2004 NISSAN TERRANO check engine light

A/T Fluid Check
FLUID LEAKAGE CHECK
1. Clean area suspected of leaking. Ð for example, mating sur-face of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in ªDº posi- tion and wait a few minutes.
3. Stop engine.
4. Check for fresh leakage.
FLUID CONDITION CHECK
Fluid color Suspected cause
Dark or black with burned odor Wear of frictional material
Milky pink Water contamination Ð Road water enter-
ing through filler tube or breather
Varnished fluid, light to dark
brown and tacky Oxidation Ð Over or under filling, Ð Over-
heating
FLUID LEVEL CHECK
Refer to MA section (ªChecking A/T Fluidº, ªCHASSIS AND BODY
MAINTENANCEº).
Stall Test
STALL TEST PROCEDURE
1. Check A/T and engine fluid levels. If necessary, add.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.ATF operating temperature: 50 - 80ÉC (122 - 176ÉF)
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
I It is good practice to put a mark on point of specified
engine rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in ªDº position.
6. Accelerate to wide open throttle gradually while applying foot brake.
7. Quickly note the engine stall revolution and immediately release throttle.
I During test, never hold throttle wide open for more than 5
seconds.
Stall revolution: 2,450 - 2,700 rpm
SAT801A
SAT638A
SAT647B
SAT513G
SAT514G
TROUBLE DIAGNOSIS Ð Basic Inspection
AT-27
http://vnx.su/

18. Engine Speed Does Not Return To Idle(Light Braking D
4®D3)
SYMPTOM:
I Engine speed does not smoothly return to idle when A/T
shifts from D
4to D3.
I Vehicle does not decelerate by engine brake when turning
overdrive control switch OFF.
I Vehicle does not decelerate by engine brake when shifting
A/T from ªDº to ª2º position.
Does self-diagnosis show damage to
overrun clutch solenoid valve circuit after
cruise test?
No
EYe s
Check overrun clutch sole-
noid valve. Refer to AT-71.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº].
OK
ENGRepair or replace throttle
(accelerator) position sen-
sor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG 1. Remove control valve
assembly. Refer to
AT-118.
2. Check the following items:
I Overrun clutch control
valve
I Overrun clutch reducing
valve
I Overrun clutch solenoid
valve
3. Disassemble A/T.
4. Check the following items:
I Overrun clutch assembly
I Oil pump assembly
1. Remove control valve assembly. Refer
to AT-118.
2. Check the following items:
I Overrun clutch control valve
I Overrun clutch reducing valve
I Overrun clutch solenoid valve
OK
FOK
Check again.
OK
ENG 1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with
harness connector.
INSPECTION END
YAT338
NAT262
SAT171B
H
H
H
HH
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-113
http://vnx.su/

23. A/T Does Not Shift: 22®11, When Selector
Lever ª2º ®ª1º Position
SYMPTOM:
A/T does not shift from 22to 11when changing selector lever
from ª2º to ª1º position.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
---------------------------------------------------------------------------------------------------------------------- -OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch circuit. Refer to
AT-97.
Check again.
OK
ENG1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin terminals for damage or
loose connection with
harness connector.
INSPECTION END
24. Vehicle Does Not Decelerate By Engine
Brake
SYMPTOM:
Vehicle does not decelerate by engine brake when shifting
from 2
2(12)to11.
Is 9. Vehicle Does Not Creep Backward In
ªRº Position OK?
Ye s
ENo Go to 9. Vehicle Does Not
Creep Backward In ªRº
Position, AT-105.
Go to 18. Engine Speed Does Not Return
To Idle (Light Braking D
4,D3), AT-113.
SAT146BA
SAT778B
H
H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-117
http://vnx.su/

ITighten bolts securing transmission.
Bolt No. Tightening torque
N×m (kg-m, ft-lb) Bolt length ªº
mm (in)
q
139 - 49 (4.0 - 5.0, 29 - 36) 58.0 (2.28)
q
229 - 39 (3.0 - 4.0, 22 - 29) 90.0 (3.54)
q
318 - 22 (1.8 - 2.2, 13 - 16) 16.0 (0.63)
q
43 - 4 (0.3 - 0.4, 2.2 - 2.9) 12.0 (0.47)
q
529 - 39 (3.0 - 4.0, 22 - 29) 35.0 (1.38)
IReinstall any part removed.
I Check fluid level in transmission.
I Move selector lever through all positions to be sure that trans-
mission operates correctly.
With parking brake applied, rotate engine at idling. Move selec-
tor lever through ªNº to ªDº, to ª2º, to ª1º and to ªRº positions.
A slight shock should be felt by hand gripping selector each
time transmission is shifted.
I Perform road test. Refer to ªROAD TESTº, AT-32.NAT287
SAT638A
REMOVAL AND INSTALLATION
Installation (Cont'd)
AT-123
http://vnx.su/

Removal and Installation
Inspection
OPERATING CHECK
IDepress brake pedal several times with engine off, and check
that there is no change in pedal stroke.
I Depress brake pedal, then start engine. If pedal goes down
slightly, operation is normal.
AIRTIGHT CHECK
IStart engine, and stop it after one or two minutes. Depress
brake pedal several times slowly. If pedal goes further down the
first time and gradually rises after second or third time, booster
is airtight.
I Depress brake pedal while engine is running, and stop engine
with pedal depressed. If there is no change in pedal stroke after
holding pedal down 30 seconds, brake booster is airtight.
OUTPUT ROD LENGTH CHECK
1. Apply vacuum of þ66.7 kPa (þ667 mbar, þ500 mmHg, þ19.69
inHg) to brake booster with a manual vacuum pump and check
output rod length ªAº.Specified length ªAº: 22.15 - 22.45 mm (0.872 - 0.884 in)
(The length ªAº in this case is the distance from end of output
rod to outside of brake booster, when the specified vacuum is
applied.)
YBR451
SBR002A
SBR365A
EBR090
BRAKE BOOSTER
BR-18
http://vnx.su/

ICheck inner wall of vacuum pump housing for wear. If
necessary, replace.
I Check rotor shaft for wear. If necessary, replace.
I Check valve locations and copper washers for bends or defor-
mation. If necessary, replace.
I Check that valve operates smoothly when slightly pushed.
Replace if necessary.
I Check for air leakage with 98 to 490 kPa (1.0 to 4.9 bar, 1 to
5 kg/cm
2, 14 to 71 psi) of air pressure.
Replace if necessary.
NBR134
SBR194
SBR195
VACUUM PUMP (TD27Ti engine model)
Inspection (Cont'd)
BR-25
http://vnx.su/

Purpose
The Anti-lock Brake System (ABS) with an integrated Electronic Brake force Distribution (EBD) system con-
sists of electronic and hydraulic components. It allows you to control the braking force so that wheel lock can
be avoided during braking.
The advantages of ABS with EBD
1) Better tracking performance through improved steering wheel control.
2) Improved maneuverability and safer vehicle control.
3) Improved vehicle stability by preventing flat spins.
4) Shorter stopping distance and optimal utilisation of the rear brakes under many different circumstances.
Operation
IABS with EBD has self-test capabilities. The ABS warning lamp is illuminated for 1 second each time the
ignition switch is turned ªONº. After the engine is started, the ABS warning lamp turns off. An ABS self-test
is performed the first time the vehicle reaches 6 km/h (4 MPH) to ensure the system is operational. A
mechanical noise may be heard as the ABS performs this self-test and is a normal part of the self-test
feature. If a malfunction is detected during this check, the ABS warning lamp will stay on.
During the self-test, it also performs a EBD check when it detects a failure the ABS warning light will go
on simultaneously with the brake warning light and an audible sound will sound constantly.
I EBD system will only operate when the ABS is not in active status and it uses the inlet valves of ABS con-
trol unit to limit the pressure to the rear wheels when they tend to go into slip.
I When the vehicle speed is less than 10 km/h (6 MPH) the ABS system does not operate.
I While driving, a mechanical noise may be heard during ABS operation, this is a normal system condition.
ABS Hydraulic Circuit
q1Inlet solenoid valve
q
2Outlet solenoid valve
q
3Reservoir q
4Pump
q
5Motor q
6By pass check valve
q
7Damper
NBR346
ANTI-LOCK BRAKE SYSTEM
BR-38
http://vnx.su/

Checking Fluid Leakage
Check the lines for improper attachment and for leaks, cracks,
damage, loose connections, chafing or deterioration.
1. Run engine between idle speed and 1,000 rpm.
Make sure temperature of fluid in oil tank rises to 50 to 80ÉC
(122 to 176ÉF).
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each ªlockº position for five seconds andcarefully check for fluid leakage.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 10 seconds (There is possibility that oil pump may be
damaged.).
4. If fluid leakage at connectors is noticed, loosen flare nut and then retighten.
Do not overtighten connector as this can damage O-ring,
washer and connector.
5. If fluid leakage at the connectors are noticed, then loosen the flare nut and retighten it.
Bleeding Hydraulic System
1. Raise front end of vehicle until wheels are clear of the ground.
2. Add fluid into oil tank to specified level. Meanwhile quickly turnsteering wheel fully to right and left and lightly touch steering
stoppers.
Repeat steering wheel operation until fluid level no longer
decreases.
3. Start engine. Repeat step 2 above.
I Incomplete air bleeding will cause the following to occur. When
this happens, bleed air again.
a. Generation of air bubbles in reservoir tank
b. Generation of clicking noise in oil pump
c. Excessive buzzing in oil pump
While the vehicle is stationary or while moving the steering wheel
slowly, fluid noise may occur in the valve or oil pump. This noise is
inherent in this steering system, and it will not affect performance
or durability of the system.
SST621A
ON-VEHICLE SERVICE
ST-5
http://vnx.su/