Note 1)×
RR RH OUT SOL
(On/Off) (Note 1)×
RR LH IN SOL
(On/Off) (Note 1)×
RR LH OUT SOL
(On/Off) (Note 1)×
MOTOR RELAY
(On/Off)×Motor and motor relay operation
ACTUATOR RLY
(On/Off) (Note 1)×Actuator relay operation
ABS WARN LAMP
(On/Off)×ABS warning lamp
OFF LAMP
(On/Off)×VDC OFF indicator lamp
SLIP LAMP
(On/Off)×SLIP indicator lamp Monitor item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN SIGNALS

BRC-132
< ECU DIAGNOSIS >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
ECU DIAGNOSIS
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference ValueINFOID:0000000003767019
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 contentData monitor
ConditionReference value in
normal operation
FR LH SENSORWheel speed calculated by front LH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
FR RH SENSORWheel speed calculated by front RH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
RR LH SENSORWheel speed calculated by rear LH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
RR RH SENSORWheel speed calculated by rear RH
wheel sensor signal is displayedVehicle stopped 0 [km/h (MPH)]
Vehicle running
(Note 1)Nearly matches the
speedometer dis-
play (± 10% or less)
STOP LAMP SW Stop lamp switch signal statusWhen brake pedal is depressed On
When brake pedal is not depressed Off
BATTERY VOLTBattery voltage supplied to the ABS ac-
tuator and electric unit (control unit)Ignition switch ON 10 – 16 V
GEAR Gear position determined by TCM1st gear
2nd gear
3rd gear
4th gear
5th gear
6th gear
7th gear
8th gear
other0
1
2
3
4
5
6
7
0
OFF SW VDC OFF switch ON/OFFVDC OFF switch ON
(When VDC OFF indicator lamp is ON)On
VDC OFF switch OFF
(When VDC OFF indicator lamp is OFF)Off
YAW RATE SENYaw rate detected by yaw rate/side G
sensorVehicle stopped Approx. 0 d/s
Vehicle turning right Negative value
Vehicle turning left Positive value
ACCEL POS SIG Throttle actuator opening/closing is
displayed (linked with accelerator ped-
al)Accelerator pedal not depressed
(ignition switch is ON)0 %
Depress accelerator pedal
(ignition switch is ON)0 - 100 %

BRC-146
< SYMPTOM DIAGNOSIS >[VDC/TCS/ABS]
PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
Diagnosis ProcedureINFOID:0000000003767027
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it). However, this is normal.
 When shifting gears
 When driving on slippery road
 During cornering at high speed
 When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
 When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1.SYMPTOM CHECK 1
Check that there are pedal vibrations when the engine is started.
Do vibrations occur?
YES >> GO TO 2.
NO >> Inspect the brake pedal.
2.SYMPTOM CHECK 2
Check that there are ABS operation noises when the engine is started.
Do the operation noises occur?
YES >> GO TO 3.
NO >> Perform self-diagnosis.
3.SYMPTOM CHECK 3
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO >> Normal

EC-28
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
MULTIPORT FUEL INJECTION SYSTEM
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from the crankshaft position sensor (POS), camshaft position
sensor (PHASE) and the mass air flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.

 During warm-up
 When starting the engine
 During acceleration
 Hot-engine operation
 When selector lever is changed from N to D
 High-load, high-speed operation
 During deceleration
 During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Intake air temperature sensor Intake air temperature
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
TCM (VQ35DE engine)
Park/neutral position (PNP) switch (VQ25DE engine)Gear position
Battery
Battery voltage*
3
Knock sensor Engine knocking condition
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
ABS actuator and electric unit (control unit)
VDC/TCS operation command*
2
BCM
Air conditioner operation*2
ABS actuator and electric unit (control unit)
Vehicle speed*2

ELECTRIC IGNITION SYSTEM
EC-37
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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ELECTRIC IGNITION SYSTEM
System DiagramINFOID:0000000003856469
System DescriptionINFOID:0000000003856470
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
Ignition order: 1 - 2 - 3 - 4 - 5 - 6
The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the
engine. The ignition timing data is stored in the ECM.
The ECM receives information such as the injection pulse width and camshaft position sensor (PHASE) sig-
nal. Computing this information, ignition signals are transmitted to the power transistor.
During the following conditions, the ignition timing is revised by the ECM according to the other data stored in
the ECM.
 At starting
 During warm-up
At idle
 At low battery voltage
 During acceleration
The knock sensor retard system is designed only for emergencies. The basic ignition timing is programmed
within the anti-knocking zone, if recommended fuel is used under dry conditions. The retard system does not
JMBIA1493GB
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
2
Piston position
Ignition timing
controlIgnition coil
(with power transistor) Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Battery
Battery voltage*
2
Knock sensor Engine knocking
TCM (VQ35DE engine)
Park/neutral position (PNP) switch (VQ25DE engine)Gear position
ABS actuator and electric unit (control unit)
Vehicle speed*
1

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-51
< FUNCTION DIAGNOSIS >[VQ25DE, VQ35DE]
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System DiagramINFOID:0000000003856477
System DescriptionINFOID:0000000003856478
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver 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 throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE lamp and SET lamp in combination meter. If any malfunc-
tion 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 lamp 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 lamp 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 reaches 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
 More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
JMBIA1494GB
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed
controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD steering switch ASCD steering switch operation
TCM (VQ35DE engine)
Park/neutral position (PNP) switch (VQ25DE
engine)Gear position
Powertrain revolution*
ABS actuator and electric unit (control unit) Vehicle speed*

P0130, P0150 A/F SENSOR 1
EC-165
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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Component Function CheckINFOID:0000000003856566
1.PERFORM COMPONENT FUNCTION CHECK
With GST
1. Start engine and warm it up to normal operating temperature.
2. Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in the suitable gear position.
3. Set D position, then release the accelerator pedal fully until the vehicle speed decreases to 50 km/h (31
MPH).
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Never apply brake when releasing the accelerator pedal.
4. Repeat steps 2 and 3 for 5 times.
5. Stop the vehicle and turn ignition switch OFF.
6. Wait at least 10 seconds and restart engine.
7. Repeat steps 2 and 3 for 5 times.
8. Stop the vehicle and connect GST to the vehicle.
9. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-165, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000003856567
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground Inspection in GI-37, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect A/F sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check the voltage between A/F sensor 1 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
 IPDM E/R harness connector F12
 15A fuse (No. 46)
 Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
DTCA/F sensor 1
Ground Voltage
Bank Connector Terminal
P0130 1 F27 4
Ground Battery voltage
P0150 2 F64 4