brake sensor NISSAN TEANA 2003 Manual PDF

EC-426
[VQ]
TROUBLE DIAGNOSIS

ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-427, "
Freeze Frame Data and 1st Trip Freeze Frame Data" . ItemDIAGNOSTIC TEST MODE
WORK
SUPPORTSELF-DIAGNOSTIC
RESULTS
DATA
MONITORDATA
MONITOR
(SPEC)ACTIVE
TEST
DTC*1FREEZE
FRAME
DATA*2
ENGINE CONTROL COMPONENT PARTS
INPUT
Crankshaft position sensor (POS)××××
Camshaft position sensor (PHASE)××××
Mass air flow sensor×××
Engine coolant temperature sensor×××××
Heated oxygen sensor 1×××
Heated oxygen sensor 2××
Wheel sensor×××
Accelerator pedal position sensor×××
Throttle position sensor×××
Intake air temperature sensor×××
Knock sensor×
Refrigerant pressure sensor××
Closed throttle position switch (accelerator
pedal position sensor signal)××
Air conditioner switch××
Park/neutral position (PNP) switch×××
Stop lamp switch×××
Power steering pressure sensor×××
Battery voltage××
Load signal××
ASCD steering switch×××
ASCD brake switch×××
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector×××
Power transistor (Ignition timing)×××
Throttle control motor relay×××
Throttle control motor×
EVAP canister purge volume control sole-
noid valve×××
Air conditioner relay××
Fuel pump relay××××
Cooling fan relay××××
Heated oxygen sensor 1 heater××
Heated oxygen sensor 2 heater××
Intake valve timing control solenoid valve××××
VIAS control solenoid valve×××
Electronic controlled engine mount×××

TROUBLE DIAGNOSIS
EC-429
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EC
START SIGNAL
[ON/OFF]××
Indicates start signal status [ON/OFF] com-
puted by the ECM according to the signals
of engine speed and battery voltage.
After starting the engine, [OFF] is
displayed regardless of the starter
signal.
CLSD THL POS
[ON/OFF]××

Indicates idle position [ON/OFF] computed
by ECM according to the accelerator 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.
P/N POSI SW
[ON/OFF]××

Indicates [ON/OFF] condition from the
park/neutral position (PNP) switch 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 sig-
nal) 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 ignition
switch signal.
HEATER FAN SW
[ON/OFF]×

Indicates [ON/OFF] condition from 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
[msec]
IGN TIMING
[BTDC]×

Indicates the ignition timing computed by
ECM according to the input signals.
When the engine is stopped, a cer-
tain value is indicated.
PURG VOL C/V
[%]

Indicates the EVAP canister purge volume
control solenoid valve control value com-
puted by the ECM according to the input
signals.

The opening becomes larger as the value
increases.
INT/V TIM (B1)
[°CA]

Indicates [°CA] of intake camshaft
advanced angle.
INT/V TIM (B2)
[°CA]
INT/V SOL (B1) [%]

The control condition of the intake valve
timing control solenoid valve (determined
by ECM according to the input signals) is
indicated.

The advance angle becomes larger as the
value increases. INT/V SOL (B2) [%]Monitored item
[Unit]ECM
INPUT
SIGNALSMAIN
SIGNALSDescription Remarks

TROUBLE DIAGNOSIS
EC-437
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EC

*: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ from
ECM terminals voltage signal.I/P PULLY SPD

Vehicle speed: More than 20 km/h (12 MPH)Almost the same speed as the
tachometer indication
VEHICLE SPEED

Turn drive wheels and compare CONSULT-II value with the speedometer
indication.Almost the same speed as the
speedometer indication
O2SEN HTR DTY

Engine coolant temperature when engine started: More than 80°C
(176°F)

Engine speed: Below 3,600 rpmApprox. 40%
AC PRESS SEN

Engine: Idle

Both A/C switch and blower fan switch: ON (Compressor operates)1.0 - 4.0V
VEH SPEED SE

Turn drive wheels and compare CONSULT-II value with the speedometer
indication.Almost the same speed as the
speedometer indication
SET VHCL SPD

Engine: Running ASCD: Operating.The preset vehicle speed is dis-
played.
MAIN SW

Ignition switch: ONMAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW

Ignition switch: ONCANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW

Ignition switch: ONRESUME/ACCELERATE switch: Pressed ON
RESUME/ACCELERATE switch:
ReleasedOFF
SET SW

Ignition switch: ONSET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1

Ignition switch: ONBrake pedal: Fully released ON
Brake pedal: Slightly depressed OFF
BRAKE SW2

Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
CRUISE LAMP

Ignition switch: ONMAIN switch: Pressed at the 1st time →
at the 2nd timeON → OFF
SET LAMP

MAIN switch: ON

Vehicle speed: Between 40
km/h (25 MPH) and 144 km/
h (89 MPH)SET/COAST switch pressed ON
SET/COAST switch released OFF MONITOR ITEM CONDITION SPECIFICATION

EC-624
[VQ]
DTC P1720 VSS

DTC P1720 VSSPFP:31036
DescriptionBBS005B3
NOTE:
If DTC P1720 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-458, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
ECM receives two vehicle speed signals via CAN communication line. One is sent from “ABS actuator and
electric unit (control unit)” via “unified meter and A/C amp.”, and the other is from TCM (Transmission control
module). ECM uses these signals for engine control.
CONSULT-II Reference Value in Data Monitor ModeBBS005B4
Specification data are reference values.
On Board Diagnosis LogicBBS005B5
The MI will not light up for this self-diagnosis.
DTC Confirmation ProcedureBBS005B6
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine.
4. Drive vehicle at a speed of 20 km/h (12 MPH) or more for at
least 5 seconds without brake pedal depressing.
5. If 1st trip DTC is detected, go to EC-625, "
Diagnostic Procedure"
.
MONITOR ITEM CONDITION SPECIFICATION
VHCL SPEED SE

Turn drive wheels and compare CONSULT-II value with the speedometer
indication.Almost the same speed as the
speedometer indication
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1720
1720Vehicle speed sensor
(TCM output)A difference between two vehicle speed sig-
nals is out of the specified range.

Harness or connectors
(Secondary speed sensor circuit is open or
shorted)

Harness or connectors
(Wheel sensor circuit is open or shorted.)

TCM

Secondary speed sensor

ABS actuator and electric unit (control unit)

Wheel sensor

Unified meter and A/C amp.
PBIB2673E

EM-224
[VQ]
ENGINE ASSEMBLY


Do not start working until exhaust system and engine coolant are cool enough.

If items or work required are not covered by the engine section, refer to the applicable sections.

Always use the support point specified for lifting.

Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for
unavoidable reasons, support at the rear axle jacking point with transmission jack or similar tool
before starting work, in preparation for the backward shift of center of gravity.

For supporting points for lifting and jacking point at rear axle, refer to GI-37, "Garage Jack and
Safety Stand and 2-Pole Lift" .
REMOVAL
Outline
At first, remove engine and transaxle assembly with front suspension member from vehicle downward. Sepa-
rate front suspension member, and then separate engine from transaxle.
Preparation
1. Release fuel pressure. Refer to EC-392, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-34, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove the following parts:

Engine cover; Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .

Hood assembly; Refer to BL-13, "HOOD" .

Front road wheels and tires.

Undercover and splash guards (RH and LH).

Air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly; Refer to EM-
131, "AIR CLEANER AND AIR DUCT" .

Battery, battery tray and battery tray bracket; Refer to SC-4, "BATTERY" .

Drive belts; Refer to EM-128, "DRIVE BELTS" .

Radiator, reservoir of radiator; Refer to CO-37, "RADIATOR" .

Front wiper arm; Refer to WW-4, "FRONT WIPER AND WASHER SYSTEM" .

Cowl top cover. Refer to EI-21, "COWL TOP" .
4. Disconnect engine room harness at the ECM side.
CAUTION:
To keep clean harness connector and avoid damage and foreign materials, cover them completely
with plastic bags or something similar.
Engine Room
1. Disconnect heater hoses. Refer to CO-52, "WATER OUTLET AND WATER PIPING" .

Install plug to avoid leakage of engine coolant.
2. Remove EVAP hose. Refer to EM-133, "
INTAKE MANIFOLD COLLECTOR" .
3. Disconnect fuel feed hose (with fuel damper) quick connector at centralized under-floor piping side. Refer
to EM-155, "
FUEL INJECTOR AND FUEL TUBE" .

Install plug to avoid leakage of fuel.
4. Disconnect shift control cable at transaxle side. Refer to AT- 2 1 3 , "
SHIFT CONTROL SYSTEM" .
5. Disconnect brake booster vacuum hose at engine side. Refer to EM-133, "
INTAKE MANIFOLD COLLEC-
TOR" .
6. Remove IPDM E/R mounting bolt and IPDM E/R bracket mounting bolts, and move it to aside. Refer to
PG-17, "
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)" .
7. Remove alternator. Refer to SC-27, "
CHARGING SYSTEM" .
8. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to ATC-133,
"Components" .
9. Disconnect suction hoses of power steering oil pump at reservoir tank side.

Install plug to avoid leakage of power steering fluid.

FRONT WHEEL HUB AND KNUCKLE
FAX-5
C
E
F
G
H
I
J
K
L
MA
B
FA X

FRONT WHEEL HUB AND KNUCKLEPFP:40202
On-Vehicle Inspection BDS0007K
Make sure that the mounting conditions (looseness, backlash) of each component and component conditions
(wear, damage) are normal.
WHEEL BEARING INSPECTION

Move wheel hub and bearing assembly in the axial direction by hand. Make sure there is no looseness of
wheel bearing.

Rotate wheel hub and make sure that is no unusual noise or other irregular conditions. If there is any of
irregular conditions, replace wheel hub and bearing assembly
Removal and InstallationBDS0007L
COMPONENT
REMOVAL
1. Remove tires from vehicle.
2. Remove wheel sensor from steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove torque member fixing bolts. Hang torque member in a place where it will not interfere with work.
Refer to BR-26, "
FRONT DISC BRAKE" .
NOTE:
Do not depress brake pedal while brake caliper is removed.
4. Put matching mark on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
5. Remove cotter pin, then loosen hub lock nut.
6. Remove wheel hub and bearing assembly mounting bolts.Axial end play : 0.05 mm (0.002 in) or less
1. Cotter pin 2. Disc rotor 3. Wheel hub and bearing assembly
4. Splash guard 5. Steering knuckle 6. Stopper bolt
SDIA1756E
SDIA2608E

FRONT WHEEL HUB AND KNUCKLE
FAX-7
C
E
F
G
H
I
J
K
L
MA
B
FA X

INSTALLATION

Installation is the reverse order of the removal. For tightening torque, refer to FAX-5, "COMPONENT" .
NOTE:
Do not reuse non-reusable parts.

When installing transverse link ball joint, fix bolt to avoid rotation, and then tighten the nut.

Perform the final tightening of each of parts under unladen conditions, which were removed when remov-
ing wheel hub and bearing assembly and steering knuckle. Check the wheel alignment. Refer to FSU-5,
"Wheel Alignment Inspection" .

Adjust neutral position of steering angle sensor after checking the wheel alignment for the models with
VDC. Refer to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .

Check wheel sensor harness for proper connection. Refer to BRC-33, "WHEEL SENSORS" .

Assembly disc rotor and wheel hub and bearing assembly by
aligning each matching mark as shown in the figure when install-
ing disc rotor.
NOTE:
Refer to BR-26, "
FRONT DISC BRAKE" for assembly when
removing disc rotor without matching mark.
SDIA2608E

FAX-8
FRONT DRIVE SHAFT

FRONT DRIVE SHAFTPFP:39100
On-Vehicle InspectionBDS0007M

Check drive shaft mounting point and joint for looseness and other damage.

Check boot for cracks and other damage.
CAUTION:
Replace entire drive shaft assembly when noise or vibration occur from drive shaft.
DRIVE SHAFT BOOT REPLACEMENT
1. Remove tires from vehicle.
2. Remove wheel sensor from steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove torque member fixing bolts. Hang torque member in a place where it will not interfere with work.
Refer to BR-26, "
FRONT DISC BRAKE" .
NOTE:
Do not depress brake pedal while brake caliper is removed.
4. Remove disc rotor. Refer to FA X - 5 , "
Removal and Installation" .
5. Remove cotter pin, then loosen hub lock nut.
6. Separate wheel hub and bearing assembly from drive shaft by
lightly tapping the end with hammer (suitable tool) and a wood
block, and then remove hub lock nut.
CAUTION:

Do not place drive shaft joint at an extreme angle. Also be
careful not to overextend slide joint.

Do not allow drive shaft to hang down without support for
housing (or joint sub-assembly), shaft and the other
parts.
NOTE:
Use a puller (suitable tool) if wheel hub and drive shaft cannot
be separated even after performing the above procedure.
7. Remove fixing nuts and bolts, and then remove steering knuckle
from strut assembly. Refer to FSU-7, "
Components" .
8. Remove drive shaft from wheel hub and bearing assembly.
9. Remove boot bands, and then remove boot from joint sub-
assembly.
10. Screw a drive shaft puller (suitable tool) into joint sub-assembly
screw part to a length of 30 mm (1.18 in) or more. Support drive
shaft with one hand and pull out joint sub-assembly with a slid-
ing hammer (suitable tool) from shaft.
CAUTION:

Align a sliding hammer and drive shaft and remove them
by pulling firmly and uniformly.

If joint sub-assembly cannot be pulled out, try after
removing drive shaft from vehicle.
SDIA1821E
SEIA0411J
SDIA0881J

FAX-10
FRONT DRIVE SHAFT

20. Install boot securely into grooves (indicated by *marks) shown in
the figure.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
21. Make sure boot installation length “L” is the length indicated
below. Insert flat-bladed screwdriver or similar tool into smaller
side of boot. bleed air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less then standard value.

Take care not to touch the tip of screwdriver to inside of boot.
22. Secure the large and small ends of boot with new boot bands
using boot band crimping tool [SST: KV40107300] as shown in
the figure.
NOTE:

Do not reuse boot bands.

Secure boot band so that dimension “M” meets the specifica-
tion as shown.
23. Secure joint sub-assembly and shaft, and then make sure that
they are in the correct position when rotating boot. Install them
with new boot band when boot installation positions become
incorrect.
24. Confirm that circular clip on transaxle side is fully engaged.
25. Insert drive shaft to wheel hub and bearing assembly, and then
temporarily tighten hub lock nut.
26. Install nuts and bolts of steering knuckle and strut. Refer to FSU-7, "
Components" , “FRONT SUSPEN-
SION ASSEMBLY” for tightening torque.
27. Install disc rotor. Refer to FAX-5, "
Removal and Installation" .
28. Install torque member fixing bolts to steering knuckle. Refer to BR-26, "
FRONT DISC BRAKE" .
29. Install wheel sensor to steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
30. Tighten lock nut to the specified torque. Refer to FA X - 11 , "
COMPONENT"
31. Install cotter pin.
NOTE:
Do not reuse cotter pin.
32. Install tires to vehicle.Engine model Boot installation length L
QR20DE
141.7 – 143.7 mm (5.58 – 5.66 in)
VQ23DE
VQ35DE 155.3 – 161.3 mm (6.11 – 6.35 in)
SDIA1760E
RAC1133D
Dimension “M” : 2.0 – 3.0 mm (0.079 – 0.118 in)
DSF0047D

FRONT DRIVE SHAFT
FAX-11
C
E
F
G
H
I
J
K
L
MA
B
FA X

Removal and Installation (LH)BDS0007N
COMPONENT
REMOVAL
1. Remove tires from vehicle.
2. Remove wheel sensor from steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove torque member fixing bolts. Hang torque member in a place where it will not interfere with work.
Refer to BR-26, "
FRONT DISC BRAKE" .
NOTE:
Do not depress brake pedal while brake caliper is removed.
4. Remove disc rotor. Refer to FAX-5, "
Removal and Installation" .
5. Remove cotter pin, then loosen hub lock nut.
6. Separate wheel hub and bearing assembly from drive shaft by
lightly tapping the end with hammer (suitable tool) and a wood
block, and then remove lock nut.
CAUTION:

Do not place drive shaft joint at an extreme angle. Also be
careful not to overextend slide joint.

Do not allow drive shaft to hang down without support for
housing (or joint sub-assembly), shaft and the other
parts.
NOTE:
Use a puller (suitable tool) if wheel hub and bearing assembly
and drive shaft cannot be separated even after performing the
above procedure.
7. Remove fixing nuts and bolts, and then remove steering knuckle
from strut assembly. Refer to FSU-7, "
Components" .
8. Remove drive shaft from wheel hub and bearing assembly.
1. Drive shaft 2. Cotter pin
SDIA1761E
SDIA1821E
SEIA0411J