
Tool number
Tool nameDescription
KV31102400
Clutch spring
compressor
NT423
Removing and installing clutch
return springs
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along
with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. The SRS system composition which is available to NISSAN MODEL Y61 is as follows (The
composition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the
steering wheel), front passenger air bag module (located on the instrument panel on passenger side),
seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of
front seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision),
wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
+To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
+Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and
Air Bag Module, see the RS section.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precautions
+Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to
prevent the internal parts from becoming contaminated by dirt or other foreign matter.
+Disassembly should be done in a clean work area.
+Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could inter-
fere with the operation of the transmission.
+Place disassembled parts in order for easier and proper assembly.
+All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection
or reassembly.
+Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
+It is very important to perform functional tests whenever they are indicated.
+The valve body contains precision parts and requires extreme care when parts are removed and ser-
viced. Place removed parts in a parts rack in order to replace them in correct positions and sequences.
Care will also prevent springs and small parts from becoming scattered or lost.
+Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
+Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, and to hold bearings and washers in place during assembly. Do not use grease.
PREPARATION AND PRECAUTIONS
Special Service Tools (Cont'd)
AT-1004

A/T Fluid Check
FLUID LEAKAGE CHECK
1. Clean area suspected of leaking. Ð for example, mating
surface of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in ªDº
position and wait a few minutes.
3. Stop engine.
4. Check for fresh leakage.
FLUID CONDITION CHECK
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pinkWater contamination Ð Road water
entering through filler tube or breather
Varnished fluid, light to dark brown
and tackyOxidation Ð Over or under filling, Ð
Overheating
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.
+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.
+During test, never hold throttle wide open for more than
5 seconds.
Stall revolution:
2,480 - 2,680 rpm
SAT801A
SAT638A
SAT647B
SAT513G
SAT514G
TROUBLE DIAGNOSIS Ð Basic Inspection
AT-1041

4. Set parking brake and block wheels.
+Continue to depress brake pedal fully while line pressure
test is being performed at stall speed.
5. Start engine and measure line pressure at idle and stall
speed.
+When measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure:
Refer to SDS, AT-1207.
JUDGEMENT OF LINE PRESSURE TEST
Judgement Suspected parts
At idleLine pressure is low in all
positions.+Oil pump wear
+Control piston damage
+Pressure regulator valve or plug sticking
+Spring for pressure regulator valve damaged
+A/T fluid pressure leakage between oil strainer and pressure regulator valve
+Clogged strainer
Line pressure is low in par-
ticular position.+Fluid pressure leakage between manual valve and particular clutch
+For example, line pressure is:
Ð Low in ªRº and ª1º positions, but
Ð Normal in ªDº and ª2º positions.
Then, fluid leakage exists at or around low and reverse brake circuit.
Refer to ªCLUTCH AND BAND CHARTº, AT-1025.
Line pressure is high.+Mal-adjustment of throttle position sensor
+A/T fluid temperature sensor damaged
+Line pressure solenoid valve sticking
+Short circuit of line pressure solenoid valve circuit
+Pressure modifier valve sticking
+Pressure regulator valve or plug sticking
+Open in dropping resistor circuit
At stall speedLine pressure is low.+Mal-adjustment of throttle position sensor
+Line pressure solenoid valve sticking
+Short circuit of line pressure solenoid valve circuit
+Pressure regulator valve or plug sticking
+Pressure modifier valve sticking
+Pilot valve sticking
SAT513G
SAT493G
TROUBLE DIAGNOSIS Ð Basic Inspection
Line Pressure Test (Cont'd)
AT-1045

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along
with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. The SRS system composition which is available to NISSAN MODEL Y61 is as follows (The
composition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the
steering wheel), front passenger air bag module (located on the instrument panel on passenger side),
seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+ For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of
front seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision),
wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in the RS sectionof this Service Manual.
WARNING:
+ To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
+ Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by intentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the RS section.
+ Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
PRECAUTIONS
BT-1002

Special Service Tool
Tool number
Tool nameDescription
KV10109300
Puller holder
NT628a = 68 mm (2.68 in)
b = 8 mm (0.31 in) dia.
Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along
with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. The SRS system composition which is available to NISSAN MODEL Y61 is as follows (The
composition varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the
steering wheel), front passenger air bag module (located on the instrument panel on passenger side),
seat belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of
front seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision),
wiring harness, warning lamp (one of components of air bags for a frontal collision).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
+To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
+Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and
Air Bag Module, see the RS section.
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
PRECAUTIONS AND PREPARATIONZD30DDTi
EC-1005

Basic Inspection
Precaution:
Perform Basic Inspection without electrical or mechanical
loads applied;
+Shift lever is in neutral position,
+Heat up switch is OFF,
+Headlamp switch is OFF,
+Air conditioner switch is OFF,
+Rear defogger switch is OFF,
+Steering wheel is in the straight-ahead position, etc.
1 INSPECTION START
1. Check service records for any recent repairs that may indicate a related problem.
2. Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to MA section.
3. Open engine hood and check the following:
+Harness connectors for improper connections
+Vacuum hoses for splits, kinks, or improper connections
+Wiring for improper connections, pinches, or cuts
SEF142I
4. Start engine and warm it up to the normal operating temperature.
cGO TO 2.
2 PREPARATION FOR CHECKING IDLE SPEED
With CONSULT-II
Connect CONSULT-II to the data link connector.
Without CONSULT-II
Install diesel tacho tester to the vehicle.
cGO TO 3.
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONZD30DDTi
EC-1049

CONSULT-II Reference Value in Data Monitor
Mode
Remarks:
+Specification data are reference values.
+Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
MONITOR ITEM CONDITION SPECIFICATION
CKPSzRPM (TDC)
+Tachometer: Connect
+Run engine and compare tachometer indication with the CONSULT-II value.Almost the same speed as the
CONSULT-II value.
CMPSzRPM-PUMP
COOLAN TEMP/S+Engine: After warming up More than 70ÉC (158ÉF)
VHCL SPEED SE+Turn drive wheels and compare speedometer indication with the CONSULT-II valueAlmost the same speed as the
CONSULT-II value
FUEL TEMP SEN+Engine: After warming up More than 40ÉC (104ÉF)
ACCEL POS SEN+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released 0.40 - 0.60V
Accelerator pedal: fully depressed Approx. 4.5V
FULL ACCEL SW+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully depressed ON
Except above OFF
ACCEL SW (FC)+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released CLOSE
Accelerator pedal: slightly open OPEN
OFF ACCEL SW+Ignition switch: ON
(Engine stopped)Accelerator pedal: fully released ON
Accelerator pedal: slightly open OFF
SPILL/V+Engine: After warming up Approx. 13ÉCA
BATTERY VOLT+Ignition switch: ON (Engine stopped) 11 - 14V
P/N POSI SW+Ignition switch: ONShift lever: Park/Neutral ON
Except above OFF
START SIGNAL+Ignition switch: ON®START®ON OFF®ON®OFF
AIR COND SIG+Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)ON
BRAKE SW+Ignition switch: ONBrake pedal: depressed ON
Brake pedal: released OFF
IGN SW+Ignition switch: ON®OFF ON®OFF
WARM UP SW+Ignition switch: ONHeat up switch: ON ON
Heat up switch: OFF OFF
MAS AIR/FL SE+Engine: After warming up
+Air conditioner switch: OFF
+Shift lever: Neutral position
+No-loadIdle 1.6 - 2.0V
DECELER F/CUT+Engine: After warming up Idle OFF
INJ TIMG C/V+Engine: After warming up, idle the engine. Approx. 50 - 70%
AIR COND RLY+Engine: After warming up, idle the
engineAir conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates.)ON
GLOW RLY+Refer to EC-1221.
COOLING FAN+When cooling fan is stopped. OFF
+When cooling fan operates. ON
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTIONZD30DDTi
EC-1065

Overall Function Check
Use this procedure to check the overall function of the vehicle
speed sensor circuit. During this check, a DTC might not be
confirmed.
WITH CONSULT-II
1) Lift up the vehicle.
2) Start engine.
3) Read vehicle speed sensor signal in ªDATA MONITORº
mode with CONSULT-II.
The vehicle speed on CONSULT-II should be able to
exceed 10 km/h (6 MPH) when rotating wheels with suit-
able gear position.
4) If NG, go to ªDiagnostic Procedureº, EC-1099.
WITHOUT CONSULT-II
1) Lift up the vehicle.
2) Start engine.
3) Rotate drive wheel by hand.
4) Check voltage between ECM terminal 26 and ground with
tester.
Voltage should vary between 0 - 4.8V.
5) If NG, go to ªDiagnostic Procedureº, EC-1099.
SEF864Y
SEF811R
DTC 0104 VEHICLE SPEED SENZD30DDTi
EC-1097