2002 NISSAN TERRANO engine

Fuel Tank Gauge Unit Check
IFor removal, refer to FE section.
Check the resistance between terminals (G) and (E).
Ohmmeter Float position mm (in)
Resis-
tance
value
(W) (+) (þ)TD27Ti ZD30DDTi
Hardtop
modelsWagon
modelsHardtop
modelsWagon
models
GE*3 Full 36 (1.42) 25 (0.98) 37 (1.46) 27 (1.06)Approx.
7
2 1/2159
(6.26)120
(4.72)160
(6.30)120
(4.72)96 - 108
*1Emp-
ty286
(11.26)218
(8.58)282
(11.10)220
(8.66)280 -
290
Values *1 and *3: with the dipstick float at its lower or upper limit.
Thermal Transmitter Check
Check the resistance between the terminals of thermal transmitter
and body ground.
Water temperature Resistance
65ÉC (149ÉF) Approx. 951 - 1,109W
91ÉC (196ÉF) Approx. 431 - 510W
Oil Pressure Switch Check
Check the continuity between the terminals of oil pressure switch
and body ground.
Oil pressure
kPa (bar, kg/cm2, psi)Continuity
Engine startMore than 10 - 20 (0.10
- 0.20, 0.1 - 0.2, 1.4 -
2.8)NO
Engine stopLess than 10 - 20 (0.10 -
0.20, 0.1 - 0.2, 1.4 - 2.8)YES
YEL297D
SEL233P
SEL748K
METER AND GAUGES
EL-80

Trouble Diagnoses
Symptom Possible cause Repair order
Radio inoperative (no digital
display and no sound from
speakers).1. 10A Fuse
2. Poor radio case ground
3. Radio1. Check 10A fuse [No.
3 , located in fuse block (J/B)].
Turn ignition switch ON and verify battery positive volt-
age is present at terminalq
3of radio.
2. Check radio case ground.
3. Remove radio for repair.
Radio controls are
operational, but no sound is
heard from any speaker.1. Radio output
2. Radio1. Check radio output voltages.
2. Remove radio for repair.
Radio presets are lost when
ignition switch is turned OFF.1. 15A fuse
2. Radio1. Check 15A fuse [No.
35 , located in fuse and fusible
box] and verify battery positive voltage is present at
terminalq
9of radio.
2. Remove radio for repair.
Individual speaker is noisy or
inoperative.1. Speaker
2. Radio output
3. Speaker circuit
4. Radio1. Check speaker.
2. Check radio output voltages.
3. Check wires for open or short between radio and
speaker.
4. Remove radio for repair.
Radio stations are weak or
noisy.1. Antenna
2. Poor radio ground
3. Radio1. Check antenna.
2. Check radio ground.
3. Remove radio for repair.
Radio generates noise in AM
and FM modes with engine
running.1. Poor radio ground
2. Loose or missing ground bonding
straps
3. Ignition condenser or rear window
defogger noise suppressor con-
denser
4. Alternator
5. Ignition coil or secondary wiring
6. Radio1. Check radio ground.
2. Check ground bonding straps.
3. Replace ignition condenser or rear window defogger
noise suppressor condenser.
4. Check alternator
5. Check ignition coil and secondary wiring.
6. Remove radio for repair.
Radio generates noise in AM
and FM modes with accesso-
ries on (switch pops and
motor noise).1. Poor radio ground
2. Antenna
3. Accessory ground
4. Faulty accessory1. Check radio ground.
2. Check antenna.
3. Check accessory ground.
4. Replace accessory.
AUDIO
EL-124

DIAGNOSTIC PROCEDURE 6
(NATS release signal check)
Does engine start properly?
Ye s
ENo
Check NATS system.
CHECK NATS SIGNAL CIRCUIT.
1) Disconnect control unit connector and
NATS IMMU connector.
2) Check continuity between control unit
terminal
U26and NATS IMMU termi-
nalq
3.
Continuity should exist.
3) Check continuity between control unit
terminal
U26and ground.
Continuity should not exist.
OK
ENG
Repair harness.
CHECK NATS RELEASE SIGNAL.
1) Connect control unit connector and
NATS IMMU connector.
2) Check voltage between control unit
terminal
U26and ground.
OK
ENG
Check NATS system.
Replace super lock control unit.
Ignition switch conditionVoltage
[V]
LOCK
12
More than 10 seconds after ignition
switch turned to ªONº position
For 10 seconds after ignition
switch turned to ªONº positionPulse
YEL314D
YEL315D
H
H
H
POWER DOOR LOCK Ð SUPER LOCK Ð
Trouble Diagnoses (Cont'd)
EL-166

System Description
NATS has the following immobiliser functions:
IThis version of NATS has dongle control unit to improve its anti-theft performance (RHD models). Dongle
control unit has its own ID which is registered into NATS IMMU. So if dongle unit is replaced, initialization
must be carried out.
IWhen malfunction of dongle unit is detected:
The security indicator lamp illuminates for about 15 minutes after ignition switch is turned to ON.
Ð When dongle control unit has a malfunction, and the indicator lamp is illuminated, engine can not be
started. However engine can be started only one time when security indicator lamp turns off in about
15 minutes after ignition switch is turned to ON.
ISince only NATS ignition keys, whose ID nos. have been registered into the ECM and IMMU of NATS,
allow the engine to run, operation of a stolen vehicle without a NATS registered key is prevented by NATS.
That is to say, NATS will immobilize the engine if someone tries to start it without the registered key of
NATS.
IAll of the originally supplied ignition key IDs have been NATS registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NATS compo-
nents.
IThe NATS security indicator (NATS security ind.) blinks when the ignition switch is in ªOFFº or ªACCº
position. Therefore, NATS warns outsiders that the vehicle is equipped with the anti-theft system.
IWhen NATS detects trouble, the security indicator lamp lights up as follows.
Condition IGN ON andWith dongle Without dongle
MIL Security indicator MIL Security indicator
NATS malfunction
(except dongle control
unit) is detectedÐ 6 times blinking
Staying ON after ignition
switch is turned ONÐ Staying ON
Only malfunction of
dongle control unit is
detected.Ð Staying ON for about 15
minutes after ignition
switch is turned ONÐÐ
Malfunction of NATS and
engine related parts are
detected.Staying ON 6 times blinking
Staying ON after ignition
switch is turned ONStaying ON Staying ON
Only engine related part
malfunction is detected.Staying ON Ð Staying ON Ð
Just after initialization of
NATSÐ 6 times blinking Ð Ð
INATS trouble diagnoses, system initialisation and additional registration of other NATS ignition key IDs
must be carried out using CONSULT-II hardware and CONSULT-II NATS software.
Regarding the procedures of NATS initialisation and NATS ignition key ID registration, refer to CONSULT-II
operation manual, NATS.
IWhen servicing a malfunction of the NATS (indicated by lighting up of security Indicator Lamp) or
registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive all keys and the PIN code from vehicle owner.
NATS (Nissan Anti-Theft System)
EL-186

System Composition
The immobiliser function of the NATS for Nissan model R20 consists of the following:
INATS ignition key
INATS immobiliser control unit (NATS IMMU), located in the ignition key cylinder
IEngine control module (ECM)
IDongle control unit (RHD models)
INATS security indicator
INATS audio link
YEL349D
NATS (Nissan Anti-Theft System)
EL-187

CONSULT-II
CONSULT-II INSPECTION PROCEDURE
1. Turn ignition switch OFF.
2. Connect ªCONSULT-IIº to Data link connector.
3. Insert NATS program card into CONSULT-II.
: Program card
NATS (AEN00A)
4. Turn ignition switch ON.
5. Touch ªSTARTº.
6. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual,
NATS.
CONSULT-II DIAGNOSTIC TEST MODE FUNCTION
CONSULT-II DIAGNOSTIC TEST
MODEDescription
C/U INITIALIZATION When replacing any of the following components, C/U initialization is necessary.
[NATS ignition key/IMMU/ECM/Dongle]
SELF-DIAGNOSTIC RESULTS Detected items (screen terms) are as shown in the chart below.
NOTE:
When any initialisation is performed, all ID previously regis-
tered will be erased and all NATS ignition keys must be regis-
tered again.
The engine cannot be started with an unregistered key. In this
case, the system may show ªDIFFERENCE OF KEYº or ªLOCK
MODEº as a self-diagnostic result on the CONSULT-II screen.
When initialisation is performed for RHD models for Europe,
security indicator will flash six times to demonstrate recogni-
tion of dongle ID.
NRS071
PBR455D
SEL150X
NATS (Nissan Anti-Theft System)
EL-193

HOW TO READ SELF-DIAGNOSTIC RESULTS
NATS SELF-DIAGNOSTIC RESULTS ITEM CHART
Detected items
(NATS program card screen
terms)P No. Code
(Self-diagnos-
tic result of
ªENGINEº)Malfunction is detected when ... Reference page
ECM INT CIRC-IMMUNATS MAL-
FUNCTION
P1613The malfunction of ECM internal circuit of IMMU communication line is
detected.EL-198
CHAIN OF ECM-IMMUNATS MAL-
FUNCTION
P1612Communication impossible between ECM and IMMU EL-199
DIFFERENCE OF KEYNATS MAL-
FUNCTION
P1615IMMU can receive the key ID signal but the result of ID verification between
key ID and IMMU is NG.EL-201
CHAIN OF IMMU-KEYNATS MAL-
FUNCTION
P1614IMMU cannot receive the key ID signal. Or the registered ID signal from
dongle unit can not be received when the IMMU request the ID.EL-202
ID DISCORD, IMM-ECMNATS MAL-
FUNCTION
P1611The result of ID verification between IMMU and ECM is NG. System initializa-
tion is required.EL-204
DON'T ERASE BEFORE
CHECKING ENG DIAGÐAll engine trouble codes except NATS trouble code have been detected in
ECM.EL-195
LOCK MODENATS MAL-
FUNCTION
P1610When the starting operation is carried out five or more times consecutively
under the following conditions, NATS will shift the mode to one which pre-
vents the engine from being started.
IUnregistered ignition key is used.
IIMMU or ECM is malfunctioning.EL-206
SEL308W
NATS (Nissan Anti-Theft System)
CONSULT-II (Cont'd)
EL-194

Trouble Diagnoses
WORK FLOW
CHECK IN
Listen to customer complaints or request. (Get symptoms)
TROUBLEKEY SERVICE REQUEST (Additional key ID registration)H
Verify the security indicator and MI*.INITIALISATION
(Refer to CONSULT-II operation
manual NATS.)
EUsing the CONSULT-II program card for NATS check the
ªSELF-DIAG RESULTSº with CONSULT-II.F
Self-diagnostic results referring to NATS, but no information
about engine self-diagnostic results is displayed on CONSULT-
II.
Turn ignition switch ªOFFº.
Repair NATS.
(If necessary, carry out ªC/U INITIALIZATIONº with CONSULT-
II.)
Turn ignition switch ªONº.
Erase the NATS ªSELF-DIAG RESULTSº by using CONSULT-
II. (Touch ªERASEº.)
Start the engine.
NGVerify no lighting up of the security indicator.
OK
CHECK OUT
Perform running test with CONSULT-II in engine ªSELF-DIAG
RESULTSº mode.
NGVerify ªNO DTC IS DETECTEDº displayed on the CONSULT-II
screen.
OK
CHECK OUT
Self-diagnostic results referring to NATS and ªDON'T
ERASE BEFORE CHECKING ENG DIAGº are displayed on
CONSULT-II.
(This means that engine trouble data has been detected in
ECM.)
Turn ignition switch ªOFFº.
Repair NATS according to self-diagnostic results referring to
NATS.
(If necessary, carry out ªC/U INITIALIZATIONº with CON-
SULT-II.)
Do not erase the NATS ªSELF-DIAG RESULTSº by using
CONSULT-II.
Check the engine ªSELF-DIAG RESULTSº with CONSULT-II
by using the CONSULT-II generic program card.
(Engine diagnostic software included)
OK
F
Repair engine control system (Refer to EC section.) when
self-diagnostic results except ªNATS MALFUNCTIONº are
detected. When only ªNATS MALFUNCTIONº is detected,
erase the self-diagnostic results and go to the next step.
Start the engine. Does the engine start properly?NG
Erase the NATS and engine ªSELF-DIAG RESULTSº by
using the CONSULT-II program card for NATS and generic
program card.
Start the engine.
H
H
H
HH
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
NATS (Nissan Anti-Theft System)
EL-195